{ "schemaVersion": 1, "productId": "ubiquiti-unas-4", "exactMpn": "UNAS-4", "runId": "buying-research-full-grok-20260911", "recordedAt": "2026-09-11T14:30:39.185672+00:00", "subject": { "sha256": "bf2de83068ffc52403960d4992b41956940528f28a002c72e3d1b4d29103d82e", "hashKind": "research-payload-sha256", "algorithm": "SHA-256 of UTF-8 JSON with recursively sorted object keys, no optional whitespace, Unicode unescaped; remove only top-level provenance, reviewedAt, reviewedBy, editorialStatus." }, "actors": [ { "id": "legacy-qnap_research", "label": "GPT-5.6 Sol", "provider": "openai", "model": "gpt-5.6-sol", "effort": "xhigh", "agentRoleName": "qnap_research", "identityBasis": "Verified dispatch model selection and matching dated run report; not a provider-side attestation.", "evidenceRefs": [ "reports/buying-research-all-products-20260910/README.md" ] }, { "id": "legacy-hdd_research", "label": "GPT-5.6 Sol", "provider": "openai", "model": "gpt-5.6-sol", "effort": "xhigh", "agentRoleName": "hdd_research", "identityBasis": "Verified dispatch model selection and matching dated run report; not a provider-side attestation.", "evidenceRefs": [ "reports/buying-research-all-products-20260910/README.md" ] }, { "id": "legacy-other_nas_research", "label": "GPT-5.6 Sol", "provider": "openai", "model": "gpt-5.6-sol", "effort": "xhigh", "agentRoleName": "other_nas_research", "identityBasis": "Verified dispatch model selection and matching dated run report; not a provider-side attestation.", "evidenceRefs": [ "reports/buying-research-all-products-20260910/README.md" ] }, { "id": "legacy-codex-root", "label": "GPT-6 (Codex)", "provider": "openai", "model": null, "modelFamily": "GPT-6", "effort": null, "agentRoleName": "root", "identityBasis": "Codex host model family confirmed; exact model variant/effort not preserved in the product audit. 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Video and blocked figures excluded.", "evidenceChecks": [ "Parent read saved exact product variants, SKU, color, stock status, base and surcharge-inclusive price and visible buy box; original observation date retained, no fresh-fetch claim.", "Parent read all model specification sections, flags and footnotes. Full published semantic fields retained; memory/ECC/compatibility unknowns not invented.", "Full available manufacturer warranty text read; channel start dates, replacement and data responsibility qualified.", "Parent independently read full available original written article; UNAS 4; mixed Windows file transfers including a 50 GB copy over native 2.5GbE, NVMe cache compared enabled/disabled. Power with four HDDs and two NVMe, plus empty chassis. Exact drive MPNs, RAID, firmware and client NIC are not specified in the available prose. Full written original article read by parent; ten attempted performance/power figures remained blocked, so recorded values are the author’s prose readings. Cache effect is workload-specific; no matched raw numerical cache-on/off dataset was recovered. Exact RAID, firmware, drive models and measurement instruments are not disclosed. August follow-up is the same test family.", "Full available original follow-up article read. Same reviewer/sample test family; no independent new measurement group. Third-party USB-NIC/photo-backup reports are not original experiments.", "Full original preliminary article body read, including hardware comparison, application limits and conclusion. No original throughput measurements; historical scheduling caps do not establish current limits.", "Parent read exact MPN, condition, displayed price and order/lead-time terms in saved primary page. Flytec JSON-LD OutOfStock, quote-only restriction and separate surcharge qualified; no checkout.", "Parent read full relevant official help article body and tables/footnotes; model-specific scope separated from