TerraMaster F4-425PRO(N305) 4-Bay NAS File Server, Intel N305 8-Core, 8GB DDR5, 2x 2.5GbE, M.2 NVMe, Diskless

The TerraMaster F4-425PRO(N305) redefines compact NAS performance with its Intel Processor N305—an 8-core, 8-thread chip that outpaces typical Celeron-based units. Paired with 8GB of DDR5 memory and dual 2.5GbE ports, this 4-bay diskless server delivers responsive file sharing, smooth 4K transcoding, and ample headroom for Docker and virtual machines. Unlike basic home NAS boxes, it includes two M.2 NVMe slots for caching and an HDMI 2.0 port for direct media playback.

Highlights

• Intel Processor N305: 8 cores, up to 3.8 GHz, for demanding multitasking
• 8GB DDR5 SODIMM (expandable to 32GB) for fast data handling
• 4 hot-swappable SATA III bays for 3.5" or 2.5" drives, up to 96TB raw
• Dual 2.5 Gigabit Ethernet ports with link aggregation support
• Two M.2 NVMe PCIe Gen3 x1 slots for SSD caching or storage
• HDMI 2.0 output with hardware transcoding (H.264, H.265, VP9)
• USB 3.2 Gen2 Type-C and Type-A ports for fast external expansion
• RAID 0/1/5/6/10, JBOD, and Single modes for flexible data protection
• Runs TerraMaster TOS 6 with Btrfs/EXT4 support and snapshot protection

In daily use

The F4-425PRO(N305) excels as a central file hub for households and small offices. Its 8-core processor easily handles simultaneous backups, media streaming, and remote access without slowdowns. The dual 2.5GbE ports provide up to 5 Gbps aggregate bandwidth when used with a compatible switch, making large file transfers feel instant. Add two NVMe SSDs as a cache to accelerate frequently accessed data, or use them as a dedicated high-speed volume for virtual machines. The quiet 120mm smart fan keeps noise at just 19.8 dB(A) during idle, so it fits comfortably in a living room or office. With hot-swappable bays, you can replace drives without downtime, and the robust RAID options ensure your data remains safe even if a disk fails.

Full specifications

• Processor: Intel Processor N305 (8 cores, 8 threads, up to 3.8 GHz, 6MB cache)
• Memory: 8GB DDR5 SODIMM (1 x 8GB), expandable to 32GB
• Drive bays: 4 x 3.5"/2.5" SATA III HDD/SSD, hot-swappable
• M.2 slots: 2 x M.2 2280 NVMe PCIe Gen3 x1
• Network: 2 x 2.5 Gigabit Ethernet (RJ-45)
• USB: 1 x USB 3.2 Gen2 Type-C, 2 x USB 3.2 Gen2 Type-A
• Video: 1 x HDMI 2.0 (4K @ 60Hz)
• RAID: 0, 1, 5, 6, 10, JBOD, Single
• Operating system: TerraMaster TOS 6
• File system: Btrfs, EXT4
• Cooling: 1 x 120mm smart fan
• Noise level: 19.8 dB(A) (HDD idle)
• Power supply: 90W external adapter

Final note

The F4-425PRO(N305) is a future-ready NAS that combines powerful processing, fast networking, and versatile storage expansion—ideal for users who want more than just basic file sharing without stepping up to rack-mount hardware.