Technical reference
TerraMaster F4-425 Plus N95 specifications
F4-425-PLUS-N95 · Intel N95 · 4-core · 8GB RAM · 3.5-inch SATA HDD / 2.5-inch SATA SSD / M.2 NVMe
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Identity
Compute and memory
Official specifications and applicable conditions.
| Processor | Intel N95 · 4-core[1] |
|---|---|
| Factory memory | 8GB RAM[1] Factory memory is kept separate from maximum supported capacity and from seller-installed upgrades. |
| Physical CPU cores | 4[2][3] |
| Factory memory | 8 GB[2][4] |
| Host memory ECC | Not verified[1] F4-425 Plus N95: evidence is still needed for host-path ECC in the factory configuration; on-die ECC does not establish host ECC. This remains unknown, not a confirmed no. |
| Official memory upgrade path | Not verified[1] The current detailed specifications identify an N150 processor, while the selected variant is N95. Exact N95 hardware support and slot limits have not been established; N150 specifications are not substituted. |
| Official memory limit | Not confirmed for N95. Plus PDF lists 32 GB on the N150 16GB column.[1][16] Evidence boundary: the opened exact-model official page did not publish or establish this field. The citation records the checked evidence boundary, not a confirmed feature. The current detailed specifications identify an N150 processor, while the selected variant is N95. Exact N95 hardware support and slot limits have not been established; N150 specifications are not substituted. |
| Memory generation | 8 GB; conflicting DDR4 and DDR5 claims in N95-specific official prose[1] Do not apply the N150 memory-limit table to N95. Confirm compatible module details before purchase. |
Storage and expansion
Official specifications and applicable conditions.
| Cataloged drive-bay count | 4[1] M.2 positions are listed separately and are not silently added to SATA bay count. |
|---|---|
| Supported drive layout | 3.5-inch SATA HDD / 2.5-inch SATA SSD / M.2 NVMe[1] |
| Replaceable storage drives | Yes — removable SATA drive trays[1] The N95 product prose and exact diskless merchant listing identify the same two/four removable SATA-bay arrangement. |
| M.2 expansion | Yes[11][12] |
| Official external drive enclosure expansion | TerraMaster USB DAS expansion advertised for this Plus family[1] Current shared product page explicitly supports USB DAS expansion; exact supported enclosure, pool and TOS combinations need confirmation. |
| Physical M.2 slots | 3[10][11][12] |
| SATA without a mandatory model whitelist | Not verified[1] F4-425 Plus N95: evidence is still needed for the documented boundary of any mandatory manufacturer-model whitelist for SATA media; a compatibility list alone does not establish a technical lock. This remains unknown, not a confirmed no. |
| M.2 without a mandatory model whitelist | Not verified[1] F4-425 Plus N95: evidence is still needed for the documented boundary of any mandatory manufacturer-model whitelist for M.2 media; an omitted restriction does not establish unrestricted support. This remains unknown, not a confirmed no. |
Network
Official specifications and applicable conditions.
| Installed Ethernet | 2 × 5GbE[1] Multiple ports do not guarantee one client the sum of their link rates. |
|---|---|
| Fastest installed single network port | 5 Gbps[2][4] |
| Official network upgrade path | No official faster-NIC upgrade path verified[1] The shared N150 sheet cannot establish a separate N95 expansion-slot specification. |
Software and data protection
Official specifications and applicable conditions.