Pro/ENAS/Protect. Cache exclusions and RAID minimum-disk footnotes retained.", "Parent independently read full available original written article; UNAS 4; four reused WD Red SATA SSDs in RAID 10, two 500 GB NVMe installed, 90W injector, Flex Mini 2.5G switch and Dream Router 7. Firmware unspecified. No controlled restore, endurance, acoustic or throughput test. Time Machine illustration identifies UNAS-2, so it does not verify UNAS 4 restore. Installed NVMe is not proof of effective caching: current official instructions exclude SSD pools. RAID 10 cannot survive arbitrary two-drive failures. Affiliate links present; sample/payment disclosure not established. Original figures were not recovered; captions are not visual inspection." ] } ], "sourceOrigins": { "status": "not-inferred-per-source", "explanation": "The recorded page researchers/reviewers do not prove who originally discovered or reread each inherited source. Source-level historical author attribution is unknown unless a specific source audit establishes it." }, "sources": [ { "id": "official-product", "title": "Ubiquiti US Store UNAS 4", "url": "https://store.ui.com/us/en/products/unas-4", "kind": "official", "checkedAt": "2026-09-11T09:52:09.000Z", "locator": "NEXT_DATA displaySku UNAS-4; UNAS-4-W Available $379/$408; UNAS-4-B ComingSoon", "readAction": "opened", "readScope": "Parent read saved exact product variants, SKU, color, stock status, base and surcharge-inclusive price and visible buy box; original observation date retained, no fresh-fetch claim.", "readingActorId": "current-codex-root", "observedAt": "2026-09-11T09:52:09.000Z", "checkedOn": "2026-09-11", "materials": [ { "sha256": "5809a12c53e3b08cc8d13bdeacd40112a46674ea803b76791bf9ce356f1a881c", "mimeType": "text/html", "sourceUrl": "https://store.ui.com/us/en/products/unas-4", "description": "US store HTML" }, { "sha256": "22855c9d5463351cb6df5655ded89addb5d7e1adba10f1c086631f794c5189f0", "mimeType": "text/markdown", "sourceUrl": "local-research-notes", "description": "Tool-captured facts 2026-09-11" }, { "sha256": "82cf26690b970b7f3102ea155b9f4110fee5c53d53233193e72f2c6f4d9b6e16", "mimeType": "application/json", "sourceUrl": "https://store.ui.com/us/en/products/unas-4", "description": "Original material read within the explicitly recorded parent scope." }, { "sha256": "362f4d96f218b300ea22421b1fcf98251c7d0f3c98278df30e314032b133f51d", "mimeType": "text/plain", "sourceUrl": "https://store.ui.com/us/en/products/unas-4", "description": "Original material read within the explicitly recorded parent scope." } ] }, { "id": "src-n50-07-s-ubiquiti-unas-4", "title": "UniFi UNAS 4 tech specs", "url": "https://techspecs.ui.com/unifi/integrations/unas-4", "kind": "official", "checkedAt": "2026-09-11T09:52:09.000Z", "locator": "technicalSpecification Overview/Hardware/Software; RAID 5/6/10; SSD cache 2 TiB", "readAction": "opened", "readScope": "Parent read all model specification sections, flags and footnotes. Full published semantic fields retained; memory/ECC/compatibility unknowns not invented.", "readingActorId": "current-codex-root", "observedAt": "2026-09-11T09:52:09.000Z", "checkedOn": "2026-09-11", "materials": [ { "sha256": "33a9fe9d3057aa85ed866a1f05139ec2785f1668c78db8194bcfca98b393f6f4", "mimeType": "text/html", "sourceUrl": "https://techspecs.ui.com/unifi/integrations/unas-4", "description": "Tech specs HTML" }, { "sha256": "656ffb9a327a0d2f9cc85206d9f42997b89a1f0d2e16b96f5210fbdbcd07dc40", "mimeType": "application/json", "sourceUrl": "https://techspecs.ui.com/unifi/integrations/unas-4", "description": "Original material read within the explicitly recorded parent scope." } ] }, { "id": "src-n50-07-s-ui-warranty", "title": "Ubiquiti limited warranty", "url": "https://www.ui.com/support/warranty", "kind": "policy", "checkedAt": "2026-09-11T09:52:09.000Z", "locator": "Full