TerraMaster F4-425 Pro: Four-bay NAS with dual 5GbE and three M.2
Plex and Jellyfin transcode on Quick Sync here, thanks to the 8-core N305 inside this four-bay NAS. The three M.2 slots hold Docker containers and light VMs. Networking is dual 5GbE, and the single RAM slot takes DDR5 up to 32GB. TOS 7 is a big step up from TOS 6, though still not DSM. The box also idles warmer and hungrier than the N150 NAS models.
Compare with similar hardware
See how TerraMaster F4-425 Pro stacks up against other NAS picks.
| Spec | TerraMaster F4-425 Pro | AOOSTAR WTR MAX | AOOSTAR WTR Pro | Beelink ME mini | QNAP TS-464 | Synology DS925+ | UGREEN DXP4800 Pro |
|---|---|---|---|---|---|---|---|
| Price | $595 (opens in a new tab) | $699 (opens in a new tab) | $359 (opens in a new tab) | $299 (opens in a new tab) | $599 (opens in a new tab) | $770 (opens in a new tab) | $800 (opens in a new tab) |
| Running cost | $36/yr at $0.17/kWh | $27/yr at $0.17/kWh | $13/yr at $0.17/kWh | $10/yr at $0.17/kWh | $33/yr at $0.17/kWh | $18/yr at $0.17/kWh | $39/yr at $0.17/kWh |
| Power Draw | ~24W idle (est.), peaks above 65W with drives | ~18W idle with no drives; ~52W with six drives idle (measured) | ~9W idle, ~22W with four drives (measured) | ~7W idle, ~17W with six SSDs (measured) | ~22W disk standby, ~40W typical (QNAP figures) | ~12W HDD hibernation, ~38W access (Synology figures) | ~26W idle |
| Warranty | 2 years | 1 year | 1 year | 3 years | 3 years | 3 years | 2 years |
| CPU | Intel Core i3-N305 (8C/8T, up to 3.8GHz) | AMD Ryzen 7 PRO 8845HS (8C/16T, up to 5.1GHz) | AMD Ryzen 7 5825U (8C/16T, up to 4.5GHz) | Intel N95 (4C/4T, up to 3.4GHz) | Intel Celeron N5095 (4C/4T, up to 2.9GHz) | AMD Ryzen V1500B (4C/8T, 2.2GHz) | Intel Core i3-1315U (6C/8T, up to 4.5GHz) |
| GPU | Intel UHD Graphics (integrated) | Radeon 780M (12 CU, 2700MHz) | Radeon Vega 8 (2000MHz, integrated) | Intel UHD Graphics (16 EU) | Intel UHD Graphics (integrated) | None (no integrated graphics) | 13th Gen Intel UHD Graphics (integrated) |
| RAM | 8GB DDR5 SODIMM; 1 slot, up to 32GB | Barebone; 2 x DDR5-5600 SODIMM (ECC), up to 128GB | Barebone; 2 x DDR4-3200 SO-DIMM slots, up to 64GB | 12GB LPDDR5 4800 (soldered) | 8GB DDR4 SODIMM; 2 slots, up to 16GB | 4GB DDR4 ECC SODIMM, up to 32GB | 8GB DDR5 (exp. 96GB) |
| Transcoding | Yes - Intel UHD Graphics (Quick Sync) | Yes - Radeon 780M (AV1, HEVC) | Yes - Radeon Vega 8 | Yes - Intel UHD Graphics (Quick Sync) | Yes - Intel UHD Graphics (Quick Sync) | No - no integrated graphics | Yes – Intel Quick Sync |
| Form factor | 4-bay desktop NAS | 6-bay desktop NAS | 4-bay desktop NAS | 6-bay all-flash cube | 4-bay desktop NAS | 4-bay desktop NAS | 4-bay desktop NAS |
| NVMe slots | 3 x M.2 2280 (PCIe 3.0 x1) | 5 x M.2 2280 (3 x PCIe 4.0 x2, 2 x x1) | 2 x M.2 2280 (PCIe 3.0 x4) | 6 x M.2 2280 (PCIe 3.0 x1) | 2 x M.2 2280 (PCIe 3.0 x1) | 2 x M.2 2280 (cache or storage pools) | 2 x M.2 NVMe (PCIe 4.0) |
| SATA ports | 4 x 3.5/2.5in hot-swap bays | 6 x 3.5/2.5in bays, up to 24TB each | 4 x 3.5/2.5in bays, up to 22TB each | None - all-flash | 4 x 3.5/2.5in hot-swap bays | 4 x 3.5/2.5in hot-swap bays | 4 x SATA bays |
| LAN ports | 2 x 5GbE | 2 x 10GbE SFP+ (Intel X710) + 2 x 2.5GbE | 2 x 2.5GbE (Intel i226-V) | 2 x 2.5GbE (Intel i226-V) | 2 x 2.5GbE | 2 x 2.5GbE | 1 x 10GbE + 1 x 2.5GbE |
| USB-A ports | 3 x USB 3.2 Gen 2 (10Gbps) | 3 x USB 3.2 (10Gbps) | 2 x USB 3.0, 2 x USB 2.0 | 1 x USB 3.2 Gen 2 (10Gbps), 1 x USB 2.0 | 2 x USB 3.2 Gen 2 (10Gbps), 2 x USB 2.0 | 2 x USB 3.2 Gen 1 (5Gbps) | 1 x USB-A (10Gbps) front, 1 x USB-A (5Gbps) rear, 2 x USB 2.0 rear |
| USB-C ports | 1 x USB-C (10Gbps) | 1 x USB4, 1 x USB-C | 1 x USB-C (display, 100W power delivery) | 1 x USB-C (10Gbps, data) | – | 1 x USB-C (DX525 expansion) | 1 x USB-C (10Gbps) front |
| SD card slot | – | – | microSD | – | – | – | SD 3.0 |
| Video output | 1 x HDMI | HDMI 2.1 + DisplayPort 1.4 + USB-C, up to 3 displays | HDMI 2.1 + DisplayPort 1.4 (144Hz) + USB-C, up to 3 displays | 1 x HDMI (4K 60Hz) | 1 x HDMI (4K 60Hz) | – | HDMI 4K |
| Expansion slot | – | None; OCuLink (PCIe 4.0 x4) for an eGPU or external drives | – | – | 1 x PCIe 3.0 x2 (half-height) | – | – |
| Wi-Fi | – | – | – | WiFi 6 | – | – | – |
| Bluetooth | – | – | – | Bluetooth 5.2 | – | – | – |
| Noise | ~21 dB(A) standby with drives (TerraMaster); fan ramps under load | 35-38 dB auto, 43-44 dB at full fan (measured) | 37-38 dB idle, 42 dB under load (measured) | ~31-34 dB(A) idle, up to 40 under load (measured) | ~21 dB(A) at 1m (measured); audible under load | ~21 dB(A) idle with drives (Synology) | Quiet at idle, audible under load |
| Comes with an OS | Yes – vendor OS | Yes – vendor OS | Yes – vendor OS | Yes – vendor OS | Yes – vendor OS | Yes – vendor OS | Yes – vendor OS |
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