Product comparison · 2 internal hard drives

Seagate Desktop HDD ST320DM000 internal hard drive vs Seagate Momentus STBD500200 internal hard drive

6specifications compared
4differ
2identical
33known for one product only

Key differences

HDD capacity
- Desktop HDD ST320DM000 internal hard drive:320 GB
- Momentus STBD500200 internal hard drive:500 GB
HDD size
- Desktop HDD ST320DM000 internal hard drive:3.5"
- Momentus STBD500200 internal hard drive:2.5"
Interface
- Desktop HDD ST320DM000 internal hard drive:Serial ATA
- Momentus STBD500200 internal hard drive:Serial ATA II
Operating voltage
- Desktop HDD ST320DM000 internal hard drive:5 / 12 V
- Momentus STBD500200 internal hard drive:5 V

Side by side

Differences highlightedShow differences only

Comparison of ST320DM000, STBD500200
39 specifications	A Seagate Desktop HDD ST320DM000 internal hard drive Model ST320DM000 View product	B Seagate Momentus STBD500200 internal hard drive Model STBD500200 View product
Features3 differ
HDD capacityDiffers	320 GB	500 GB
HDD speed	7200 RPM	7200 RPM
HDD sizeDiffers	3.5"	2.5"
InterfaceDiffers	Serial ATA	Serial ATA II
Storage drive buffer size	16 MB	16 MB
HDD number of headsKnown for one	2	Unknown — not stated by the source
Read seek timeKnown for one	8.5 ms	Unknown — not stated by the source
Write seek timeKnown for one	9.5 ms	Unknown — not stated by the source
Track to track seek timeKnown for one	1.2 ms	Unknown — not stated by the source
Average latencyKnown for one	4.16 ms	Unknown — not stated by the source
Bytes per sectorKnown for one	4096	Unknown — not stated by the source
Start/stop cyclesKnown for one	50000	Unknown — not stated by the source
Component forKnown for one	Unknown — not stated by the source	Laptop
Power1 differ
Operating voltageDiffers	5 / 12 V	5 V
Start-up currentKnown for one	2 A	Unknown — not stated by the source
Operational conditionsidentical
Operating temperature (T-T)Known for one	0 - 60 °C	Unknown — not stated by the source
Storage temperature (T-T)Known for one	-40 - 70 °C	Unknown — not stated by the source
Operating relative humidity (H-H)Known for one	5 - 95%	Unknown — not stated by the source
Storage relative humidity (H-H)Known for one	5 - 95%	Unknown — not stated by the source
Operating vibrationKnown for one	0.5 G	Unknown — not stated by the source
Non-operating vibrationKnown for one	3 G	Unknown — not stated by the source
Operating altitudeKnown for one	-304.8 - 3048 m	Unknown — not stated by the source
Non-operating altitudeKnown for one	-304.8 - 12192 m	Unknown — not stated by the source
Operating shockKnown for one	70 G	Unknown — not stated by the source
Non-operating shockKnown for one	350 G	Unknown — not stated by the source
Weight & dimensionsidentical
WidthKnown for one	101.6 mm	Unknown — not stated by the source
DepthKnown for one	147 mm	Unknown — not stated by the source
HeightKnown for one	20 mm	Unknown — not stated by the source
WeightKnown for one	415 g	Unknown — not stated by the source
Other featuresidentical
Data transfer rateKnown for one	4.69 Gbit/s	Unknown — not stated by the source
Disks included quantityKnown for one	1 pc(s)	Unknown — not stated by the source
Drive ready timeKnown for one	8.5 s	Unknown — not stated by the source
InternalKnown for one	Yes	Unknown — not stated by the source
Plug and PlayKnown for one	Yes	Unknown — not stated by the source
Recording densityKnown for one	1413 kbit/inch	Unknown — not stated by the source
Track densityKnown for one	236 kt/in	Unknown — not stated by the source
Windows operating systems supportedKnown for one	Unknown — not stated by the source	Windows 7 Home Premium, Windows 7 Home Premium x64, Windows 7 Professional, Windows 7 Professional x64, Windows 7 Starter, Windows 7 Starter x64, Windows 7 Ultimate, Windows 7 Ultimate x64, Windows Vista Business, Windows Vista Business x64, Windows Vista Home Basic, Windows Vista Home Basic x64, Wi
Mac operating systems supportedKnown for one	Unknown — not stated by the source	Yes
Linux operating systems supportedKnown for one	Unknown — not stated by the source	Yes

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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