policy read: two years from direct delivery; one year from shipment to authorized distributor/reseller; replacement does not extend term.", "readAction": "opened", "readScope": "Full available manufacturer warranty text read; channel start dates, replacement and data responsibility qualified.", "readingActorId": "current-codex-root", "observedAt": "2026-09-11T09:52:09.000Z", "checkedOn": "2026-09-11", "materials": [ { "sha256": "765692ee9ef1e94f711b6fe042416ce582893dd2ec3e12884b270521f80bf190", "mimeType": "text/html", "sourceUrl": "https://www.ui.com/support/warranty", "description": "Warranty HTML" }, { "sha256": "7ac53a1eea4c4406e14693ea5730e22b7e4a5f3b5057232323457a43f8fb159c", "mimeType": "text/plain", "sourceUrl": "https://www.ui.com/support/warranty", "description": "Original material read within the explicitly recorded parent scope." } ] }, { "id": "src-n50-07-s-historical-price", "title": "UNAS 4 store historical price row", "url": "https://store.ui.com/us/en/products/unas-4", "kind": "official", "checkedAt": "2026-09-11T09:52:09.000Z", "locator": "Retained baseline source id; current money taken from 2026-09-11 NEXT_DATA", "readAction": "opened", "readScope": "Parent read saved exact product variants, SKU, color, stock status, base and surcharge-inclusive price and visible buy box; original observation date retained, no fresh-fetch claim.", "readingActorId": "current-codex-root", "checkedOn": "2026-09-11", "materials": [ { "sha256": "22855c9d5463351cb6df5655ded89addb5d7e1adba10f1c086631f794c5189f0", "mimeType": "text/markdown", "sourceUrl": "local-research-notes", "description": "Tool-captured facts 2026-09-11" }, { "sha256": "82cf26690b970b7f3102ea155b9f4110fee5c53d53233193e72f2c6f4d9b6e16", "mimeType": "application/json", "sourceUrl": "https://store.ui.com/us/en/products/unas-4", "description": "Original material read within the explicitly recorded parent scope." }, { "sha256": "362f4d96f218b300ea22421b1fcf98251c7d0f3c98278df30e314032b133f51d", "mimeType": "text/plain", "sourceUrl": "https://store.ui.com/us/en/products/unas-4", "description": "Original material read within the explicitly recorded parent scope." } ] }, { "id": "review-nascompares-unas-4", "title": "NAS Compares UniFi UNAS 4 review", "url": "https://nascompares.com/review/unifi-unas-4-review/", "kind": "review", "checkedAt": "2026-09-11", "locator": "Parent read full available original written article via web; figure access limits recorded in audit. ", "readAction": "opened", "readScope": "Parent independently read full available original written article; UNAS 4; mixed Windows file transfers including a 50 GB copy over native 2.5GbE, NVMe cache compared enabled/disabled. Power with four HDDs and two NVMe, plus empty chassis. Exact drive MPNs, RAID, firmware and client NIC are not specified in the available prose. Full written original article read by parent; ten attempted performance/power figures remained blocked, so recorded values are the author’s prose readings. Cache effect is workload-specific; no matched raw numerical cache-on/off dataset was recovered. Exact RAID, firmware, drive models and measurement instruments are not disclosed. August follow-up is the same test family.", "readingActorId": "current-codex-root", "checkedOn": "2026-09-11", "materials": [ { "sha256": "22855c9d5463351cb6df5655ded89addb5d7e1adba10f1c086631f794c5189f0", "mimeType": "text/markdown", "sourceUrl": "local-research-notes", "description": "Tool-captured facts 2026-09-11" }, { "sha256": "8e3ffb33b6046bc077d2d0f54c9aad61bbbe74da488d05e468142e2c44bbb511", "mimeType": "application/json", "sourceUrl": "https://nascompares.com/review/unifi-unas-4-review/", "description": "Original material read within the explicitly recorded parent