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4-Bay NAS Devices

All NAS Devices

17 4-Bay NAS devices from QNAP, Synology, Buffalo and more. Most cost $360 to $1,299, and half cost less than $725.

Top brands: QNAP (7)UGREEN (5)

All filtersFilters (2)×
Bays: 4  ×Memory: 8GB  ×Clear all
BrandQNAP7UGREEN5TerraMaster3Acemagic1Yxk1
Bays417
ProcessorIntel10AMD5
Memory4GB178GB172GB864GB41GB332GB2
Fastest port2.5GbE910GbE45GbE31GbE1
DrivesDiskless13Drives included1
BodyDesktop6Rackmount2
PriceUnder $3001Under $4001Under $6001Under $7004Under $8002Under $9002$500 & above12$700 & above7$1,500 & above1$2,500 & above1
Clear allShow 17 NAS Devices
Bays: 4  ×Memory: 8GB  ×17 resultsSort byRecommendedSpec scorePrice: low to highPrice: high to low
UGREENSpec score 9.1

4 Bays, AMD, 8GB, 10GbE

+Four drive bays for a larger storage pool
+M.2 slot for an SSD cache or fast storage
+10GbE network port for fast transfers
−Diskless, drives must be bought separately
$659.99
as of 11/04/2026 10:09 PST - Details
UGREENSpec score 8.6

4 Bays, Intel, 8GB, 10GbE

+Four drive bays for a larger storage pool
+10GbE network port for fast transfers
+Intel processor with hardware transcoding support
−Sold diskless, drives must be bought separately
$619.99-15%List: $729.99
as of 11/04/2026 10:06 PST - Details
TerraMasterSpec score 8.8

4 Bays, Intel, 8GB, 5GbE

+4 bays: the most bays of the 84 here
+8GB memory: only 6 of 51 here have a higher memory
$599.99-8%List: $649.99
as of 11/04/2026 03:05 PST - Details
UGREENSpec score 8.6

4 Bays, AMD, 8GB, 10GbE

+Four drive bays for expanding storage capacity
+10GbE network port for fast network transfers
+AMD processor with 8GB RAM
−Ships diskless, so drives must be purchased separately
$654.62-2%List: $667.98
as of 11/04/2026 03:05 PST - Details
AcemagicSpec score 8.6

4 Bays, 8GB, 1GbE, Diskless

+Four bays for expanded storage capacity
+Two M.2 slots for solid state storage
+Docker and media support for apps and streaming
−Diskless, drives must be purchased separately
$290.00
as of 11/04/2026 09:07 PST - Details
QNAPSpec score 8.2

4 Bays, Intel, 8GB, 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
−Desktop form factor takes more space than rackmount
$749.00
as of 11/04/2026 09:07 PST - Details
QNAPSpec score 8.2

4 Bays, AMD, 8GB, 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
−Diskless, so drives must be bought separately
$898.28
as of 11/04/2026 06:09 PST - Details
UGREENSpec score 8.2

4 Bays, 8GB, 2.5GbE, Diskless

+4 bays: the most bays of the 84 here
+8GB memory: only 6 of 51 here have a higher memory
No price recorded yet.
TerraMasterSpec score 8.8

4 Bays, Intel, 8GB, 5GbE

+Four drive bays for a multi-drive storage setup
+Two 5GbE ports for faster network transfers
+Three M.2 slots for solid-state storage or cache
−Ships diskless, so drives must be bought separately
$699.99
as of 11/04/2026 10:11 PST - Details
QNAPSpec score 8.2

4 Bays, Intel, 8GB, 2.5GbE

+Four drive bays for expanding storage capacity
+Short-depth 1U rackmount design saves rack space
+M.2 slots for fast cache or SSD storage
−Diskless, so drives must be bought separately
$849.00
as of 11/04/2026 09:07 PST - Details
QNAPSpec score 8.2

4 Bays, Intel, 8GB, 2.5GbE

+Four drive bays for expanding storage capacity
+Two M.2 slots for SSD cache or storage
+2.5GbE network port for faster transfers than gigabit
−Drives sold separately, not included
$1,299.00
as of 11/04/2026 03:05 PST - Details
TerraMasterSpec score 7.8

4 Bays, Intel, 8GB, 5GbE

+Four drive bays for a multi-drive storage setup
+5GbE port for faster network transfers
+Compact palm-sized design
−Ships diskless, so drives must be bought separately
No price recorded yet.
QNAPSpec score 7.7

4 Bays, Intel, 8GB, 2.5GbE

+Four drive bays for expanding storage capacity
+Rackmount design fits server racks
+Dual 2.5GbE network ports for faster transfers
$1,099.00
as of 11/04/2026 03:05 PST - Details
QNAPSpec score 7.7

4 Bays, AMD, 8GB, 2.5GbE

+Four drive bays for expanding storage capacity
+AMD Ryzen Embedded quad-core CPU at 2.2GHz
+Dual 2.5GbE network ports for faster transfers
$4,427.17
as of 11/04/2026 03:05 PST - Details
QNAPSpec score 8.2

4 Bays, AMD, 8GB, 2.5GbE

+Four drive bays for expanding storage capacity
+M.2 slots for fast cache or SSD storage
+Dual 2.5GbE network ports for faster transfers
No price recorded yet.
YxkSpec score 8.7

4 Bays, Intel, 8GB, 2.5GbE

+4 bays: the most bays of the 84 here
+8GB memory: only 6 of 51 here have a higher memory
$359.99
as of 11/04/2026 10:06 PST - Details
UGREENSpec score 8.6

4 Bays, Intel, 8GB, 10GbE

+4 bays: the most bays of the 84 here
+10GbE: the highest fastest port of the 66 here
$799.99
as of 11/04/2026 10:06 PST - Details

Compare specs

NAS deviceBaysProcessorMemoryFastest portDrivesSpec scorePrice
4AMD8GB10GbEDiskless9.1$659.99
as of 11/04/2026 10:09 PST - Details
4Intel8GB10GbEDiskless8.6$619.99
as of 11/04/2026 10:06 PST - Details
4Intel8GB5GbEDiskless8.8$599.99
as of 11/04/2026 03:05 PST - Details
4AMD8GB10GbEDiskless8.6$654.62
as of 11/04/2026 03:05 PST - Details
48GB1GbEDiskless8.6$290.00
as of 11/04/2026 09:07 PST - Details
4Intel8GB2.5GbE8.2$749.00
as of 11/04/2026 09:07 PST - Details
4AMD8GB2.5GbEDiskless8.2$898.28
as of 11/04/2026 06:09 PST - Details
48GB2.5GbEDiskless8.2No current price
4Intel8GB5GbEDiskless8.8$699.99
as of 11/04/2026 10:11 PST - Details
4Intel8GB2.5GbEDiskless8.2$849.00
as of 11/04/2026 09:07 PST - Details

Before you buy

Other Bays options

RAID and HBA Cards868KVM Switches623PDUs683Server Racks640Room Cooling and Sensors902Servers229UPS Battery Backups583Binoculars228Network Cables1,382Cameras2,556PC Cases264Chromebooks196

Popular filters

Rackmount NAS Devices145NAS Devices with Intel Processors143NAS Devices with Drives Included13910GbE NAS Devices132Desktop NAS Devices118Diskless NAS Devices108NAS Devices with AMD Processors872.5GbE NAS Devices78

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