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Product comparison · 2 nas & storage servers

QNAP TS-420 + 4x 1TBWDRED vs QNAP TS-421U + 4x 1TBWDRED

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  • 66specifications compared
  • 13differ
  • 53identical
  • 5known for one product only

Key differences

  • Supported storage drive types
    • HDD & SSD
    • HDD
  • Processor frequency
    • 1.6 GHz
    • 2 GHz
  • Internal memory
    • 0.512 GB
    • 1 GB
  • Chassis type
    • Tower
    • Rack (1U)
  • Fan diameter
    • 9 cm
    • 4 cm
  • Device class
    • Home & Home Office
    • Small & Medium Business
  • Power supply location
    • External
    • Built-in
  • Power supply unit (PSU) capacity
    • 36 W
    • 250 W

Side by side

Differences highlightedShow differences only
71 specifications
A

QNAP

TS-420 + 4x 1TBWDREDView product
B

QNAP

TS-421U + 4x 1TBWDREDView product
Storage1 differ
Supported storage drive typesDiffersHDD & SSDHDD
Maximum supported storage capacityKnown for one16 TB
Processor1 differ
Processor frequencyDiffers1.6 GHz2 GHz
Memory1 differ
Internal memoryDiffers0.512 GB1 GB
Network1 differ
Supported network protocolsDiffersCIFS/SMB, AFP (v3.3), NFS (v3), FTP, FTPS, SFTP, TFTP, HTTP(S), Telnet, SSH, iSCSI, SNMP, SMTP, SMSCCIFS/SMB, AFP (v3.3), NFS(v3), FTP, FTPS, SFTP, TFTP, HTTP(S), Telnet, SSH, iSCSI, SNMP, SMTP, SMSC
Design2 differ
Chassis typeDiffersTowerRack (1U)
Fan diameterDiffers9 cm4 cm
Performance1 differ
Device classDiffersHome & Home OfficeSmall & Medium Business
Security algorithmsKnown for oneHTTPS, SSH, SSL/TLS
Softwareidentical
Operating system versionKnown for one4.0
Power2 differ
Power supply locationDiffersExternalBuilt-in
Power supply unit (PSU) capacityDiffers36 W250 W
Weight & dimensions3 differ
WidthDiffers180 mm439 mm
DepthDiffers235 mm483 mm
HeightDiffers177 mm44 mm
Packaging content1 differ
External power adapterDiffersYesNo
Quick installation guideKnown for oneYes
Other featuresidentical
Compliance certificatesKnown for oneRoHS

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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