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      "evidenceChecks": [
        "Parent fully read exact-model official table and available model prose/FAQ, and separately read all selected storefront variant fields. Preserve published rows and conflicts; rates/capacity/power are manufacturer claims. ",
        "Parent read the complete model/architecture support matrix and relevant installation sections; not claiming every intervening generic guide paragraph. DH2300 unsupported, DH4300 Plus ARM64 supported, DXP x86 supported.",
        "Parent read full available official software page. Named model support is distinct from installed build and benchmark capacity. Plex guide describes Intel Quick Sync graphics access/licensing; it is not proof of a working AMD or ARM hardware-transcoding workload.",
        "Parent fully read the available original article prose and tables. Only individually listed figures were visually inspected; no full video review. DXP2800 GT with an unspecified SATA HDD; 10GbE negotiation failed in the reviewer’s SFP-to-RJ45 path, then a 2.5GbE fallback was used. U.2 untested. Adopted conclusions: Large transfers reached 280–290 MB/s on the fallback 2.5GbE connection. The adapter was the author’s suspected cause of negotiation failure, not a proven NAS defect. Many power and transcoding examples in the article belong to the author’s DXP4800 Plus. They do not establish GT power or Plex stream capacity. Boundaries: UGREEN-supplied sample. Author’s daily driver is DXP4800 Plus, sometimes on Unraid; those Plus numbers are not DXP2800 GT measurements. No isolated 10GbE MB/s table extracted for the two-bay GT. GT power, temperature and fan tests were explicitly pending. Stock RAM is non-ECC; no ECC or U.2 performance test.",
        "Parent fully read the available original article prose and tables. Only individually listed figures were visually inspected; no full video review. UGREEN sent both DXP2800 GT and DXP4800 GT. Comparison of bays, ports, RAID options, and quoted idle/active power. Adopted conclusions: Both supplied GT models were handled and compared. The two-bay unit trades extra bays, a second 10GbE port and RAID 5/6/10 for a smaller enclosure. Boundaries: UGREEN-sent samples. Affiliate commission disclosed. Not a 10GbE iperf lab for the two-bay unit. Do not assign DXP4800 GT dual-10GbE copy rates to this SKU. Power table and prose conflict and are not established as original measurements; no power figure adopted.",
        "Parent read full public official-warranty page. Compatibility means basic tested interoperability, unlisted does not automatically mean incompatible; warranty periods distinguish model, main device and accessories; download packages require exact model selection. No account or serial-number query performed.",
        "Parent read full public official-downloads page. Compatibility means basic tested interoperability, unlisted does not automatically mean incompatible; warranty periods distinguish model, main device and accessories; download packages require exact model selection. No account or serial-number query performed.",
        "Parent read full public official-compatibility page. Compatibility means basic tested interoperability, unlisted does not automatically mean incompatible; warranty periods distinguish model, main device and accessories; download packages require exact model selection. No account or serial-number query performed.",
        "Parent fully read the available original article prose and tables. Only individually listed figures were visually inspected; no full video review. DXP2800 GT; UGOS 1.15.20.0004; two 20TB IronWolf Pro HDDs RAID 1; two 480GB IronWolf 510 SSDs as RAID 1 volume or read/write cache; 10GbE. Adopted conclusions: SSD cache helped some repeated reads but did not improve every workload. Bare-HDD and SSD results must be kept separate. No actual ECC-module or U.2 performance test was published. Missing shared-folder encryption describes this firmware; a later PCWelt account reports it available. Boundaries: No full original video review; no universal stream-count or reliability guarantee. Loan samples; no influence or publication obligation disclosed. Test client beyond network link not established in inspected pages."
