Hardware and budget
Replaceable memory can grow to 16 GB, while storage and network expansion remain limited. Plan capacity, redundancy and an independent backup before filling all four bays.[1]
TerraMaster · NAS buying guide
TerraMaster F4-425 NAS Buying Guide
Product facts and dated cost
TerraMaster F4-425 · Exact identity: F4-425
4 primary bays · Intel Celeron N5095 · 4GB RAM · 1 × 2.5GbE · Diskless: hard drives cost extra
Catalog amount: $343.99 · recent · Price record: 2026-10-09T03:58:03.537291+00:00. Tax and shipping excluded.
Price observed at the store on the shown date. Confirm the current price and availability at the store.
F4-425: specifications and dated store comparison →Four SATA bays for home storage and light media use
Diskless F4-425; factory 4GB DDR4; not the Plus or Pro model.
Based on exact-model manufacturer documentation, 4 retained original reviews and dated US merchant records. ChooseCompute has not tested this NAS itself. See the review evidence ↓
Is the F4-425 right for you?
Home archive
Replaceable memory can grow to 16 GB, while storage and network expansion remain limited. Plan capacity, redundancy and an independent backup before filling all four bays.[1]
Light media server
Irish Examiner used four Samsung 500 GB SSDs in RAID 5 and played an 80 GB 4K film over home Wi-Fi. This does not identify transcoding mode or establish maximum network throughput.[2][3][4][9]
NVMe and faster network
Compare drive cost, the installed network path and workload evidence with your requirements before choosing this configuration.[1]
Interface polish
Compare drive cost, the installed network path and workload evidence with your requirements before choosing this configuration.[1]
Key NAS specifications
Full specifications ↗Follow any specification for its full conditions and sources.
Living with it
Four-bay storage, TOS and upgrade limits
Software and recovery
Keep a separate backup and test a restore. Official app listings and generic TOS help describe available features; the reviewed units do not establish every update, retention, replication or endpoint-recovery workflow.[1]
What original reviews found
Our buying advice combines official specifications with the original reviews below. We have not tested this product ourselves. Expand a review for its setup, measurements and limitations.
EnosTech
B EnosJan 14, 2026
TerraMaster F4-425 NAS Storage Review
Tool-free HDD trays and TNAS setup were straightforward; the supplied memory was enough for the reviewer’s limited use. TerraMaster supplied the review unit; affiliate links.
Read the original reviewTest setup, measurements & limitations
TerraMaster F4-425 NAS Storage Review
Tested: Factory 4GB described, several weeks of use. NAS drives/RAID and TOS build not disclosed; a 10GB transfer goes to a Teamgroup G70 Pro 1TB client SSD. TNAS screenshot identifies TOS 6.0.783-01200. The screenshot is a status panel, not a throughput chart.
Applies to: Setup and app observations only.
- Tool-free HDD trays and TNAS setup were straightforward; the supplied memory was enough for the reviewer’s limited use.Source location: Drive installation, memory and conclusion
- A 10 GB transfer from the NAS to a Teamgroup G70 Pro client SSD is described; no MB/s result is given. Fan did not spin up. Unit was sent by TerraMaster.Source location: Performance / 10GB file transfer
Limits to keep in mind
- TerraMaster supplied the review unit; affiliate links.
- Network description conflates internet speed and local transfers; no numeric throughput or fan-stop claim is adopted.
- 10 GB copy has no disclosed RAID, HDD model or MB/s.
Wired Italia
Diego BarberaJan 19, 2026
TerraMaster F4-425, la prova del NAS economico e semplice per backup e multimedia
Setup was easy, but Italian translations and overall interface polish could improve. No controlled performance measurements.
Read the original reviewTest setup, measurements & limitations
TerraMaster F4-425, la prova del NAS economico e semplice per backup e multimedia
Tested: Several weeks with the exact F4-425; 4GB described. Drives, RAID, client and TOS build unspecified.