scope." }, { "sha256": "4f1f6524eb937e6d156ca3fc16d2c3284cd2c50324674b884e2e7e63b0a9401e", "mimeType": "application/json", "sourceUrl": "https://nascompares.com/review/unifi-unas-4-review/", "description": "Original material read within the explicitly recorded parent scope." } ] }, { "id": "review-nascompares-year-later", "title": "NAS Compares UNAS 2 and UNAS 4 one year later", "url": "https://nascompares.com/2026/08/26/unifi-unas-2-and-unas-4-one-year-later/", "kind": "review", "checkedAt": "2026-09-11", "locator": "Parent read full available original written article via web; figure access limits recorded in audit. Follow-up continues the same original test family.", "readAction": "opened", "readScope": "Full available original follow-up article read. Same reviewer/sample test family; no independent new measurement group. Third-party USB-NIC/photo-backup reports are not original experiments.", "readingActorId": "current-codex-root", "checkedOn": "2026-09-11", "materials": [ { "sha256": "22855c9d5463351cb6df5655ded89addb5d7e1adba10f1c086631f794c5189f0", "mimeType": "text/markdown", "sourceUrl": "local-research-notes", "description": "Tool-captured facts 2026-09-11" }, { "sha256": "0d0f20967d2ddb841e3af7ef08d827798009d6a694ae6aa653c6beed47720432", "mimeType": "application/json", "sourceUrl": "https://nascompares.com/2026/08/26/unifi-unas-2-and-unas-4-one-year-later/", "description": "Original material read within the explicitly recorded parent scope." } ] }, { "id": "review-dongknows-unas-4-first-look", "title": "Dong Knows UNAS 4 first take", "url": "https://dongknows.com/ubiquiti-unas-4-review/", "kind": "review", "checkedAt": "2026-09-11", "locator": "Full original preliminary article read; no original throughput experiment. Daily scheduling assertions are historical.", "readAction": "opened", "readScope": "Full original preliminary article body read, including hardware comparison, application limits and conclusion. No original throughput measurements; historical scheduling caps do not establish current limits.", "readingActorId": "current-codex-root", "checkedOn": "2026-09-11", "materials": [ { "sha256": "22855c9d5463351cb6df5655ded89addb5d7e1adba10f1c086631f794c5189f0", "mimeType": "text/markdown", "sourceUrl": "local-research-notes", "description": "Tool-captured facts 2026-09-11" }, { "sha256": "a52f40334bf818cc84026cf26ee9046dcaba7b43bf7b2ea5fb342db08259833a", "mimeType": "application/json", "sourceUrl": "https://dongknows.com/ubiquiti-unas-4-review/", "description": "Original material read within the explicitly recorded parent scope." }, { "sha256": "a8734cafd88458f745b78176841314f6379a3f11a3d41c2ba99740d9ce95b461", "mimeType": "application/json", "sourceUrl": "https://dongknows.com/ubiquiti-unas-4-review/", "description": "Original material read within the explicitly recorded parent scope." }, { "sha256": "063d936bfba90b6c567c757dfae629a644676bfd40707a2f6944887688668bd6", "mimeType": "application/json", "sourceUrl": "https://dongknows.com/ubiquiti-unas-4-review/", "description": "Original material read within the explicitly recorded parent scope." } ] }, { "id": "merchant-direct-current", "title": "Ubiquiti US Store UNAS-4 offer", "url": "https://store.ui.com/us/en/products/unas-4", "kind": "merchant", "checkedAt": "2026-09-11T09:52:09.000Z", "locator": "UNAS-4-W Available $408 with surcharge", "readAction": "opened", "readScope": "Parent read saved exact product variants, SKU, color, stock status, base and surcharge-inclusive price and visible buy box; original observation date retained, no fresh-fetch claim.", "readingActorId": "current-codex-root", "observedAt": "2026-09-11T09:52:09.000Z", "checkedOn": "2026-09-11", "materials": [ { "sha256": "5809a12c53e3b08cc8d13bdeacd40112a46674ea803b76791bf9ce356f1a881c", "mimeType": "text/html", "sourceUrl": "https://store.ui.com/us/en/products/unas-4", "description": "US store