Seagate 500GB 2.5" SAS vs Seagate Constellation 500-GB SED

Comparison of 500GB 2.5" SAS, Constellation 500-GB SED

33 specifications	A Seagate 500GB 2.5" SASView product	B Seagate Constellation 500-GB SEDView product
Featuresidentical
HDD capacity	500 GB	500 GB
HDD speed	7200 RPM	7200 RPM
HDD size	2.5"	2.5"
InterfaceKnown for one	SAS	—Unknown — not stated by the source
TypeKnown for one	HDD	—Unknown — not stated by the source
Component forKnown for one	Server/workstation	—Unknown — not stated by the source
Storage drive buffer size	16 MB	16 MB
Average latency	4.16 ms	4.16 ms
Mean time between failures (MTBF)	1200000 h	1200000 h
Read seek timeKnown for one	—Unknown — not stated by the source	8.5 ms
Write seek timeKnown for one	—Unknown — not stated by the source	9.5 ms
Track to track seek timeKnown for one	—Unknown — not stated by the source	0.8 ms
Bytes per sectorKnown for one	—Unknown — not stated by the source	512
Poweridentical
Power consumption (typical)Known for one	4 W	—Unknown — not stated by the source
Power consumption (idle)Known for one	2.9 W	—Unknown — not stated by the source
Operating voltage	5 V	5 V
Operational conditionsidentical
Operating temperature (T-T)	5 - 55 °C	5 - 55 °C
Storage temperature (T-T)	-40 - 70 °C	-40 - 70 °C
Operating vibrationKnown for one	0.5 G	—Unknown — not stated by the source
Non-operating vibrationKnown for one	2.4 G	—Unknown — not stated by the source
Operating shockKnown for one	70 G	—Unknown — not stated by the source
Non-operating shockKnown for one	400 G	—Unknown — not stated by the source
Weight & dimensions1 differ
Width	70 mm	70 mm
Depth	100.5 mm	100.5 mm
Height	14.8 mm	14.8 mm
WeightDiffers	196 g	227 g
Other featuresidentical
Windows operating systems supportedKnown for one	Yes	—Unknown — not stated by the source
Power requirementsKnown for one	—Unknown — not stated by the source	12V
Dimensions (WxDxH)Known for one	—Unknown — not stated by the source	70 x 100.5 x 14.8 mm
Card reader integratedKnown for one	—Unknown — not stated by the source	No
Data transfer rateKnown for one	—Unknown — not stated by the source	6 Gbit/s
InternalKnown for one	—Unknown — not stated by the source	Yes
Sustained data rateKnown for one	—Unknown — not stated by the source	0 MB/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.