Applies to: Qualitative setup and Italian-interface experience.
- Setup was easy, but Italian translations and overall interface polish could improve.Source location: Characteristics and conclusion
Limits to keep in mind
- No controlled performance measurements.
- Article’s 48W PSU and large user-account figures conflict with official F4-425 specification; not adopted. Affiliate shopping link present.
Ultimate Technology Reviews
Indiana LangSep 7, 2026
TerraMaster F4-425 Review: A Better Value Than Synology or QNAP?
The reviewer found mobile setup and push-lock trays convenient. Unit supplied free for review and affiliate commission disclosed.
Read the original reviewTest setup, measurements & limitations
TerraMaster F4-425 Review: A Better Value Than Synology or QNAP?
Tested: Factory 4GB described. Drive count/models, RAID, client and TOS version not disclosed.
Applies to: Recent qualitative setup and desk-use impressions.
- The reviewer found mobile setup and push-lock trays convenient.Source location: Setup
Limits to keep in mind
- Unit supplied free for review and affiliate commission disclosed.
- No workload or instrumented noise data; broad brand comparisons excluded.
Irish Examiner
Noel CampionFeb 12, 2026
Irish Examiner: exact-model original experience
Jellyfin played an 80 GB 4K film over the author’s home Wi-Fi, and routine storage use was satisfactory. This is playback experience, not a measured transcoding or maximum-concurrency test. No measured MB/s, power or calibrated acoustics.
Read the original reviewTest setup, measurements & limitations
Irish Examiner: exact-model original experience
Tested: F4-425 N5095/4 GB; four Samsung 500 GB SSDs in RAID 5. Months of home use; 4K TV over Wi-Fi. Exact SSD models, TOS build and LAN client not disclosed.
Applies to: direct
- Jellyfin played an 80 GB 4K film over the author’s home Wi-Fi, and routine storage use was satisfactory. This is playback experience, not a measured transcoding or maximum-concurrency test.Source location: Home media and verdict
- HDMI did not provide the expected TV-media workflow. Useful four-bay capacity is limited by the single 2.5GbE path and modest processor.Source location: Connections and setup
Limits to keep in mind
- No measured MB/s, power or calibrated acoustics.
- One home configuration; file size alone does not disclose codec, bitrate, direct-play/transcoding mode or concurrent users.
Common HDD combinations
Examples ordered by recorded drive unit price, which may be historical or an editorial reference. Check capacity, vendor compatibility, included storage and price evidence before choosing. These are component checks, not compatibility certifications.
- F4-425 + 2 × WD Red Plus 2TB (WD20EFPX, 2TB each) →
Component total: $653.97 · historical · Oldest price record: 2026-10-09T01:23:41.974420+00:00 · 4TB raw, before redundancy.
Historical price estimate. Calculated from separately purchased components, not a complete-system offer. NAS price record: 2026-10-09T03:58:03.537291+00:00; drive price record: 2026-10-09T01:23:41.974420+00:00. Price observed at the store on the shown date. Confirm the current price and availability at the store. Historical price observation. Recheck the price and availability before buying; this is not a current offer. Recheck component prices, stock, shipping and tax at the stores before purchase; even recent checks do not guarantee live prices.
- F4-425 + 2 × IronWolf 4TB (ST4000VN006, 4TB each) →
Component total: $723.97 · recent · Oldest price record: 2026-10-09T03:58:03.537291+00:00 · 8TB raw, before redundancy.
Dated price estimate. Calculated from separately purchased components, not a complete-system offer. NAS price record: 2026-10-09T03:58:03.537291+00:00; drive price record: 2026-10-09T03:58:24.994342+00:00. Price observed at the store on the shown date. Confirm the current price and availability at the store. Price observed at the store on the shown date. Confirm the current price and availability at the store. Recheck component prices, stock, shipping and tax at the stores before purchase; even recent checks do not guarantee live prices.
