Product comparison · 2 internal hard drives

Seagate Constellation ST9250612NS internal hard drive vs Seagate Constellation ST9500622SS internal hard drive

Key differences

HDD capacity
- Constellation ST9250612NS internal hard drive:250 GB
- Constellation ST9500622SS internal hard drive:500 GB
Interface
- Constellation ST9250612NS internal hard drive:Serial ATA
- Constellation ST9500622SS internal hard drive:SAS
HDD number of heads
- Constellation ST9250612NS internal hard drive:2
- Constellation ST9500622SS internal hard drive:4
Read seek time
- Constellation ST9250612NS internal hard drive:7.5 ms
- Constellation ST9500622SS internal hard drive:8.5 ms
Write seek time
- Constellation ST9250612NS internal hard drive:8.5 ms
- Constellation ST9500622SS internal hard drive:9.5 ms
Width
- Constellation ST9250612NS internal hard drive:69.8 mm
- Constellation ST9500622SS internal hard drive:70 mm
Depth
- Constellation ST9250612NS internal hard drive:100 mm
- Constellation ST9500622SS internal hard drive:14.8 mm
Height
- Constellation ST9250612NS internal hard drive:15 mm
- Constellation ST9500622SS internal hard drive:100.5 mm

Differences highlightedShow differences only

Comparison of ST9250612NS, ST9500622SS
33 specifications	A Seagate Constellation ST9250612NS internal hard drive Model ST9250612NS View product	B Seagate Constellation ST9500622SS internal hard drive Model ST9500622SS View product
Features5 differ
HDD capacityDiffers	250 GB	500 GB
InterfaceDiffers	Serial ATA	SAS
HDD number of headsDiffers	2	4
Read seek timeDiffers	7.5 ms	8.5 ms
Write seek timeDiffers	8.5 ms	9.5 ms
Track to track seek timeKnown for one	0.44 ms	Unknown — not stated by the source
Component forKnown for one	Unknown — not stated by the source	Server/workstation
Weight & dimensions4 differ
WidthDiffers	69.8 mm	70 mm
DepthDiffers	100 mm	14.8 mm
HeightDiffers	15 mm	100.5 mm
WeightDiffers	179 g	183 g
Other features1 differ
Disks included quantityDiffers	1 pc(s)	2 pc(s)
Plug and PlayKnown for one	Yes	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.