HTML" }, { "sha256": "82cf26690b970b7f3102ea155b9f4110fee5c53d53233193e72f2c6f4d9b6e16", "mimeType": "application/json", "sourceUrl": "https://store.ui.com/us/en/products/unas-4", "description": "Original material read within the explicitly recorded parent scope." }, { "sha256": "362f4d96f218b300ea22421b1fcf98251c7d0f3c98278df30e314032b133f51d", "mimeType": "text/plain", "sourceUrl": "https://store.ui.com/us/en/products/unas-4", "description": "Original material read within the explicitly recorded parent scope." } ] }, { "id": "merchant-flytec-unas-4", "title": "Flytec UNAS-4-W", "url": "https://flyteccomputers.com/ubiquiti-unas-4-w", "kind": "merchant", "checkedAt": "2026-09-11T09:55:00.000Z", "locator": "schema.org Offer price 379 USD, NewCondition, OutOfStock, sku UNAS-4-W", "readAction": "opened", "readScope": "Parent read exact MPN, condition, displayed price and order/lead-time terms in saved primary page. Flytec JSON-LD OutOfStock, quote-only restriction and separate surcharge qualified; no checkout.", "readingActorId": "current-codex-root", "observedAt": "2026-09-11T09:55:00.000Z", "checkedOn": "2026-09-11", "materials": [ { "sha256": "9803b1d979fac7354698edcc82f9b23cf4f6274ca51410e28ccb69dcc731191b", "mimeType": "text/html", "sourceUrl": "https://flyteccomputers.com/ubiquiti-unas-4-w", "description": "Flytec PDP" } ] }, { "id": "merchant-microcom-unas-4", "title": "Microcom UNAS-4-B", "url": "https://www.microcom.us/unas4b.html", "kind": "merchant", "checkedAt": "2026-09-11T09:55:00.000Z", "locator": "Item# UNAS-4-B $379.00; Usually ships in 6-8 weeks", "readAction": "opened", "readScope": "Parent read exact MPN, condition, displayed price and order/lead-time terms in saved primary page. Flytec JSON-LD OutOfStock, quote-only restriction and separate surcharge qualified; no checkout.", "readingActorId": "current-codex-root", "observedAt": "2026-09-11T09:55:00.000Z", "checkedOn": "2026-09-11", "materials": [ { "sha256": "eca49ce2a9bc8d06c79012cbd9d18f83390ea80d8ccec58831edcac10a976461", "mimeType": "text/html", "sourceUrl": "https://www.microcom.us/unas4b.html", "description": "Microcom PDP" } ] }, { "id": "official-raid", "title": "Ubiquiti storage protection and RAID", "url": "https://help.ui.com/hc/en-us/articles/12395353544727-Storage-Protection-and-Data-Redundancy-in-UniFi-RAID", "kind": "official", "checkedAt": "2026-09-11", "locator": "For UNAS: single pool/group, drive counts and RAID footnotes; Pro-only conversion is not generalized.", "readAction": "opened", "readScope": "Parent read full relevant official help article body and tables/footnotes; model-specific scope separated from Pro/ENAS/Protect. Cache exclusions and RAID minimum-disk footnotes retained.", "readingActorId": "current-codex-root", "checkedOn": "2026-09-11", "materials": [ { "sha256": "71957223e1cc0b889e099d8a2424d1ac9ecb1999c32c50e569dc78aab363f035", "mimeType": "application/json", "sourceUrl": "https://help.ui.com/hc/en-us/articles/12395353544727-Storage-Protection-and-Data-Redundancy-in-UniFi-RAID", "description": "Original material read within the explicitly recorded parent scope." }, { "sha256": "4f1f6524eb937e6d156ca3fc16d2c3284cd2c50324674b884e2e7e63b0a9401e", "mimeType": "application/json", "sourceUrl": "https://help.ui.com/hc/en-us/articles/12395353544727-Storage-Protection-and-Data-Redundancy-in-UniFi-RAID", "description": "Original material read within the explicitly recorded parent scope." }, { "sha256": "a8734cafd88458f745b78176841314f6379a3f11a3d41c2ba99740d9ce95b461", "mimeType": "application/json", "sourceUrl": "https://help.ui.com/hc/en-us/articles/12395353544727-Storage-Protection-and-Data-Redundancy-in-UniFi-RAID", "description": "Original material read within the explicitly recorded parent