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      "id": "official-product",
      "title": "UGREEN DXP2800 GT product page",
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      "locator": "Same PDP reread",
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      "materials": []
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      "url": "https://support.ugnas.com/detail/article/en-US/915",
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      "checkedAt": "2026-09-10T01:13:28.378Z",
      "locator": "Supported Products → DXP/DH Series; Version Information; exact product Specs → Model / CPU / Operating System",
      "readAction": "blocked",
      "readScope": "SPA shell 833 bytes",
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          "mimeType": "text/html",
          "sourceUrl": "https://support.ugnas.com/detail/article/en-US/915",
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      "checkedAt": "2026-09-10T01:13:30.101Z",
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          "sourceUrl": "https://support.ugnas.com/detail/article/en-US/314",
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      "checkedAt": "2026-09-10T01:13:28.510Z",
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      "checkedAt": "2026-09-10T01:13:28.554Z",
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      "checkedAt": "2026-09-11T09:21:39Z",
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      "readAction": "opened",
      "readScope": "Parent fully read exact-model official table and available model prose/FAQ, and separately read all selected storefront variant fields. Preserve published rows and conflicts; rates/capacity/power are manufacturer claims. ",
      "readingActorId": "current-codex-root",
      "checkedOn": "2026-09-11",
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      "kind": "merchant",
      "checkedAt": "2026-09-11T09:21:39Z",
      "locator": "Shopify variant NASync DXP2800GT sku 16050 price 42999 available",
      "readAction": "opened",
      "readScope": "variant 16050 $429.99",
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      "readAction": "reused",
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      "readingActorId": "b24-grok",
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      "checkedAt": "2026-09-11T09:22:12Z",
      "locator": "DXP2800 GT listed x86-64/AMD64",
      "readAction": "opened",
      "readScope": "Parent read the complete model/architecture support matrix and relevant installation sections; not claiming every intervening generic guide paragraph. DH2300 unsupported, DH4300 Plus ARM64 supported, DXP x86 supported.",
      "readingActorId": "current-codex-root",
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      "kind": "official",
      "checkedAt": "2026-09-11T09:22:12Z",
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      "readAction": "opened",
      "readScope": "Parent read full available official software page. Named model support is distinct from installed build and benchmark capacity. Plex guide describes Intel Quick Sync graphics access/licensing; it is not proof of a working AMD or ARM hardware-transcoding workload.",
      "readingActorId": "current-codex-root",
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      "kind": "review",
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      "locator": "James Smythe 8 Jun 2026; two-bay GT vs four-bay Plus; UGREEN sample",
      "readAction": "opened",
      "readScope": "Parent fully read the available original article prose and tables. Only individually listed figures were visually inspected; no full video review. DXP2800 GT with an unspecified SATA HDD; 10GbE negotiation failed in the reviewer’s SFP-to-RJ45 path, then a 2.5GbE fallback was used. U.2 untested. Adopted conclusions: Large transfers reached 280–290 MB/s on the fallback 2.5GbE connection. The adapter was the author’s suspected cause of negotiation failure, not a proven NAS defect. Many power and transcoding examples in the article belong to the author’s DXP4800 Plus. They do not establish GT power or Plex stream capacity. Boundaries: UGREEN-supplied sample. Author’s daily driver is DXP4800 Plus, sometimes on Unraid; those Plus numbers are not DXP2800 GT measurements. No isolated 10GbE MB/s table extracted for the two-bay GT. GT power, temperature and fan tests were explicitly pending. Stock RAM is non-ECC; no ECC or U.2 performance test.",
      "readingActorId": "current-codex-root",
      "checkedOn": "2026-09-11",
      "materials": [
        {
          "sha256": "74f89b8a0abd5517589c8f2c455840ea804140b8f04e526be1ba4bdb6becbcab",
          "mimeType": "text/html",
          "sourceUrl": "https://mightygadget.com/ugreen-dxp2800-gt-nas-review/",
          "description": "MG"
        }
      ]
    },
    {
      "id": "toms-gt",
      "title": "Ugreen DXP2800 GT vs DXP4800 GT",
      "url": "https://www.tomsguide.com/computing/ugreen-dxp2800gt-vs-ugreen-dxp4800gt",
      "kind": "review",
      "checkedAt": "2026-09-11T09:24:17Z",
      "locator": "Anthony Spadafora 3 Aug 2026; UGREEN sent both GT units; affiliate",
      "readAction": "opened",
      "readScope": "Parent fully read the available original article prose and tables. Only individually listed figures were visually inspected; no full video review. UGREEN sent both DXP2800 GT and DXP4800 GT. Comparison of bays, ports, RAID options, and quoted idle/active power. Adopted conclusions: Both supplied GT models were handled and compared. The two-bay unit trades extra bays, a second 10GbE port and RAID 5/6/10 for a smaller enclosure. Boundaries: UGREEN-sent samples. Affiliate commission disclosed. Not a 10GbE iperf lab for the two-bay unit. Do not assign DXP4800 GT dual-10GbE copy rates to this SKU. Power table and prose conflict and are not established as original measurements; no power figure adopted.",
