Product comparison · 2 internal hard drives

Seagate Exos 7E2000 vs Seagate Constellation ST91000641NS-40PK internal hard drive

Key differences

Interface
- Exos 7E2000:SAS
- Constellation ST91000641NS-40PK internal hard drive:Serial ATA III
Storage drive buffer size
- Exos 7E2000:128 MB
- Constellation ST91000641NS-40PK internal hard drive:64 MB
Power consumption (typical)
- Exos 7E2000:5.9 W
- Constellation ST91000641NS-40PK internal hard drive:5.21 W
Power consumption (idle)
- Exos 7E2000:3.29 W
- Constellation ST91000641NS-40PK internal hard drive:3.31 W
Operating temperature (T-T)
- Exos 7E2000:5 - 55 °C
- Constellation ST91000641NS-40PK internal hard drive:5 - 60 °C
Operating shock
- Exos 7E2000:25 G
- Constellation ST91000641NS-40PK internal hard drive:70 G
Weight
- Exos 7E2000:190 g
- Constellation ST91000641NS-40PK internal hard drive:200 g

Differences highlightedShow differences only

Comparison of Exos 7E2000, ST91000641NS-40PK
27 specifications	A Seagate Exos 7E2000 View product	B Seagate Constellation ST91000641NS-40PK internal hard drive Model ST91000641NS-40PK View product
Features2 differ
HDD capacity	1 TB	1 TB
HDD speed	7200 RPM	7200 RPM
HDD size	2.5"	2.5"
InterfaceDiffers	SAS	Serial ATA III
Type	HDD	HDD
Storage drive buffer sizeDiffers	128 MB	64 MB
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
Average latency	4.16 ms	4.16 ms
Bytes per sectorKnown for one	Unknown — not stated by the source	512
Mean time between failures (MTBF)Known for one	Unknown — not stated by the source	1400000 h
Component forKnown for one	Server/workstation	Unknown — not stated by the source
HDD interface transfer rateKnown for one	12 Gbit/s	Unknown — not stated by the source
Power2 differ
Power consumption (typical)Differs	5.9 W	5.21 W
Power consumption (idle)Differs	3.29 W	3.31 W
Operating voltage	5 V	5 V
Power consumption (standby)Known for one	1.52 W	Unknown — not stated by the source
Operational conditions2 differ
Operating temperature (T-T)Differs	5 - 55 °C	5 - 60 °C
Operating vibration	0.5 G	0.5 G
Non-operating vibration	3 G	3 G
Operating shockDiffers	25 G	70 G
Non-operating shock	400 G	400 G
Weight & dimensions1 differ
Width	70.1 mm	70.1 mm
Depth	100.5 mm	100.5 mm
Height	15 mm	15 mm
WeightDiffers	190 g	200 g
Packaging dataidentical
Quantity per pack	40 pc(s)	40 pc(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.