scope." }, { "sha256": "063d936bfba90b6c567c757dfae629a644676bfd40707a2f6944887688668bd6", "mimeType": "application/json", "sourceUrl": "https://help.ui.com/hc/en-us/articles/12395353544727-Storage-Protection-and-Data-Redundancy-in-UniFi-RAID", "description": "Original material read within the explicitly recorded parent scope." } ] }, { "id": "official-cache", "title": "Ubiquiti adding SSD cache on UNAS/ENAS", "url": "https://help.ui.com/hc/en-us/articles/34801264699927-Adding-SSD-Cache-on-UNAS-ENAS", "kind": "official", "checkedAt": "2026-09-11", "locator": "UNAS 4 explicitly included; assignment, exclusion and failure behavior.", "readAction": "opened", "readScope": "Parent read full relevant official help article body and tables/footnotes; model-specific scope separated from Pro/ENAS/Protect. Cache exclusions and RAID minimum-disk footnotes retained.", "readingActorId": "current-codex-root", "checkedOn": "2026-09-11", "materials": [ { "sha256": "71957223e1cc0b889e099d8a2424d1ac9ecb1999c32c50e569dc78aab363f035", "mimeType": "application/json", "sourceUrl": "https://help.ui.com/hc/en-us/articles/34801264699927-Adding-SSD-Cache-on-UNAS-ENAS", "description": "Original material read within the explicitly recorded parent scope." }, { "sha256": "4f1f6524eb937e6d156ca3fc16d2c3284cd2c50324674b884e2e7e63b0a9401e", "mimeType": "application/json", "sourceUrl": "https://help.ui.com/hc/en-us/articles/34801264699927-Adding-SSD-Cache-on-UNAS-ENAS", "description": "Original material read within the explicitly recorded parent scope." }, { "sha256": "a8734cafd88458f745b78176841314f6379a3f11a3d41c2ba99740d9ce95b461", "mimeType": "application/json", "sourceUrl": "https://help.ui.com/hc/en-us/articles/34801264699927-Adding-SSD-Cache-on-UNAS-ENAS", "description": "Original material read within the explicitly recorded parent scope." }, { "sha256": "063d936bfba90b6c567c757dfae629a644676bfd40707a2f6944887688668bd6", "mimeType": "application/json", "sourceUrl": "https://help.ui.com/hc/en-us/articles/34801264699927-Adding-SSD-Cache-on-UNAS-ENAS", "description": "Original material read within the explicitly recorded parent scope." } ] }, { "id": "official-storage-compatibility", "title": "UniFi storage requirements and compatibility", "url": "https://help.ui.com/hc/en-us/articles/360037340954-UniFi-Storage-Requirements-and-Compatibility", "kind": "official", "checkedAt": "2026-09-11", "locator": "NVMe row explicitly names UNAS-4; PCIe Gen3 x2. Generic rack-console SATA rows are not model-qualified UNAS 4 lists.", "readAction": "opened", "readScope": "Parent read full relevant official help article body and tables/footnotes; model-specific scope separated from Pro/ENAS/Protect. Cache exclusions and RAID minimum-disk footnotes retained.", "readingActorId": "current-codex-root", "checkedOn": "2026-09-11", "materials": [ { "sha256": "71957223e1cc0b889e099d8a2424d1ac9ecb1999c32c50e569dc78aab363f035", "mimeType": "application/json", "sourceUrl": "https://help.ui.com/hc/en-us/articles/360037340954-UniFi-Storage-Requirements-and-Compatibility", "description": "Original material read within the explicitly recorded parent scope." }, { "sha256": "4f1f6524eb937e6d156ca3fc16d2c3284cd2c50324674b884e2e7e63b0a9401e", "mimeType": "application/json", "sourceUrl": "https://help.ui.com/hc/en-us/articles/360037340954-UniFi-Storage-Requirements-and-Compatibility", "description": "Original material read within the explicitly recorded parent scope." }, { "sha256": "a8734cafd88458f745b78176841314f6379a3f11a3d41c2ba99740d9ce95b461", "mimeType": "application/json", "sourceUrl": "https://help.ui.com/hc/en-us/articles/360037340954-UniFi-Storage-Requirements-and-Compatibility", "description": "Original material read within the explicitly recorded parent scope." }, { "sha256": "063d936bfba90b6c567c757dfae629a644676bfd40707a2f6944887688668bd6", "mimeType": "application/json", "sourceUrl": "https://help.ui.com/hc/en-us/articles/360037340954-UniFi-Storage-Requirements-and-Compatibility", "description": "Original