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Product comparison · 2 internal hard drives

Samsung 400GB Serial ATA II HDD, 20-pack vs Samsung 400GB Ultra-ATA/133 HDD, 20-Pk

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  • 21specifications compared
  • 5differ
  • 16identical
  • 11known for one product only

Key differences

The Samsung 400GB Serial ATA II HDD, 20-pack has 8 MB more storage drive buffer size than the Samsung 400GB Ultra-ATA/133 HDD, 20-Pk (16 MB vs 8 MB). The Samsung 400GB Serial ATA II HDD, 20-pack has 0.4 W more power consumption (typical) than the Samsung 400GB Ultra-ATA/133 HDD, 20-Pk (10 W vs 9.6 W). The Samsung 400GB Serial ATA II HDD, 20-pack has 0.85 W more power consumption (standby) than the Samsung 400GB Ultra-ATA/133 HDD, 20-Pk (1.3 W vs 0.45 W). Interface: Serial ATA II on the Samsung 400GB Serial ATA II HDD, 20-pack, Ultra-ATA/133 on the Samsung 400GB Ultra-ATA/133 HDD, 20-Pk. Power requirements: +5V±5%;+12V±10% on the Samsung 400GB Serial ATA II HDD, 20-pack, +5V; +12V on the Samsung 400GB Ultra-ATA/133 HDD, 20-Pk.

  • Interface
    • Serial ATA II
    • Ultra-ATA/133
  • Storage drive buffer size
    • 16 MB
    • 8 MB
  • Power consumption (typical)
    • 10 W
    • 9.6 W
  • Power consumption (standby)
    • 1.3 W
    • 0.45 W
  • Power requirements
    • +5V±5%;+12V±10%
    • +5V; +12V

Side by side

Differences highlightedShow differences only
32 specifications
A

Samsung

400GB Serial ATA II HDD, 20-packView product
B

Samsung

400GB Ultra-ATA/133 HDD, 20-PkView product
Features2 differ
HDD sizeKnown for one3.5"
InterfaceDiffersSerial ATA IIUltra-ATA/133
Storage drive buffer sizeDiffers16 MB8 MB
Start/stop cyclesKnown for one50000
Power2 differ
Power consumption (typical)Differs10 W9.6 W
Power consumption (standby)Differs1.3 W0.45 W
Operating voltageKnown for one5 / 12 V
Operational conditionsidentical
Non-operating altitudeKnown for one12000
Weight & dimensionsidentical
WidthKnown for one147 mm
DepthKnown for one101.6 mm
HeightKnown for one26.1 mm
WeightKnown for one651 g
Other features1 differ
Power requirementsDiffers+5V±5%;+12V±10%+5V; +12V
Drive device, transfer rateKnown for one133 MB/s
Acoustic pressure emissionsKnown for one2.8 dB
HDD transfer rateKnown for one1000 Mbit/s

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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