Product comparison · 2 internal hard drives

Seagate Desktop HDD ST4000DM000-20PK internal hard drive vs Seagate Constellation ST500NM0001-20PK internal hard drive

13specifications compared
5differ
8identical
15known for one product only

Key differences

HDD capacity
- Desktop HDD ST4000DM000-20PK internal hard drive:4 TB
- Constellation ST500NM0001-20PK internal hard drive:500 GB
Interface
- Desktop HDD ST4000DM000-20PK internal hard drive:Serial ATA III
- Constellation ST500NM0001-20PK internal hard drive:SAS
Power consumption (typical)
- Desktop HDD ST4000DM000-20PK internal hard drive:7.5 W
- Constellation ST500NM0001-20PK internal hard drive:6.76 W
Operating temperature (T-T)
- Desktop HDD ST4000DM000-20PK internal hard drive:0 - 60 °C
- Constellation ST500NM0001-20PK internal hard drive:5 - 60 °C
Width
- Desktop HDD ST4000DM000-20PK internal hard drive:101.6 mm
- Constellation ST500NM0001-20PK internal hard drive:101.8 mm

Side by side

Differences highlightedShow differences only

Comparison of ST4000DM000-20PK, ST500NM0001-20PK
28 specifications	A Seagate Desktop HDD ST4000DM000-20PK internal hard drive Model ST4000DM000-20PK View product	B Seagate Constellation ST500NM0001-20PK internal hard drive Model ST500NM0001-20PK View product
Features2 differ
HDD capacityDiffers	4 TB	500 GB
HDD size	3.5"	3.5"
InterfaceDiffers	Serial ATA III	SAS
Type	HDD	HDD
Storage drive buffer size	64 MB	64 MB
HDD number of cylindersKnown for one	4	Unknown — not stated by the source
HDD number of headsKnown for one	8	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
Bytes per sectorKnown for one	4096	Unknown — not stated by the source
Start/stop cyclesKnown for one	300000	Unknown — not stated by the source
HDD speedKnown for one	Unknown — not stated by the source	7200 RPM
Power1 differ
Power consumption (typical)Differs	7.5 W	6.76 W
Power consumption (standby)Known for one	0.75 W	Unknown — not stated by the source
Power consumption (idle)Known for one	5 W	Unknown — not stated by the source
Operating voltage	5 / 12 V	5 / 12 V
Start-up currentKnown for one	2 A	Unknown — not stated by the source
Operational conditions1 differ
Operating temperature (T-T)Differs	0 - 60 °C	5 - 60 °C
Storage temperature (T-T)Known for one	-40 - 70 °C	Unknown — not stated by the source
Packaging contentidentical
Quick start guideKnown for one	Yes	Unknown — not stated by the source
Bundled softwareKnown for one	DiscWizard	Unknown — not stated by the source
Weight & dimensions1 differ
WidthDiffers	101.6 mm	101.8 mm
Depth	147 mm	147 mm
Height	26.1 mm	26.1 mm
WeightKnown for one	610 g	Unknown — not stated by the source
Packaging dataidentical
Quantity per pack	20 pc(s)	20 pc(s)
Other featuresidentical
Data transfer rate	6 Gbit/s	6 Gbit/s
CertificationKnown for one	RoHS	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.

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