material read within the explicitly recorded parent scope." } ] }, { "id": "review-coywolf", "title": "Coywolf UNAS 4 home deployment", "url": "https://coywolf.com/reviews/products/i-switched-from-synology-to-the-unas-4-for-home-file-sharing-and-backups-and-have-zero-regrets/", "kind": "review", "checkedAt": "2026-09-11", "locator": "Jon Henshaw, published March 29 / updated June 14, 2026; original deployment and backup experience. Figures not independently recovered.", "readAction": "opened", "readScope": "Parent independently read full available original written article; UNAS 4; four reused WD Red SATA SSDs in RAID 10, two 500 GB NVMe installed, 90W injector, Flex Mini 2.5G switch and Dream Router 7. Firmware unspecified. No controlled restore, endurance, acoustic or throughput test. Time Machine illustration identifies UNAS-2, so it does not verify UNAS 4 restore. Installed NVMe is not proof of effective caching: current official instructions exclude SSD pools. RAID 10 cannot survive arbitrary two-drive failures. Affiliate links present; sample/payment disclosure not established. Original figures were not recovered; captions are not visual inspection.", "readingActorId": "current-codex-root", "checkedOn": "2026-09-11", "materials": [ { "sha256": "a52f40334bf818cc84026cf26ee9046dcaba7b43bf7b2ea5fb342db08259833a", "mimeType": "application/json", "sourceUrl": "https://coywolf.com/reviews/products/i-switched-from-synology-to-the-unas-4-for-home-file-sharing-and-backups-and-have-zero-regrets/", "description": "Original material read within the explicitly recorded parent scope." } ] } ], "coverage": { "productId": "ubiquiti-unas-4", "roundStatus": "研究与独立复核完成，证据缺口明确保留", "reviewCount": 2, "offerCount": 3, "dimensions": [ { "id": "identity", "status": "已核实", "evidence": "UNAS-4 exact model and color variants.", "evidenceIds": [ "ev-techspecs", "ev-store" ], "gaps": "No borrowing from UNAS Pro.", "thisRound": "Grok 4.6 research/self-check; GPT-6 (Codex) independent original-source review and correction.", "reused": "Original researcher draft separately preserved.", "nextStep": "" }, { "id": "specifications", "status": "已核实", "evidence": "62 specification/support rows and complete manufacturer model-table fields.", "evidenceIds": [ "ev-techspecs" ], "gaps": "ECC and current installed firmware not established.", "thisRound": "Grok 4.6 research/self-check; GPT-6 (Codex) independent original-source review and correction.", "reused": "Original researcher draft separately preserved.", "nextStep": "" }, { "id": "software-limits", "status": "部分覆盖", "evidence": "Current official model table and RAID/cache help reconciled with dated reviews.", "evidenceIds": [ "ev-techspecs" ], "gaps": "No current endpoint restore validation; third-party issue reports not original measurements.", "thisRound": "Grok 4.6 research/self-check; GPT-6 (Codex) independent original-source review and correction.", "reused": "Original researcher draft separately preserved.", "nextStep": "" }, { "id": "direct-measurement", "status": "部分覆盖", "evidence": "2 distinct original test/use records; follow-up not double-counted.", "evidenceIds": [ "parent-nascompares-unas-4", "parent-coywolf-unas-4" ], "gaps": "NAS Compares figures blocked; exact workload and acoustic conditions incomplete.", "thisRound": "Grok 4.6 research/self-check; GPT-6 (Codex) independent original-source review and correction.", "reused": "Original researcher draft separately preserved.", "nextStep": "" }, { "id": "related-experience", "status": "部分覆盖", "evidence": "Dong Knows first look; year-later follow-up.", "evidenceIds": [ "ev-dongknows-4", "ev-year-later-4" ], "gaps": "UGREEN comparison not treated as UNAS 4 speed.", "thisRound": "Grok 4.6 research/self-check; GPT-6 (Codex) independent original-source