NAS Devices under $400

5 NAS devices under $400 from Synology, UGREEN and Buffalo. Most cost $320 to $399, and half cost less than $360.

UGREENSpec score 8.7

4 Bays, Diskless, Desktop

+Four drive bays for a larger storage pool

+Docker support for running extra apps

+Desktop form factor

−Diskless, drives must be bought separately

$386.12

as of 11/04/2026 03:05 PST - Details

MrrouteSpec score 8.9

4 Bays, Intel, 2.5GbE

+Four NVMe bays for high-speed solid state storage

+Intel i3-N305 processor for everyday server tasks

+Dual 2.5GbE LAN ports for faster network transfers

$319.90

as of 11/04/2026 02:11 PST - Details

YxkSpec score 9.5

4 Bays, Intel, 8GB, 2.5GbE

+4 bays: the most bays of the 12 here

+2.5GbE: the highest fastest port of the 5 here

$359.99

as of 11/04/2026 10:06 PST - Details

AsustorSpec score 8.3

4 Bays, 2GB, 2.5GbE, Diskless

+4 bays: the most bays of the 12 here

+2.5GbE: the highest fastest port of the 5 here

$356.99

as of 11/04/2026 10:11 PST - Details

Synology

4 Bays, Diskless

+4 bays: the most bays of the 12 here

$399.99

as of 11/04/2026 10:09 PST - Details

Compare specs

Bays	Drives	Spec score	Price
4	Diskless	8.7	$386.12 as of 11/04/2026 03:05 PST - Details
4		8.9	$319.90 as of 11/04/2026 02:11 PST - Details
4	Diskless	9.5	$359.99 as of 11/04/2026 10:06 PST - Details
4	Diskless	8.3	$356.99 as of 11/04/2026 10:11 PST - Details
4	Diskless	n/a	$399.99 as of 11/04/2026 10:09 PST - Details

Spec scores, pros and cons, and prices are explained in the How it works section of the About page.