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Product comparison · 2 nas & storage servers

QNAP TS-421 + 4x 1TBWDRED vs QNAP TS-421U + 4x 1TBWDRED

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  • 67specifications compared
  • 11differ
  • 56identical
  • 1known for one product only

Key differences

The QNAP TS-421 + 4x 1TBWDRED has 5 cm more fan diameter than the QNAP TS-421U + 4x 1TBWDRED (9 cm vs 4 cm). The QNAP TS-421U + 4x 1TBWDRED has 214 W more power supply unit (PSU) capacity than the QNAP TS-421 + 4x 1TBWDRED (250 W vs 36 W). The QNAP TS-421U + 4x 1TBWDRED has 259 mm more width than the QNAP TS-421 + 4x 1TBWDRED (439 mm vs 180 mm). Only the QNAP TS-421 + 4x 1TBWDRED has external power adapter. Supported storage drive types: HDD & SSD on the QNAP TS-421 + 4x 1TBWDRED, HDD on the QNAP TS-421U + 4x 1TBWDRED.

  • Supported storage drive types
    • HDD & SSD
    • HDD
  • Chassis type
    • Tower
    • Rack (1U)
  • Fan diameter
    • 9 cm
    • 4 cm
  • LED indicators
    • eSATA, HDD, LAN, Status, USB
    • HDD, LAN, Status, USB
  • Device class
    • Home & Home Office
    • Small & Medium Business
  • Power supply location
    • External
    • Built-in
  • Power supply unit (PSU) capacity
    • 36 W
    • 250 W
  • Width
    • 180 mm
    • 439 mm

Side by side

Differences highlightedShow differences only
68 specifications
A

QNAP

TS-421 + 4x 1TBWDREDView product
B

QNAP

TS-421U + 4x 1TBWDREDView product
Storage1 differ
Supported storage drive typesDiffersHDD & SSDHDD
Design3 differ
Chassis typeDiffersTowerRack (1U)
Fan diameterDiffers9 cm4 cm
LED indicatorsDifferseSATA, HDD, LAN, Status, USBHDD, LAN, Status, USB
Performance1 differ
Device classDiffersHome & Home OfficeSmall & Medium Business
Power2 differ
Power supply locationDiffersExternalBuilt-in
Power supply unit (PSU) capacityDiffers36 W250 W
Fan voltageKnown for one12 V
Weight & dimensions3 differ
WidthDiffers180 mm439 mm
DepthDiffers235 mm483 mm
HeightDiffers177 mm44 mm
Packaging content1 differ
External power adapterDiffersYesNo

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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