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Product comparison · 2 internal hard drives

Seagate EE25.1 20 GB 5400 rpm 8 MB Ultra ATA/100 vs Seagate NL35 Series 250GB SATA 20pk

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  • 15specifications compared
  • 14differ
  • 1identical
  • 19known for one product only

Key differences

The Seagate NL35 Series 250GB SATA 20pk has 230 GB more HDD capacity than the Seagate EE25.1 20 GB 5400 rpm 8 MB Ultra ATA/100 (250 GB vs 20 GB). The Seagate NL35 Series 250GB SATA 20pk has 1,800 RPM more HDD speed than the Seagate EE25.1 20 GB 5400 rpm 8 MB Ultra ATA/100 (7200 RPM vs 5400 RPM). The Seagate NL35 Series 250GB SATA 20pk has 1" more HDD size than the Seagate EE25.1 20 GB 5400 rpm 8 MB Ultra ATA/100 (3.5" vs 2.5"). Interface: Ultra-ATA/100 on the Seagate EE25.1 20 GB 5400 rpm 8 MB Ultra ATA/100, Serial ATA on the Seagate NL35 Series 250GB SATA 20pk. Operating voltage: 5 V on the Seagate EE25.1 20 GB 5400 rpm 8 MB Ultra ATA/100, 5 / 12 V on the Seagate NL35 Series 250GB SATA 20pk.

  • HDD capacity
    • 20 GB
    • 250 GB
  • HDD speed
    • 5400 RPM
    • 7200 RPM
  • HDD size
    • 2.5"
    • 3.5"
  • Interface
    • Ultra-ATA/100
    • Serial ATA
  • Storage drive buffer size
    • 8 MB
    • 16 MB
  • Read seek time
    • 12.5 ms
    • 5 ms
  • Write seek time
    • 14.5 ms
    • 9 ms
  • Operating voltage
    • 5 V
    • 5 / 12 V

Side by side

Differences highlightedShow differences only
34 specifications
A

Seagate

EE25.1 20 GB 5400 rpm 8 MB Ultra ATA/100View product
B

Seagate

NL35 Series 250GB SATA 20pkView product
Features7 differ
HDD capacityDiffers20 GB250 GB
HDD speedDiffers5400 RPM7200 RPM
HDD sizeDiffers2.5"3.5"
InterfaceDiffersUltra-ATA/100Serial ATA
Storage drive buffer sizeDiffers8 MB16 MB
HDD number of headsKnown for one2
Read seek timeDiffers12.5 ms5 ms
Write seek timeDiffers14.5 ms9 ms
Access timeKnown for one10 ms
Track to track seek timeKnown for one0.8 ms
Average latencyKnown for one4.16 ms
Bytes per sectorKnown for one512
Power1 differ
Power consumption (standby)Known for one0.26 W
Operating voltageDiffers5 V5 / 12 V
Start-up currentKnown for one1.1 A
Operational conditions1 differ
Operating temperature (T-T)Known for one-30 - 85 °C
Storage temperature (T-T)Differs-40 - 95 °C0 - 60 °C
Operating relative humidity (H-H)Known for one5 - 90%
Storage relative humidity (H-H)Known for one5 - 95%
Operating altitudeKnown for one-0.305 - 4.420 m
Non-operating altitudeKnown for one-305 - 12192 m
Non-operating shockKnown for one800 G
Weight & dimensions4 differ
WidthDiffers69.8 mm101.6 mm
DepthDiffers100 mm146.6 mm
HeightDiffers9.5 mm25.7 mm
WeightDiffers100 g726 g
Other features1 differ
Power requirementsKnown for one5V ± 5%
Dimensions (WxDxH)Differs69.85 x 100 x 9.5 mm101.6 x 146.55 x 25.654 mm
External power adapterKnown for oneNo
InternalYesYes
USB poweredKnown for oneNo
Compatible productsKnown for onePC
CertificationKnown for oneFCC Class B
HDD transfer rateKnown for one150 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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