- F4-425 + 2 × WD Red Plus 4TB (WD40EFZZ, 4TB each) →
Component total: $733.97 · historical · Oldest price record: 2026-09-27T13:58:17.239646+00:00 · 8TB raw, before redundancy.
Historical price estimate. Calculated from separately purchased components, not a complete-system offer. NAS price record: 2026-10-09T03:58:03.537291+00:00; drive price record: 2026-09-27T13:58:17.239646+00:00. Price observed at the store on the shown date. Confirm the current price and availability at the store. Historical price observation. Recheck the price and availability before buying; this is not a current offer. Recheck component prices, stock, shipping and tax at the stores before purchase; even recent checks do not guarantee live prices.
- F4-425 + 4 × WD Red Plus 2TB (WD20EFPX, 2TB each) →
Component total: $963.95 · historical · Oldest price record: 2026-10-09T01:23:41.974420+00:00 · 8TB raw, before redundancy.
Historical price estimate. Calculated from separately purchased components, not a complete-system offer. NAS price record: 2026-10-09T03:58:03.537291+00:00; drive price record: 2026-10-09T01:23:41.974420+00:00. Price observed at the store on the shown date. Confirm the current price and availability at the store. Historical price observation. Recheck the price and availability before buying; this is not a current offer. Recheck component prices, stock, shipping and tax at the stores before purchase; even recent checks do not guarantee live prices.
- F4-425 + 4 × IronWolf 4TB (ST4000VN006, 4TB each) →
Component total: $1,103.95 · recent · Oldest price record: 2026-10-09T03:58:03.537291+00:00 · 16TB raw, before redundancy.
Dated price estimate. Calculated from separately purchased components, not a complete-system offer. NAS price record: 2026-10-09T03:58:03.537291+00:00; drive price record: 2026-10-09T03:58:24.994342+00:00. Price observed at the store on the shown date. Confirm the current price and availability at the store. Price observed at the store on the shown date. Confirm the current price and availability at the store. Recheck component prices, stock, shipping and tax at the stores before purchase; even recent checks do not guarantee live prices.
Before you buy
F4-425 prices and ownership costs
Storage and protection
Choose drive count and RAID for usable capacity and availability; keep an independent copy. All retained offers are diskless.[1]
Network and installation
Budget for compatible client ports, adapters and switching. Multiple Ethernet ports do not automatically combine into one faster transfer.[1]
Compare stores for this exact model
Diskless F4-425; factory 4GB DDR4; not the Plus or Pro model. Check the total delivered price at the store.
Lowest observed price
$343.99
In stock at observation
Currency not confirmed
4 stores · 1 recent price observation
TerraMaster
Seller not recorded
$343.99
Observed price
Currency not confirmed
In stock at observation · Condition not recorded
Observed Oct 9, 2026, 3:58:03 AM UTC[10]
View exact product at TerraMasterNewegg
Sold by TERRAMASTER OFFICIAL
$343.99
Historical price
Stock not confirmed · New
Diskless enclosure; factory 4GB
Free shipping shown; fulfilled by Newegg. Historical new factory-4GB listing; current fetch is a human-check page. Merchant N95 text conflicts with official N5095 identity: confirm CPU before ordering. Price and stock are historical, not refreshed.
Observed Sep 8, 2026, 4:16:07 PM UTC[7]
View exact product at NeweggTerraMaster
Sold by TerraMaster
$364.99
Historical price
Stock not confirmed · New
Diskless enclosure; factory 4GB
US store advertises free shipping; confirm checkout. New diskless exact configuration; before tax. Verify destination, shipping and final checkout terms.
Observed Sep 11, 2026, 1:29:28 PM UTC[5]
View exact product at TerraMasterB&H Photo Video
Sold by B&H Photo Video
$365.49
Historical price
Stock not confirmed · New
Diskless enclosure; factory 4GB
Free 2-Day Shipping New diskless 4GB F4-425; before tax. Payboo benefits not deducted; export restrictions apply.
