Product comparison · 2 internal hard drives

Seagate Constellation ST32000645SS-20PK internal hard drive vs Seagate SV35 Series ST4000VX000-20PK internal hard drive

16specifications compared
7differ
9identical
14known for one product only

Key differences

HDD capacity
- Constellation ST32000645SS-20PK internal hard drive:2 TB
- SV35 Series ST4000VX000-20PK internal hard drive:4 TB
Interface
- Constellation ST32000645SS-20PK internal hard drive:SAS
- SV35 Series ST4000VX000-20PK internal hard drive:Serial ATA III
Bytes per sector
- Constellation ST32000645SS-20PK internal hard drive:512
- SV35 Series ST4000VX000-20PK internal hard drive:4096
Power consumption (idle)
- Constellation ST32000645SS-20PK internal hard drive:7.4 W
- SV35 Series ST4000VX000-20PK internal hard drive:5.4 W
Operating temperature (T-T)
- Constellation ST32000645SS-20PK internal hard drive:5 - 60 °C
- SV35 Series ST4000VX000-20PK internal hard drive:0 - 70 °C
Width
- Constellation ST32000645SS-20PK internal hard drive:101.8 mm
- SV35 Series ST4000VX000-20PK internal hard drive:101.6 mm
Weight
- Constellation ST32000645SS-20PK internal hard drive:700 g
- SV35 Series ST4000VX000-20PK internal hard drive:610 g

Side by side

Differences highlightedShow differences only

Comparison of ST32000645SS-20PK, ST4000VX000-20PK
30 specifications	A Seagate Constellation ST32000645SS-20PK internal hard drive Model ST32000645SS-20PK View product	B Seagate SV35 Series ST4000VX000-20PK internal hard drive Model ST4000VX000-20PK View product
Features3 differ
HDD capacityDiffers	2 TB	4 TB
HDD speedKnown for one	7200 RPM	Unknown — not stated by the source
HDD size	3.5"	3.5"
InterfaceDiffers	SAS	Serial ATA III
Type	HDD	HDD
Storage drive buffer size	64 MB	64 MB
Read seek time	8.5 ms	8.5 ms
Write seek time	9.5 ms	9.5 ms
Average latencyKnown for one	4.16 ms	Unknown — not stated by the source
Bytes per sectorDiffers	512	4096
Mean time between failures (MTBF)Known for one	1200000 h	Unknown — not stated by the source
Component forKnown for one	Unknown — not stated by the source	Surveillance system
Start/stop cyclesKnown for one	Unknown — not stated by the source	300000
Power1 differ
Power consumption (idle)Differs	7.4 W	5.4 W
Power consumption (read)Known for one	11.3 W	Unknown — not stated by the source
Operating voltage	5 / 12 V	5 / 12 V
Power consumption (typical)Known for one	Unknown — not stated by the source	8 W
Power consumption (standby)Known for one	Unknown — not stated by the source	0.75 W
Start-up currentKnown for one	Unknown — not stated by the source	2 A
Operational conditions1 differ
Operating temperature (T-T)Differs	5 - 60 °C	0 - 70 °C
Non-operating vibrationKnown for one	4.9 G	Unknown — not stated by the source
Operating shockKnown for one	70 G	Unknown — not stated by the source
Non-operating shockKnown for one	300 G	Unknown — not stated by the source
Storage temperature (T-T)Known for one	Unknown — not stated by the source	-40 - 70 °C
Weight & dimensions2 differ
WidthDiffers	101.8 mm	101.6 mm
Depth	147 mm	147 mm
Height	26.1 mm	26.1 mm
WeightDiffers	700 g	610 g
Packaging dataidentical
Quantity per pack	20 pc(s)	20 pc(s)
Other featuresidentical
Data transfer rateKnown for one	Unknown — not stated by the source	6 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.

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