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Product comparison · 2 nas & storage servers

QNAP TS-221 + 2x 3TBWDRED vs QNAP TS-421U + 4x 1TBWDRED

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  • 64specifications compared
  • 19differ
  • 45identical
  • 7known for one product only

Key differences

  • Total installed storage capacity
    • 6 TB
    • 4 TB
  • Number of storage drives installed
    • 2
    • 4
  • Number of storage drives supported
    • 2
    • 4
  • Supported storage drive types
    • HDD & SSD
    • HDD
  • Storage drive capacity
    • 3 TB
    • 1 TB
  • RAID levels
    • 0, 1, JBOD
    • 0, 1, 5, 6, 10, JBOD
  • Ethernet LAN (RJ-45) ports
    • 1
    • 2
  • USB 2.0 ports quantity
    • 1
    • 2

Side by side

Differences highlightedShow differences only
71 specifications
A

QNAP

TS-221 + 2x 3TBWDREDView product
B

QNAP

TS-421U + 4x 1TBWDREDView product
Storage6 differ
Total installed storage capacityDiffers6 TB4 TB
Number of storage drives installedDiffers24
Number of storage drives supportedDiffers24
Supported storage drive typesDiffersHDD & SSDHDD
Storage drive capacityDiffers3 TB1 TB
RAID levelsDiffers0, 1, JBOD0, 1, 5, 6, 10, JBOD
Network1 differ
Jumbo frames supportKnown for oneYes
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
Ports & interfaces2 differ
Ethernet LAN (RJ-45) portsDiffers12
USB 2.0 ports quantityDiffers12
Design2 differ
Chassis typeDiffersTowerRack (1U)
Fan diameterDiffers7 cm4 cm
Performance2 differ
Device classDiffersHome & Home OfficeSmall & Medium Business
Number of usersDiffers2048 user(s)4096 user(s)
Softwareidentical
Operating system installedKnown for oneQNAP Turbo System
Power2 differ
Power supply locationDiffersExternalBuilt-in
Power supply unit (PSU) capacityDiffers60 W250 W
AC input frequencyKnown for one50 - 60 Hz
Fan voltageKnown for one12 V
Power consumption (typical)Known for one16 W
Power consumption (sleep)Known for one8 W
Weight & dimensions3 differ
WidthDiffers102 mm439 mm
DepthDiffers216 mm483 mm
HeightDiffers150 mm44 mm
Packaging content1 differ
External power adapterDiffersYesNo
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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