| Factory operating system | TOS; verify the supplied version[1] N95-specific prose mentions TOS 6 alongside shared TOS 7 marketing. A shipping build and exact download package were not verified. |
|---|---|
| Published RAID types | RAID 0/1/5/6/10; TRAID/TRAID+[1] Transcribed from the opened current exact-model product table. Practical layouts depend on the selected SATA/M.2 media and drive count. |
| RAID support | Yes[1] The opened exact-model page publishes TRAID storage and redundancy support. The current table lists RAID 0/1/5/6/10 and TRAID/TRAID+. Available layouts still depend on the installed SATA/M.2 media and drive count. |
| Backup through the graphical interface | Yes[1][6] The exact-model page identifies TOS, and the official TOS 7 Duple Backup guide documents its graphical task interface. Package availability and menus can still vary by installed build. |
| Backup to an independent target | Yes[1][6] The exact-model page identifies TOS, and the official TOS 7 Duple Backup guide documents remote TNAS, file-server and cloud destinations outside the source enclosure. |
| Documented restore path | Yes[1][6] The exact-model page identifies TOS, and the official TOS 7 Duple Backup guide provides restore tasks from existing jobs and retained .duple data. |
| Scheduled backup | Yes[1][6] The exact-model page identifies TOS, and the official TOS 7 Duple Backup guide documents task execution schedules. |
| Restore from snapshots | Yes[1][7] The exact-model page identifies TOS, and the official TOS 7 Snapshot guide documents local and remote snapshot restore paths. It requires a supported TOS version, BTRFS and an applicable folder or LUN configuration. |
| Version retention | Yes[1][6] The exact-model page identifies TOS, and the official TOS 7 Duple Backup guide documents multi-version backup, version selection and retention counts. |
| Immutable protection | HyperLock-WORM protection is published; configuration and administrator boundaries need verification[1] The current exact-model page publishes HyperLock-WORM protection. The opened page does not fully establish setup prerequisites, enforcement against every administrator path or the effective retention setting, so this remains a buying-relevant gap. |
| Remote snapshot replication | Yes[1][7] The exact-model page identifies TOS, and the official TOS 7 Snapshot guide documents scheduled duplication and snapshot replication to a remote TNAS, subject to its stated setup requirements. |
| Native endpoint restore | Endpoint restoration workflow not independently verified[1] Backup app availability and a file restore path do not alone establish full endpoint recovery. |
| Official system update path | Current product page advertises TOS 7; exact update package not verified[1] Support download service returned an error and release-topic pages were blocked. This is a package-verification gap, not proof that official updates are unsupported. |
| System status interface | Yes[1][8] The exact-model page identifies TOS, and the official TOS 7 Device Monitoring guide documents hardware, storage, resource and network status views. |
| System log interface | Yes[1][9] The exact-model page identifies TOS, and the official TOS 7 System Logs guide documents a categorized log interface. |
Warranty and support
Official specifications and applicable conditions.
| Standard warranty | 2 years[4] |
|---|
Physical, power and acoustics
Official specifications and applicable conditions.
| Dimensions | 150 × 181 × 219 mm (H×W×D)[1][16] F4-425 Plus PDF chassis; that sheet's CPU column is N150 16GB. |
|---|---|
| Weight | Net 2.9 kg; gross 4.1 kg[1][16] PDF Weight on N150 sheet; shared chassis assumption. |
| Power supply and consumption | N95 consumption not verified; shared N150 sheet: 90 W adapter, 45 / 14 W access / hibernation[1] Related N150 factory measurements, not N95 measured power. |
| Acoustic conditions | HTML 20.9 dB(A) with 4 SATA standby, 17.3 dB(A) room, 1 m (Plus page)[1][16] Shared Plus chassis footnote. |
Exact product identity & open questions
- Product ID
- terramaster-f4-425-plus-n95[1]
- Exact MPN or manufacturer configuration ID
- F4-425-PLUS-N95[1]
- Model
- F4-425 Plus N95[1]
- Factory compute and memory
- Intel N95 · 4-core; 8GB RAM[1]
- Storage layout
- 3.5-inch SATA HDD / 2.5-inch SATA SSD / M.2 NVMe[1]
- Conflicting N95 memory type: N95-specific official paragraphs name both DDR4 and DDR5; exact module type and upgrade limit require confirmation.
- Exact N95 original test: No applicable performance, power or noise test was found for this variant.
- Shared detailed sheet: The full PDF explicitly identifies N150/16GB. Its hardware/software ceilings are retained as related evidence and not reassigned to N95.
- Current software and recovery: Shipping build, exact update package, full endpoint restoration and immutable retention boundaries remain unverified.
