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Product comparison · 2 nas & storage servers

QNAP TS-221 6TB vs QNAP TS-421 8TB

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  • 61specifications compared
  • 15differ
  • 46identical
  • 6known for one product only

Key differences

  • Total installed storage capacity
    • 6 TB
    • 8 TB
  • Number of storage drives installed
    • 2
    • 4
  • Number of storage drives supported
    • 2
    • 4
  • Storage drive capacity
    • 3 TB
    • 2 TB
  • Maximum supported storage capacity
    • 8 TB
    • 16 TB
  • Ethernet LAN (RJ-45) ports
    • 1
    • 2
  • USB 2.0 ports quantity
    • 1
    • 2
  • LED indicators
    • HDD, LAN, Status, USB
    • eSATA, HDD, LAN, Status, USB

Side by side

Differences highlightedShow differences only
67 specifications
A

QNAP

TS-221 6TBView product
B

QNAP

TS-421 8TBView product
Storage5 differ
Total installed storage capacityDiffers6 TB8 TB
Number of storage drives installedDiffers24
Number of storage drives supportedDiffers24
Storage drive capacityDiffers3 TB2 TB
Maximum supported storage capacityDiffers8 TB16 TB
RAID levelsKnown for one0, 1, JBOD
Networkidentical
Jumbo frames supportKnown for oneYes
Ports & interfaces2 differ
Ethernet LAN (RJ-45) portsDiffers12
USB 2.0 ports quantityDiffers12
Design1 differ
LED indicatorsDiffersHDD, LAN, Status, USBeSATA, HDD, LAN, Status, USB
Display typeKnown for oneLCD
Performance1 differ
Number of usersDiffers2048 user(s)4096 user(s)
Noise levelKnown for one25.3 dB
Noise level (idle)Known for one11.9 dB
Security algorithmsKnown for oneHTTPS, SSH, SSL/TLS
Power2 differ
Power supply unit (PSU) capacityDiffers60 W120 W
Power consumption (sleep)Differs8 W13 W
Weight & dimensions4 differ
WidthDiffers102 mm180 mm
DepthDiffers216 mm235 mm
HeightDiffers150 mm177 mm
WeightDiffers1.74 kg3 kg

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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