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Product comparison · 2 internal hard drives

Samsung 400GB Serial ATA II HDD, Retail vs Samsung 400GB Ultra-ATA/133 HDD, Retail

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  • 26specifications compared
  • 5differ
  • 21identical
  • 7known for one product only

Key differences

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

  • 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
33 specifications
A

Samsung

400GB Serial ATA II HDD, RetailView product
B

Samsung

400GB Ultra-ATA/133 HDD, RetailView product
Features2 differ
HDD capacity400 GB400 GB
HDD speed7200 RPM7200 RPM
HDD size3.5"3.5"
InterfaceDiffersSerial ATA IIUltra-ATA/133
Storage drive buffer sizeDiffers16 MB8 MB
Full stroke seek time18 ms18 ms
Track to track seek time0.8 ms0.8 ms
Average seek time8.9 ms8.9 ms
Average latency4.17 ms4.17 ms
Bytes per sector512512
Start/stop cyclesKnown for one50000
Mean time between failures (MTBF)600000 h600000 h
Power2 differ
Power consumption (typical)Differs10 W9.6 W
Power consumption (standby)Differs1.3 W0.45 W
Operating voltage5 / 12 V5 / 12 V
Operational conditionsidentical
Operating temperature (T-T)0 - 60 °C0 - 60 °C
Storage temperature (T-T)-40 - 70 °C-40 - 70 °C
Operating relative humidity (H-H)5 - 90%5 - 90%
Storage relative humidity (H-H)5 - 95%5 - 95%
Operating shock63 G63 G
Non-operating shock300 G300 G
Operating altitudeKnown for one0 - 3000 m
Non-operating altitudeKnown for one0 - 12000 m
Weight & dimensionsidentical
Width147 mm147 mm
Depth101.6 mm101.6 mm
Height26.1 mm26.1 mm
WeightKnown for one651 g
Other features1 differ
Power requirementsDiffers+5V±5%;+12V±10%+5V; +12V
Drive device, transfer rateKnown for one133 MB/s
Drive ready time10 s10 s
InternalYesYes
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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