TrueNAS, Unraid & Backups

Best Mini PCs for a NAS

Build a quiet all-flash NAS for files, photos and backups. Count the drive slots and PCIe lanes, demand fast networking, and size the RAM for ZFS — CPU power is a secondary concern.

What matters for nas & storage

Drive slots and lanes

Count the M.2 slots and how many PCIe lanes each gets. Budget chips share a few lanes across all drives, so four NVMe drives may run at x1 each — still faster than 2.5GbE, but not than 10GbE.

Network speed

A single NVMe drive saturates 2.5GbE. Dual or quad 2.5GbE (with link aggregation) or 10GbE is what lets an all-flash NAS feel fast.

RAM for ZFS

ZFS uses spare RAM as cache (ARC). 16 GB is a comfortable floor; ECC is rare on mini PCs, so keep good backups.

Always-on efficiency

A NAS never sleeps. Low idle power and good drive cooling matter more than burst performance.

Recommended chip categories

Purpose-built

The classic NAS-board chip: eight cores, quad 2.5GbE and multiple NVMe slots at low power.

Storage / NAS Specialized

Core i3-N305 Quad-2.5G NAS

Intel 8-Core N305 (32EU Graphics)
4x 2.5GbE Intel i226-V USB-C DisplayPort
Graphics (iGPU)Intel UHD 32 EU
Memory Architecture1x SODIMM DDR5 4800MHz
Storage Exp.Up to 4x M.2 NVMe + 2x SATA
Idle Power9W – 15W
Est. Barebone Cost$220 - $310
Best Suited For

High-bandwidth TrueNAS SCALE box, multi-tenant router, localized NVR security server.

Small & cheap

Enough for SMB/NFS shares and backups across two drives at ~6 W — limited by lanes and a single RAM slot.

Ultra-Compact / Homelab

Intel N100 / N305 Micro Node

Intel Processor N100 (4C/4T, up to 3.4GHz)
Dual 2.5GbE Intel i226-V HDMI 2.0 USB 3.2
Graphics (iGPU)Intel UHD (24 EU)
Memory Architecture1x DDR4/DDR5 SODIMM (Up to 32GB)
Storage Exp.1x M.2 NVMe + 1x 2.5" SATA
Idle Power5W – 8W
Est. Barebone Cost$120 - $180
Best Suited For

OPNsense Firewall, Pi-hole, Plex DirectPlay, lightweight Proxmox cluster nodes.

10GbE all-flash

Models with 10GbE, two PCIe 4.0 x4 slots and lots of RAM make a very fast storage + compute server.

Unified-Memory AI Workstation

Strix Halo Ryzen AI Max+ 395

AMD Zen 5 (16C/32T, 50 TOPS NPU)
Dual USB4 40Gbps 5GbE / 10GbE PCIe x4 slot (select models)
Graphics (iGPU)Radeon 8060S (40 CUs, up to 2.9 GHz)
Memory ArchitectureLPDDR5X-8000 256-bit, soldered (64GB or 128GB)
Storage Exp.2x M.2 PCIe 4.0 x4
Idle Power10W – 18W
Est. Barebone Cost$1,500 - $2,800
Best Suited For

Local LLM inference on 30B–120B models, ROCm/AI development, 1440p gaming without a discrete GPU, heavy multi-core builds.

Target specification

Drive slots3+ M.2 NVMe, or a SATA / U.2 option
NetworkDual 2.5GbE minimum; 10GbE for all-flash speed
Memory16 GB+ for ZFS ARC
BootA separate small boot drive or USB/eMMC for TrueNAS
PowerUnder 12 W idle with drives

Avoid

  • Relying on USB-attached drives for a RAID or ZFS pool.
  • Assuming every M.2 slot is x4 — check the lane split in the spec sheet.
  • Running without a backup — a NAS is not a backup on its own.
Check before you buy
  • Check M.2 slot lane widths and whether any share lanes with Wi-Fi or SATA.
  • Add heatsinks or airflow for NVMe drives in a sealed chassis.
  • Pick drives with high TBW and DRAM (or HMB) cache for ZFS.
  • Plan off-site backups (rsync, restic, or a second NAS).

Mini PCs for nas & storage

Beelink

Beelink ME mini

Intel Processor N150 (4C/4T, up to 3.6 GHz)
2x 2.5GbE (I226-V) or 2.5G + 5G HDMI 2.0 (4K 60Hz) USB-C 10Gbps USB 3.2 10Gbps
GraphicsIntel UHD Graphics (24 EU)
Memory16GB LPDDR5-4800 soldered (12GB option)
Storage6x M.2 2230/2242/2280 (1x PCIe 3.0 x4 + 5x PCIe 3.0 x1), Up to 24TB
Idle Power6W – 7W (no drives) · ~17W with six SSDs
Price$525 (N150/16GB/1TB)
Chip Category

Intel N100 / N305 Micro Node

Other use cases