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Product comparison · 2 internal hard drives

Seagate 146GB 3.5" SAS vs Seagate SV35.4 SATA 320-GB

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  • 17specifications compared
  • 14differ
  • 3identical
  • 20known for one product only

Key differences

  • HDD capacity
    • 146 GB
    • 320 GB
  • HDD speed
    • 15000 RPM
    • 7200 RPM
  • Interface
    • SAS
    • Serial ATA
  • Component for
    • Server/workstation
    • Surveillance system
  • HDD number of heads
    • 3
    • 2
  • Read seek time
    • 3.4 ms
    • 14 ms
  • Write seek time
    • 3.9 ms
    • 15 ms
  • Track to track seek time
    • 0.2 ms
    • 1 ms

Side by side

Differences highlightedShow differences only
37 specifications
A

Seagate

146GB 3.5" SASView product
B

Seagate

SV35.4 SATA 320-GBView product
Features8 differ
HDD capacityDiffers146 GB320 GB
HDD speedDiffers15000 RPM7200 RPM
HDD sizeKnown for one3.5"
InterfaceDiffersSASSerial ATA
TypeKnown for oneHDD
Component forDiffersServer/workstationSurveillance system
HDD number of headsDiffers32
Read seek timeDiffers3.4 ms14 ms
Write seek timeDiffers3.9 ms15 ms
Track to track seek timeDiffers0.2 ms1 ms
Average latencyKnown for one2 ms
Mean time between failures (MTBF)Known for one1600000 h
Bytes per sectorKnown for one512
Poweridentical
Operating voltageKnown for one5 / 12 V
Operational conditions3 differ
Operating temperature (T-T)Differs5 - 55 °C0 - 75 °C
Operating vibrationKnown for one1 Gs
Non-operating vibrationKnown for one2 Gs
Operating shockDiffers60 G70 G
Non-operating shockDiffers250 G350 G
Operating relative humidity (H-H)Known for one5 - 90%
Storage relative humidity (H-H)Known for one5 - 95%
Operating altitudeKnown for one-60.96 - 3048 m
Non-operating altitudeKnown for one-60.96 - 12192 m
Weight & dimensions1 differ
WidthKnown for one101.6 mm
DepthKnown for one146.1 mm
HeightKnown for one25.4 mm
WeightDiffers0.674 g380 g
Other features2 differ
HDD transfer rateDiffers1051 Mbit/s1201 Mbit/s
Fibre ChannelKnown for oneYes
Sustained data rateDiffers171 MB/s90 MB/s
Dimensions (WxDxH)Known for one101.85 x 146.99 x 20.20 mm
Disks included quantityKnown for one1 pc(s)
Drive device, transfer rateKnown for one300 MB/s
Recording densityKnown for one1242 kbit/inch

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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