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Product comparison · 2 nas & storage servers

QNAP TS-420 + 4x 1TBWDRED vs QNAP TS-421U + 4x 3TBWDRED

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  • 66specifications compared
  • 17differ
  • 49identical
  • 5known for one product only

Key differences

The QNAP TS-421U + 4x 3TBWDRED has 8 TB more total installed storage capacity than the QNAP TS-420 + 4x 1TBWDRED (12 TB vs 4 TB). The QNAP TS-421U + 4x 3TBWDRED has 2 TB more storage drive capacity than the QNAP TS-420 + 4x 1TBWDRED (3 TB vs 1 TB). The QNAP TS-421U + 4x 3TBWDRED has 0.4 GHz more processor frequency than the QNAP TS-420 + 4x 1TBWDRED (2 GHz vs 1.6 GHz). Supported storage drive types: HDD & SSD on the QNAP TS-420 + 4x 1TBWDRED, HDD on the QNAP TS-421U + 4x 3TBWDRED. Chassis type: Tower on the QNAP TS-420 + 4x 1TBWDRED, Rack (1U) on the QNAP TS-421U + 4x 3TBWDRED.

  • Total installed storage capacity
    • 4 TB
    • 12 TB
  • Supported storage drive types
    • HDD & SSD
    • HDD
  • Storage drive capacity
    • 1 TB
    • 3 TB
  • Processor frequency
    • 1.6 GHz
    • 2 GHz
  • Internal memory
    • 0.512 GB
    • 1 GB
  • Chassis type
    • Tower
    • Rack (1U)
  • Number of fans
    • 1 fan(s)
    • 2 fan(s)
  • Fan diameter
    • 9 cm
    • 4 cm

Side by side

Differences highlightedShow differences only
71 specifications
A

QNAP

TS-420 + 4x 1TBWDREDView product
B

QNAP

TS-421U + 4x 3TBWDREDView product
Storage3 differ
Total installed storage capacityDiffers4 TB12 TB
Supported storage drive typesDiffersHDD & SSDHDD
Storage drive capacityDiffers1 TB3 TB
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
Design3 differ
Chassis typeDiffersTowerRack (1U)
Number of fansDiffers1 fan(s)2 fan(s)
Fan diameterDiffers9 cm4 cm
Performance2 differ
TypeDiffersNASStorage server
Device classDiffersHome & Home OfficeSmall & Medium Business
Security algorithmsKnown for oneHTTPS, SSH, SSL/TLS
Software1 differ
Operating system versionKnown for one4.0
Windows operating systems supportedDiffersWindows 7 Home Basic, Windows 7 Home Basic x64, Windows 7 Home Premium, Windows 7 Home Premium x64, Windows 7 Professional, Windows 7 Professional x64, Windows 7 Starter, Windows 7 Starter x64, Windows 7 Ultimate, Windows 7 Ultimate x64, Windows 8, Windows 8 Enterprise, Windows 8 Enterprise x64, WinWindows 7 Home Basic, Windows 7 Home Basic x64, Windows 7 Home Premium, Windows 7 Home Premium x64, Windows 7 Professional, Windows 7 Professional x64, Windows 7 Starter, Windows 7 Ultimate, Windows 7 Ultimate x64, Windows 8, Windows 8 Enterprise, Windows 8 Enterprise x64, Windows 8 Pro, Windows 8 P
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 contentidentical
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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