Observed Sep 8, 2026, 4:16:07 PM UTC[6]
View exact product at B&H Photo VideoNewegg
Sold by TERRAMASTER OFFICIAL
$429.99
Historical price
Stock not confirmed · New
Observed shipping: $0.00
Observed Oct 9, 2026, 1:21:16 AM UTC[11]
View exact product at NeweggAmazon
Sold by TERRAMASTER
Check price
Stock not confirmed · New
Diskless enclosure; factory 4GB
Fulfilled by Amazon; verify destination. Exact new 4GB diskless offer and seller verified. Main price not isolated from cached/recommendation blocks, so no price is published.
Observed Sep 8, 2026, 4:16:07 PM UTC[8]
View exact product at AmazonPrices are dated observations. Confirm the model, seller, condition, stock and delivered total at the store. Older prices remain visible as history. Links may earn a commission.
Questions before buying
What does the original testing establish?
Irish Examiner used four Samsung 500 GB SSDs in RAID 5 and played an 80 GB 4K film over home Wi-Fi. This does not identify transcoding mode or establish maximum network throughput.[2][3][4][9]
Which system version will arrive?
Current manufacturer marketing advertises TOS 7, but the exact shipping build and update-package mapping were not verified. Review results apply to the versions recorded in each test.[1]
Are storage drives included?
No. These are diskless offers. Select suitable drives and allow for RAID overhead and an independent backup.[1]
Can I add M.2 cache or a faster NIC?
No M.2 or PCIe expansion slots are documented. SATA SSDs consume bays; the single built-in Ethernet port is 2.5GbE.[1]
Sources
Research updated Sep 11, 2026. Individual source check dates are listed below. Measurements belong to the named reviewers; tested configurations and software versions may differ from the product you buy.
- [1] TerraMaster F4-425 complete specification PDF ↗
Checked Sep 10, 2026 · All four pages: hardware, TOS features and footnotes
- [2] EnosTech original F4-425 review ↗
Checked Sep 10, 2026 · Setup, configuration and original-use sections
- [3] Wired Italia original F4-425 review ↗
Checked Sep 10, 2026 · Setup, configuration and original-use sections
- [4] Ultimate Technology Reviews original F4-425 review ↗
Checked Sep 10, 2026 · Setup, configuration and original-use sections
- [5] TerraMaster F4-425 new enclosure offer ↗
Checked Sep 10, 2026 · Exact model, factory memory and regular new buy box
- [6] B&H Photo Video F4-425 new enclosure offer ↗
Checked Sep 8, 2026 · Exact model, factory memory and regular new buy box
- [7] Newegg F4-425 new enclosure offer ↗
Checked Sep 10, 2026 · Exact model, factory memory and regular new buy box
- [8] Amazon F4-425 new enclosure offer ↗
Checked Sep 10, 2026 · Exact model, factory memory and regular new buy box
- [9] Irish Examiner F4-425 review ↗
Checked Sep 11, 2026 · Opened; little original measurement in the saved extract
- [10] TerraMaster product price observation ↗
Checked Oct 9, 2026 · Captured observation; sha256:9372aaf64349464e29cf7953ab8bf3db2f582caecf8b2ea1be74c5f2bd7209ac
- [11] Newegg product price observation ↗
Checked Oct 9, 2026 · newegg-main-item; sha256:5c0ab8d2f2ed71e1d55370e75189fb31dc366c4d5b13d6525929d11bd39dd16a
Research and review record
- Research: Grok 4.6 · Source research and data update
- Self-check: Grok 4.6 · Researcher self-check
- Independent review: GPT-6 (Codex) · Independent full available original text/table review and named chart inspection, exact model/table/offer reconciliation and evidence attribution; unviewed video and blocked sources explicitly excluded.
- Editorial integration: GPT-6 (Codex) · Editorial integration and validation
Independent review completed for the scope recorded in the audit.
Source evidence and review history (JSON)