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Product comparison · 2 nas & storage servers

QNAP TS-251 NAS/storage server Tower Intel® Celeron® vs QNAP TS-651 NAS/storage server Tower Intel® Celeron®

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  • 66specifications compared
  • 14differ
  • 52identical
  • 7known for one product only

Key differences

  • Number of storage drives supported
    • 2
    • 6
  • RAID levels
    • 0, 1, JBOD
    • 0, 1, 5, 6, 10, JBOD
  • USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity
    • 2
    • 3
  • Product colour
    • White
    • Black
  • Number of fans
    • 1 fan(s)
    • 2 fan(s)
  • Fan diameter
    • 7 cm
    • 9 cm
  • Power supply unit (PSU) capacity
    • 60 W
    • 250 W
  • Power consumption (typical)
    • 19.22 W
    • 39.42 W

Side by side

Differences highlightedShow differences only
73 specifications
A

QNAP

TS-251 NAS/storage server Tower Intel® Celeron®

Model TS-251

View product
B

QNAP

TS-651 NAS/storage server Tower Intel® Celeron®

Model TS-651

View product
Storage3 differ
Total installed storage capacityKnown for one0 TB
Number of storage drives supportedDiffers26
RAID levelsDiffers0, 1, JBOD0, 1, 5, 6, 10, JBOD
Supported file systemsDiffersext3, ext4, FAT32, HFS+, NTFSext4, FAT32, HFS+, NTFS
Ports & interfaces1 differ
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantityDiffers23
Design3 differ
Product colourDiffersWhiteBlack
Number of fansDiffers1 fan(s)2 fan(s)
Fan diameterDiffers7 cm9 cm
Performanceidentical
Management protocolsKnown for oneSNMP v2 & v3
Softwareidentical
Linux operating systems supportedKnown for oneYes
Power2 differ
Power supply unit (PSU) capacityDiffers60 W250 W
Power consumption (typical)Differs19.22 W39.42 W
Power consumption (sleep)Known for one0.41 W
AC input frequencyKnown for one50 - 60 Hz
Redundant power supply (RPS) supportKnown for oneNo
Weight & dimensions5 differ
WidthDiffers102 mm257 mm
DepthDiffers225 mm235 mm
HeightDiffers168.5 mm175 mm
WeightDiffers1.28 kg6.18 kg
Package weightDiffers2.32 kg6.9 kg
Packaging contentidentical
External power adapterKnown for oneYes

A dash means the value is not stated by the source. Unknown values are never counted for or against a product, and there is no overall score.

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