      "readingActorId": "current-codex-root",
      "checkedOn": "2026-09-11",
      "materials": [
        {
          "sha256": "9b41033a5f2f6bf12e76f0b7399734e8824239c9e2d665b6d679eadae25cb95a",
          "mimeType": "text/html",
          "sourceUrl": "https://www.tomsguide.com/computing/ugreen-dxp2800gt-vs-ugreen-dxp4800gt",
          "description": "Toms"
        }
      ]
    },
    {
      "id": "official-warranty",
      "title": "UGREEN NAS Warranty",
      "url": "https://ai.ugreen.com/pages/warranty",
      "kind": "official",
      "checkedAt": "2026-09-11T14:05:46.827877+00:00",
      "locator": "Complete page and published table / FAQ; dynamic per-model results not loaded.",
      "readAction": "opened",
      "readScope": "Parent read full public official-warranty page. Compatibility means basic tested interoperability, unlisted does not automatically mean incompatible; warranty periods distinguish model, main device and accessories; download packages require exact model selection. No account or serial-number query performed.",
      "readingActorId": "current-codex-root",
      "checkedOn": "2026-09-11",
      "materials": [
        {
          "sha256": "d0208613fc73742fad48ec6e6ec0bebdaa1c71ae3256b248c47d548da5876e5d",
          "mimeType": "text/html",
          "sourceUrl": "https://ai.ugreen.com/pages/warranty",
          "description": "Parent read full publicly available policy text and tables; dynamic model-specific results not loaded."
        }
      ]
    },
    {
      "id": "official-downloads",
      "title": "UGREEN NAS Downloads",
      "url": "https://ai.ugreen.com/pages/downloads",
      "kind": "official",
      "checkedAt": "2026-09-11T14:05:46.827877+00:00",
      "locator": "Complete page and published table / FAQ; dynamic per-model results not loaded.",
      "readAction": "opened",
      "readScope": "Parent read full public official-downloads page. Compatibility means basic tested interoperability, unlisted does not automatically mean incompatible; warranty periods distinguish model, main device and accessories; download packages require exact model selection. No account or serial-number query performed.",
      "readingActorId": "current-codex-root",
      "checkedOn": "2026-09-11",
      "materials": [
        {
          "sha256": "32118a3774da391d20028067c2719ba2878d238c83a952082b142d022eebbf26",
          "mimeType": "text/html",
          "sourceUrl": "https://ai.ugreen.com/pages/downloads",
          "description": "Parent read full publicly available policy text and tables; dynamic model-specific results not loaded."
        }
      ]
    },
    {
      "id": "official-compatibility",
      "title": "UGREEN NAS Compatibility",
      "url": "https://ai.ugreen.com/pages/compatibility",
      "kind": "official",
      "checkedAt": "2026-09-11T14:05:46.827877+00:00",
      "locator": "Complete page and published table / FAQ; dynamic per-model results not loaded.",
      "readAction": "opened",
      "readScope": "Parent read full public official-compatibility page. Compatibility means basic tested interoperability, unlisted does not automatically mean incompatible; warranty periods distinguish model, main device and accessories; download packages require exact model selection. No account or serial-number query performed.",
      "readingActorId": "current-codex-root",
      "checkedOn": "2026-09-11",
      "materials": [
        {
          "sha256": "9bda245e98e9833eb6b2308bac91ab45959a200bac315fb832218fb394e12306",
          "mimeType": "text/html",
          "sourceUrl": "https://ai.ugreen.com/pages/compatibility",
          "description": "Parent read full publicly available policy text and tables; dynamic model-specific results not loaded."
        }
      ]
    },
    {
      "id": "cb-gt-parent-2800",
      "title": "UGREEN DXP4800 GT and DXP2800 GT tested",
      "url": "https://www.computerbase.de/artikel/storage/ugreen-dxp4800-gt-dxp2800-gt-test.97532/",
      "kind": "review",
      "checkedAt": "2026-09-11T14:05:46.827877+00:00",
      "locator": "Full saved original article; inspected charts identified separately in audit.",
      "readAction": "opened",
      "readScope": "Parent fully read the available original article prose and tables. Only individually listed figures were visually inspected; no full video review. DXP2800 GT; UGOS 1.15.20.0004; two 20TB IronWolf Pro HDDs RAID 1; two 480GB IronWolf 510 SSDs as RAID 1 volume or read/write cache; 10GbE. Adopted conclusions: SSD cache helped some repeated reads but did not improve every workload. Bare-HDD and SSD results must be kept separate. No actual ECC-module or U.2 performance test was published. Missing shared-folder encryption describes this firmware; a later PCWelt account reports it available. Boundaries: No full original video review; no universal stream-count or reliability guarantee. Loan samples; no influence or publication obligation disclosed. Test client beyond network link not established in inspected pages.",
      "readingActorId": "current-codex-root",
      "checkedOn": "2026-09-11",
      "materials": [
        {
          "sha256": "f5b463bb829a68a58c5c5422e9f8ab03f5c23285d629922c32766a7286f1554d",
          "mimeType": "text/html",
          "sourceUrl": "https://www.computerbase.de/artikel/storage/ugreen-dxp4800-gt-dxp2800-gt-test.97532/",
          "description": "Parent read this original article page or individually viewed this original figure."
