Product comparison · 2 internal hard drives

Seagate ES ST31000426SS vs Seagate Momentus ST9750423AS internal hard drive

18specifications compared
14differ
4identical
11known for one product only

Key differences

HDD capacity
- ES ST31000426SS:1 TB
- Momentus ST9750423AS internal hard drive:750 GB
HDD speed
- ES ST31000426SS:7200 RPM
- Momentus ST9750423AS internal hard drive:5400 RPM
Interface
- ES ST31000426SS:SAS
- Momentus ST9750423AS internal hard drive:Serial ATA
Read seek time
- ES ST31000426SS:8.5 ms
- Momentus ST9750423AS internal hard drive:11 ms
Write seek time
- ES ST31000426SS:9.5 ms
- Momentus ST9750423AS internal hard drive:13 ms
Average latency
- ES ST31000426SS:4.16 ms
- Momentus ST9750423AS internal hard drive:5.6 ms
Power consumption (typical)
- ES ST31000426SS:8.04 W
- Momentus ST9750423AS internal hard drive:1.6 W
Start-up current
- ES ST31000426SS:1.89 A
- Momentus ST9750423AS internal hard drive:1 A

Side by side

Differences highlightedShow differences only

Comparison of ES ST31000426SS, ST9750423AS
29 specifications	A Seagate ES ST31000426SS View product	B Seagate Momentus ST9750423AS internal hard drive Model ST9750423AS View product
Features6 differ
HDD capacityDiffers	1 TB	750 GB
HDD speedDiffers	7200 RPM	5400 RPM
InterfaceDiffers	SAS	Serial ATA
Component forKnown for one	Unknown — not stated by the source	Laptop
Read seek timeDiffers	8.5 ms	11 ms
Write seek timeDiffers	9.5 ms	13 ms
Average latencyDiffers	4.16 ms	5.6 ms
Mean time between failures (MTBF)Known for one	1200000 h	Unknown — not stated by the source
Power2 differ
Power consumption (typical)Differs	8.04 W	1.6 W
Power consumption (idle)Known for one	Unknown — not stated by the source	0.55 W
Start-up currentDiffers	1.89 A	1 A
Power consumption (standby)Known for one	5.41 W	Unknown — not stated by the source
Operational conditions2 differ
Operating temperature (T-T)Differs	5 - 60 °C	0 - 60 °C
Non-operating shockDiffers	300 G	1000 G
Operating shockKnown for one	70 G	Unknown — not stated by the source
Weight & dimensions4 differ
WidthDiffers	101.8 mm	69.8 mm
DepthDiffers	147 mm	100.3 mm
HeightDiffers	26.1 mm	9.5 mm
WeightDiffers	640 g	115 g
Other featuresidentical
Power requirementsKnown for one	Unknown — not stated by the source	5VDC
Data transfer rateKnown for one	Unknown — not stated by the source	3 Gbit/s
InternalKnown for one	Unknown — not stated by the source	Yes
Plug and PlayKnown for one	Unknown — not stated by the source	Yes
USB poweredKnown for one	Unknown — not stated by the source	No
Sustained data rateKnown for one	150 MB/s	Unknown — not stated by the source

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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