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 Plus N95 official product page ↗
Checked Sep 8, 2026 · Exact model page, hardware description, configuration selector and current feature sections
- [2] variant ↗
Checked Sep 10, 2026 · product.variants[id=44971851513890] → title / sku / options; public product JSON → description + variants selected N95
- [3] intel-n95 ↗
Checked Sep 10, 2026 · Intel CPU Specifications → Total Cores / Total Threads; F6-424 Processor Model
- [4] terramaster-f4-425-plus-n95 ↗
Checked Sep 8, 2026 · terramaster-f4-425-plus-n95: normalized text lines 274–290; terramaster-f4-425-plus-n95: normalized text lines 48–48; TM Support official first post 2026-08-04; exact product TOS7/CPU statement; Official product: N95-specific performance section, normalized text line 86; memory type conflict separately retained at line 143
- [5] tos7-x86-release ↗
Checked Sep 8, 2026 · TM Support official first post 2026-08-04; exact product TOS7/CPU statement
- [6] TOS7 Duple Backup ↗
Checked Sep 10, 2026 · Duple Backup → How to Create a Backup Task / Multi-Version Mode / Restore
- [7] TOS7 Snapshot ↗
Checked Sep 10, 2026 · Snapshot → Requirements / Schedules / Retention / Duplicate / Restore
- [8] TOS7 Device Monitoring ↗
Checked Sep 10, 2026 · Device Monitoring → Overview / Resource Usage
- [9] TOS7 System Logs ↗
Checked Sep 10, 2026 · System Logs → introduction / Management and Operations
- [10] F4-425 Plus N95 official m2Slots specification ↗
Checked Sep 8, 2026 · normalized text line 143; N95-specific paragraph (separate from the adjacent N150 paragraph)
- [11] F4-425 Plus N95 official m2Slots specification ↗
Checked Sep 10, 2026 · Photography Enthusiasts / Home Creators; normalized text lines 775–779
- [12] F4-425 Plus N95 official m2Slots specification ↗
Checked Sep 10, 2026 · comparison columns 1/2 = F4-425 Plus/F2-425 Plus; lines 906–945; gp-row#gEUaSnEJvA
- [13] TerraMaster first-party variant data for F4-425-PLUS-N95 ↗
Checked Sep 10, 2026 · First-party variant endpoint; variant 44971851513890; N95; SKU F4-425-PLUS-N95; available=true; price and selection data only
- [14] TerraMaster exact selected product page for F4-425-PLUS-N95 ↗
Checked Sep 10, 2026 · Exact selected PDP URL for variant 44971851513890. The base PDP was opened without a separately verified successful response; SKU, price and availability came from first-party endpoint https://www.terra-master.com/products/f4-425-plus.js at 2026-09-10T01:13:19.779Z. The query-specific PDP was not represented as a separate fetch.
- [15] TerraMaster historical exact new-product PDP ↗
Checked Sep 2, 2026 · terramaster-f4-425-plus-n95::terramaster; retained historical price, availability and seller record
- [16] F4-425 Plus PDF (N150 16GB sheet) ↗
Checked Sep 11, 2026 · Processor Model N150 16GB; chassis/power rows
- [17] F4-425 Plus Shopify JSON ↗
Checked Sep 11, 2026 · N95 sku F4-425-PLUS-N95 price 47999 available true; N150 64999 unavailable
- [18] Newegg F4-425 Plus N95 ↗
Checked Sep 11, 2026 · TERRAMASTER OFFICIAL $479.99 Item 9SIAA3NKUP3111
- [19] NASCompares F4-425 PLUS (Wayback) ↗
Checked Sep 11, 2026 · N150 16GB RAID5 HDD ~500-520 MB/s
- [20] TechRadar F4-425 Plus ↗
Checked Sep 11, 2026 · N150 16GB hardware; not N95
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 original text/table review and explicitly recorded chart readings; full applicable official tables, exact merchant variant checks, evidence attribution and reader guidance. Blocked and unviewed material remains identified.
- 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)