        },
        {
          "sha256": "b10f5f522739880f0c66468e20dfae9007ae1ec5c06254b7bb2651d14a4a95b9",
          "mimeType": "text/html",
          "sourceUrl": "https://www.computerbase.de/artikel/storage/ugreen-dxp4800-gt-dxp2800-gt-test.97532/seite-2",
          "description": "Parent read this original article page or individually viewed this original figure."
        },
        {
          "sha256": "f15922bfbf6f4e744a07360593b888666926aa0ae236515938eb66433ac024fb",
          "mimeType": "text/html",
          "sourceUrl": "https://www.computerbase.de/artikel/storage/ugreen-dxp4800-gt-dxp2800-gt-test.97532/seite-3",
          "description": "Parent read this original article page or individually viewed this original figure."
        },
        {
          "sha256": "dc100343dffe5e8a4e780c220c667a2b965e48a41af3f36244b624cf4a2a1b67",
          "mimeType": "application/json",
          "sourceUrl": "https://www.computerbase.de/artikel/storage/ugreen-dxp4800-gt-dxp2800-gt-test.97532/",
          "description": "Parent read all own-model chart rows with display units and workload group labels."
        }
      ]
    }
  ],
  "coverage": {
    "productId": "ugreen-nasync-dxp2800gt",
    "roundStatus": "研究与独立复核完成，证据缺口明确保留",
    "reviewCount": 3,
    "offerCount": 1,
    "dimensions": [
      {
        "id": "identity",
        "status": "已核实",
        "evidence": "16050; current exact-model table and selected manufacturer variant checked.",
        "evidenceIds": [
          "ev-official"
        ],
        "gaps": "Regional review SKUs and any tested-identity conflicts remain explicit.",
        "thisRound": "Grok 4.6 research/self-check; GPT-6 (Codex) original-source review and corrections.",
        "reused": "Researcher input preserved separately.",
        "nextStep": ""
      },
      {
        "id": "specifications",
        "status": "已核实",
        "evidence": "70 rows with complete available exact-model official table and support boundaries.",
        "evidenceIds": [
          "ev-official"
        ],
        "gaps": "Official table conflicts are preserved and qualified; no invented model limits.",
        "thisRound": "Grok 4.6 research/self-check; GPT-6 (Codex) original-source review and corrections.",
        "reused": "Researcher input preserved separately.",
        "nextStep": ""
      },
      {
        "id": "software-limits",
        "status": "部分覆盖",
        "evidence": "Model-specific Docker/VM matrix and available primary guides; exact tested builds distinguish historical limitations.",
        "evidenceIds": [
          "ev-docker"
        ],
        "gaps": "Shipping build, full endpoint recovery and enforcement behavior remain unverified.",
        "thisRound": "Grok 4.6 research/self-check; GPT-6 (Codex) original-source review and corrections.",
        "reused": "Researcher input preserved separately.",
        "nextStep": ""
      },
      {
        "id": "direct-measurement",
        "status": "部分覆盖",
        "evidence": "3 original review records; numerical results retain configuration, units and limitations.",
        "evidenceIds": [
          "parent-mightygadget-gt",
          "parent-tomsguide-gt",
          "parent-cb-gt-parent-2800"
        ],
        "gaps": "No standardized current-firmware benchmark or universal application capacity guarantee.",
        "thisRound": "Grok 4.6 research/self-check; GPT-6 (Codex) original-source review and corrections.",
        "reused": "Researcher input preserved separately.",
        "nextStep": ""
      },
      {
        "id": "related-experience",
        "status": "部分覆盖",
        "evidence": "Different model/bay count, Pro/Plus identity and older software are separated; no numeric cross-model extrapolation.",
        "evidenceIds": [
          "ev-toms"
        ],
        "gaps": "",
        "thisRound": "Grok 4.6 research/self-check; GPT-6 (Codex) original-source review and corrections.",
        "reused": "Researcher input preserved separately.",
        "nextStep": ""
      },
      {
