4-Bay NAS Devices

All NAS Devices

17 4-Bay NAS devices from QNAP, Synology, Buffalo and more. Most cost $429 to $2,299, and half cost less than $770.

Top brands: QNAP (7)Synology (5)

TerraMasterSpec score 7.7

4 Bays, Intel, 4GB, 2.5GbE

+4 bays: the most bays of the 84 here

$429.99

as of 11/04/2026 09:07 PST - Details

LincPlusSpec score 8.2

4 Bays, ARM, 4GB, 2.5GbE

+4 drive bays

+2.5GbE network port

+4K HDMI 2.0 output

−Ships diskless, drives must be bought separately

−Uses an ARM processor

$185.99-15%List: ~~$219.99~~

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

QNAPSpec score 8.5

4 Bays, ARM, 4GB, 10GbE

+Four drive bays for a 4-bay storage array

+10GbE network ports for fast file transfers

+M.2 NVMe SSD slot for faster caching

−ARM processor rather than Intel

−Rackmount form needs a server rack

$886.99

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

AsustorSpec score 8.2

4 Bays, 4GB, 2.5GbE, Diskless

+Four drive bays with two M.2 SSD slots

+Dual 2.5GbE ports for faster transfers

+Media server support included

−Drives sold separately, must be purchased

−Only 4GB of RAM

$1,542.60

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

QNAPSpec score 8.2

4 Bays, Intel, 4GB, 2.5GbE

+Four drive bays for expanding storage capacity

+M.2 slots for fast cache or SSD storage

+2.5GbE network port for faster transfers

−Only 4GB RAM included

−Diskless, so drives must be bought separately

$529.99

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

SynologySpec score 8.2

4 Bays, AMD, 4GB, 2.5GbE

+Four drive bays for expanding storage capacity

+Includes four 4TB Seagate IronWolf drives for 16TB

+Two 2.5GbE ports for faster network transfers

−Desktop form factor takes up desk space

$2,199.00

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

SynologySpec score 7.7

4 Bays, 4GB, 2.5GbE, Drives included

+Four drive bays for expanding storage capacity

+Includes four 4TB Seagate IronWolf Pro drives for 16TB

+2.5GbE network port for faster transfers than standard gigabit

−Desktop form factor takes up desk space

$2,299.00

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

QNAPSpec score 8.0

4 Bays, 4GB, 10GbE, Desktop

+Two 2.5GbE ports and two 10GbE SFP+ ports

+Four drive bays for expandable storage

+Quad-core processor for file serving tasks

−Only 4 GB of RAM limits multitasking

No current price. Check it at the store.

AsustorSpec score 8.3

4 Bays, Intel, 4GB, 5GbE

+4 bays: the most bays of the 84 here

+M.2 SSD slots: only 25 of 84 here have one

$681.99

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

SynologySpec score 8.2

4 Bays, AMD, 4GB, 2.5GbE

+Four drive bays for expanding storage capacity

+Includes four 4TB WD Red Plus drives for 16TB

+Two 2.5GbE ports for faster network transfers

−Desktop form factor takes up desk space

$2,299.00

as of 11/04/2026 09:07 PST - Details

QNAPSpec score 8.0

4 Bays, ARM, 4GB, 10GbE

+Four drive bays for a 4-bay storage array

+10GbE network ports for fast file transfers

+Short-depth 1U design fits shallow racks

−ARM processor rather than Intel

−Rackmount form needs a server rack

$679.00

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

SynologySpec score 7.7

4 Bays, AMD, 4GB, 2.5GbE

+Four drive bays for expanding storage capacity

+Supports expansion up to nine bays

+2.5GbE network port for faster transfers than standard gigabit

−Drives are not included, so you must buy them separately

$769.99

as of 11/04/2026 09:07 PST - Details

SynologySpec score 7.7

4 Bays, 4GB, 2.5GbE, Drives included

+Four drive bays for expanding storage capacity

+Includes four 8TB WD Red Plus drives for 32TB

+2.5GbE network port for faster transfers than standard gigabit

−Desktop form factor takes up desk space

$2,749.00

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

QNAPSpec score 7.7

4 Bays, ARM, 4GB, 2.5GbE

+Four drive bays for a 4-bay storage array

+4GB RAM for multitasking

+Quad-core processor for steady performance

−Ships diskless, so drives must be bought separately

−ARM processor rather than Intel

No price recorded yet.

QNAPSpec score 7.7

4 Bays, Intel, 4GB, 2.5GbE

+Four drive bays for a 4-bay storage array

+Intel Celeron J4125 processor

+Two 2.5GbE network ports

$1,431.73

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

AsustorSpec score 8.2

4 Bays, Intel, 4GB, 2.5GbE

+4 bays: the most bays of the 84 here

+M.2 SSD slots: only 25 of 84 here have one

$582.99

as of 11/04/2026 09:07 PST - Details

QNAPSpec score 7.7

4 Bays, ARM, 4GB, 2.5GbE

+4 bays: the most bays of the 84 here

$429.00

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

Compare specs

Bays	Processor	Memory	Fastest port	Drives	Spec score	Price
4	Intel	4GB	2.5GbE	Diskless	7.7	$429.99 as of 11/04/2026 09:07 PST - Details
4	ARM	4GB	2.5GbE	Diskless	8.2	$185.99 as of 11/04/2026 10:10 PST - Details
4	ARM	4GB	10GbE		8.5	$886.99 as of 11/04/2026 10:10 PST - Details
4		4GB	2.5GbE	Diskless	8.2	$1,542.60 as of 11/04/2026 10:11 PST - Details
4	Intel	4GB	2.5GbE	Diskless	8.2	$529.99 as of 11/04/2026 11:05 PST - Details
4	AMD	4GB	2.5GbE	Drives included	8.2	$2,199.00 as of 11/04/2026 10:09 PST - Details
4		4GB	2.5GbE	Drives included	7.7	$2,299.00 as of 11/04/2026 03:05 PST - Details
4		4GB	10GbE		8.0	No current price
4	Intel	4GB	5GbE	Diskless	8.3	$681.99 as of 11/04/2026 11:05 PST - Details
4	AMD	4GB	2.5GbE	Drives included	8.2	$2,299.00 as of 11/04/2026 09:07 PST - Details

Before you buy

NAS Buying Basics: Bays, RAID and Drives

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

4-Bay NAS Devices

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