review and correction.", "reused": "Original researcher draft separately preserved.", "nextStep": "" }, { "id": "us-new-pdp", "status": "部分覆盖", "evidence": "Dated official and exact reseller primary offers.", "evidenceIds": [ "ev-store", "ev-flytec" ], "gaps": "Shipping, authorized-channel eligibility and surcharge total need checkout/quote verification.", "thisRound": "Grok 4.6 research/self-check; GPT-6 (Codex) independent original-source review and correction.", "reused": "Original researcher draft separately preserved.", "nextStep": "" }, { "id": "buying-judgment", "status": "已核实", "evidence": "Choose UNAS 4 when you need four-bay RAID 5/6/10 and optional NVMe cache in a PoE+++ desktop, and you already accept UniFi Drive’s storage-only OS. NAS Compares measured mixed transfers roughly 180–250 MB/s on 2.5GbE and ~46 W idle with four HDDs plus two NVMe. The extra bays outrun the single NIC; M.2 is cache-only and trays are sold separately. Buy UNAS 2 for simpler RAID 1, or a 10GbE UNAS Pro if the desk form factor is optional.", "evidenceIds": [ "ev-techspecs", "ev-nascompares-4" ], "gaps": "Evidence limits explicit.", "thisRound": "Grok 4.6 research/self-check; GPT-6 (Codex) independent original-source review and correction.", "reused": "Original researcher draft separately preserved.", "nextStep": "" }, { "id": "video", "status": "尚未研究", "evidence": "Written articles and individually captured figures only.", "evidenceIds": [], "gaps": "No full video inspection.", "thisRound": "Grok 4.6 research/self-check; GPT-6 (Codex) independent original-source review and correction.", "reused": "Original researcher draft separately preserved.", "nextStep": "" } ], "roundNote": "completed work != full data coverage. Structural validate is not independent approval. Day precision 2026-09-11. fetch_content SSRF-blocked ui.com; curl used." }, "retiredRecords": [ { "recordType": "offer", "id": "direct-current-unknown-2026-09-10", "reason": "Same Ubiquiti PDP reread with numeric surcharge price for Available white variant." }, { "recordType": "review", "reason": "Same original experiment follow-up; retained as cited context, not an independent measurement sample.", "records": [ { "id": "nascompares-unas-4-year-later", "title": "NAS Compares UNAS 2 / UNAS 4 one year later (UNAS 4 unit)", "publisher": "NAS Compares", "author": "Rob Andrews", "publishedAt": "2026-08-26", "updatedAt": "2026-08-26", "url": "https://nascompares.com/2026/08/26/unifi-unas-2-and-unas-4-one-year-later/", "type": "article", "originalTestGroup": "nascompares-desktop-year-later-unas-4", "testedConfiguration": "UNAS 4 operated ~8 months; Drive 4.3.10 / NAS OS 5.1.30 as of August 2026 in the article.", "applicability": "Long-term UNAS 4 software, surcharge, cache-only M.2 and USB-NIC notes. Not new FIO charts.", "selectionReason": "Follow-up on the four-bay desktop, including $408 surcharge math and cache limits.", "findings": [ { "text": "US store surcharge $379 → $408 without extra RAM. Two M.2 trays ~$19 each; official 1 TB cache module ~$390.", "locator": "Surcharges and M.2 extras" }, { "text": "M.2 remains cache (2 TiB max/slot); large sequential writes may bypass cache per Ubiquiti.", "locator": "Hardware expansion ceiling" }, { "text": "Same USB Realtek 2.5GbE stack as UNAS 2; some UNAS 4 owners reported drops during heavy backup.", "locator": "Internal USB 2.5GbE" } ], "measurements": [], "limitations": [ "Live page 403; search extract used. Owner NIC stories are not a defect rate." ], "sourceId": "review-nascompares-year-later" } ] } ], "originalMaterial": { "status": "per-source-records", "note": "Available original captures are retained locally with SHA-256. Public records contain source URLs and locators; they do not reproduce full third-party content. An absent capture is not a claim of a saved original." } }