        "id": "us-new-pdp",
        "status": "部分覆盖",
        "evidence": "UGREEN $429.99 (2026-09-11)",
        "evidenceIds": [
          "ev-official"
        ],
        "gaps": "Blocked merchant rechecks retain historical observations; shipping/tax/checkout eligibility not confirmed.",
        "thisRound": "Grok 4.6 research/self-check; GPT-6 (Codex) original-source review and corrections.",
        "reused": "Researcher input preserved separately.",
        "nextStep": ""
      },
      {
        "id": "buying-judgment",
        "status": "已核实",
        "evidence": "DXP2800 GT is a compact two-bay choice for fast network access and flexible x86 containers. Its 8GB DDR4 can expand to 64GB, and M.2 plus shared U.2 positions offer flash options. It still has only two front bays and one 10GbE port; SSD choice and RAID layout strongly affect speed.",
        "evidenceIds": [
          "ev-mg",
          "ev-toms"
        ],
        "gaps": "Remaining workload and compatibility limits are explicit.",
        "thisRound": "Grok 4.6 research/self-check; GPT-6 (Codex) original-source review and corrections.",
        "reused": "Researcher input preserved separately.",
        "nextStep": ""
      },
      {
        "id": "video",
        "status": "尚未研究",
        "evidence": "Embedded videos were not watched or fully transcribed.",
        "evidenceIds": [],
        "gaps": "No conclusions derived from unread video.",
        "thisRound": "Grok 4.6 research/self-check; GPT-6 (Codex) original-source review and corrections.",
        "reused": "Researcher input preserved separately.",
        "nextStep": ""
      }
    ],
    "roundNote": "Available evidence independently reviewed; coverage is not a claim that every possible measurement exists."
  },
  "retiredRecords": [
    {
      "type": "offer-observation",
      "id": "direct-current-2026-09-10",
      "record": {
        "id": "direct-current",
        "merchant": "UGREEN",
        "seller": "UGREEN",
        "url": "https://ai.ugreen.com/products/ugreen-nasync-dxp2800-gt-2-bay-nas-storage?variant=47733669232834",
        "exactMpn": "16050",
        "configuration": "8GB DDR4; 3.5-inch SATA HDD / 2.5-inch SATA SSD / M.2 NVMe; user data drives not included",
        "priceUsd": 459.99,
        "currency": "USD",
        "availability": "in-stock",
        "condition": "new",
        "conditionBasis": "Manufacturer storefront product variant; no used, refurbished or open-box condition selected.",
        "checkedAt": "2026-09-10T01:13:48.353Z",
        "sourceId": "merchant-direct-current",
        "evidenceLocator": "Selected NASync DXP2800GT; identity match method exact-sku; live variant JSON",
        "shipping": "US shipping cost and destination eligibility not verified.",
        "purchaseConditions": "Exact selected manufacturer variant; price before tax; data drives are separate unless the configuration states otherwise."
      },
      "reason": "Same variant URL re-priced $459.99 → $429.99"
    },
    {
      "kind": "offer-history",
      "id": "ugreen-historical",
      "merchant": "UGREEN",
      "seller": "UGREEN",
      "url": "https://ai.ugreen.com/products/ugreen-nasync-dxp2800-gt-2-bay-nas-storage",
      "exactMpn": "16050",
      "configuration": "8GB DDR4; 3.5-inch SATA HDD / 2.5-inch SATA SSD / M.2 NVMe; user data drives not included",
      "priceUsd": 459.99,
      "currency": "USD",
      "availability": "in-stock",
      "condition": "new",
      "conditionBasis": "Previously verified exact direct new-condition product page.",
      "checkedAt": "2026-09-02T00:00:00Z",
      "sourceId": "merchant-ugreen-historical",
      "evidenceLocator": "ugreen-nasync-dxp2800gt::ugreen; historical observation, not refreshed by this research run",
      "shipping": "Historical shipping terms were not refreshed.",
      "purchaseConditions": "Historical dated USD observation retained for budgeting; recheck seller, stock, price and shipping before purchase."
    }
  ],
  "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."
  }
}
