Product comparison · 2 internal hard drives

Seagate Constellation ST4000NM0044-20PK internal hard drive vs Seagate Constellation ST4000NM0054-20PK internal hard drive

Key differences

Interface
- Constellation ST4000NM0044-20PK internal hard drive:Serial ATA III
- Constellation ST4000NM0054-20PK internal hard drive:SAS
Power consumption (typical)
- Constellation ST4000NM0044-20PK internal hard drive:9.42 W
- Constellation ST4000NM0054-20PK internal hard drive:9.59 W
Power consumption (idle)
- Constellation ST4000NM0044-20PK internal hard drive:6 W
- Constellation ST4000NM0054-20PK internal hard drive:5.73 W
Non-operating vibration
- Constellation ST4000NM0044-20PK internal hard drive:5 G
- Constellation ST4000NM0054-20PK internal hard drive:4.9 G
Data transfer rate
- Constellation ST4000NM0044-20PK internal hard drive:6 Gbit/s
- Constellation ST4000NM0054-20PK internal hard drive:12 Gbit/s

Differences highlightedShow differences only

Comparison of ST4000NM0044-20PK, ST4000NM0054-20PK
22 specifications	A Seagate Constellation ST4000NM0044-20PK internal hard drive Model ST4000NM0044-20PK View product	B Seagate Constellation ST4000NM0054-20PK internal hard drive Model ST4000NM0054-20PK View product
Features1 differ
HDD capacity	4 TB	4 TB
HDD speed	7200 RPM	7200 RPM
HDD size	3.5"	3.5"
InterfaceDiffers	Serial ATA III	SAS
Type	HDD	HDD
Component forKnown for one	Unknown — not stated by the source	Server/workstation
Storage drive buffer size	128 MB	128 MB
Average latency	4.16 ms	4.16 ms
Bytes per sector	512	512
Mean time between failures (MTBF)	1400000 h	1400000 h
Power2 differ
Power consumption (typical)Differs	9.42 W	9.59 W
Power consumption (idle)Differs	6 W	5.73 W
Operating voltage	5 / 12 V	5 / 12 V
Operational conditions1 differ
Operating temperature (T-T)	5 - 60 °C	5 - 60 °C
Non-operating vibrationDiffers	5 G	4.9 G
Non-operating shock	300 G	300 G
Weight & dimensionsidentical
Width	101.8 mm	101.8 mm
Depth	147 mm	147 mm
Height	26.1 mm	26.1 mm
Weight	635 g	635 g
Packaging dataidentical
Quantity per pack	20 pc(s)	20 pc(s)
Other features1 differ
Data transfer rateDiffers	6 Gbit/s	12 Gbit/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.