Product comparison · 2 internal hard drives

Dell 400GB SAS 10k HDD vs Samsung Spinpoint M HM640JI internal hard drive

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

Key differences

HDD capacity
- 400GB SAS 10k HDD:400 GB
- Spinpoint M HM640JI internal hard drive:640 GB
HDD speed
- 400GB SAS 10k HDD:10000 RPM
- Spinpoint M HM640JI internal hard drive:5400 RPM
HDD size
- 400GB SAS 10k HDD:3.5"
- Spinpoint M HM640JI internal hard drive:2.5"
Interface
- 400GB SAS 10k HDD:SAS
- Spinpoint M HM640JI internal hard drive:Serial ATA
Operating voltage
- 400GB SAS 10k HDD:5 / 12 V
- Spinpoint M HM640JI internal hard drive:5 V

Side by side

Differences highlightedShow differences only

Comparison of 400GB SAS 10k HDD, HM640JI
28 specifications	A Dell 400GB SAS 10k HDD View product	B Samsung Spinpoint M HM640JI internal hard drive Model HM640JI View product
Features4 differ
HDD capacityDiffers	400 GB	640 GB
HDD speedDiffers	10000 RPM	5400 RPM
HDD sizeDiffers	3.5"	2.5"
InterfaceDiffers	SAS	Serial ATA
Storage drive buffer sizeKnown for one	Unknown — not stated by the source	8 MB
Average seek timeKnown for one	Unknown — not stated by the source	12 ms
Bytes per sectorKnown for one	Unknown — not stated by the source	512
Power1 differ
Operating voltageDiffers	5 / 12 V	5 V
Operational conditionsidentical
Operating temperature (T-T)Known for one	Unknown — not stated by the source	5 - 55 °C
Storage temperature (T-T)Known for one	Unknown — not stated by the source	-40 - 70 °C
Operating vibrationKnown for one	Unknown — not stated by the source	1.5 G
Operating altitudeKnown for one	Unknown — not stated by the source	-300 - 3000 m
Non-operating altitudeKnown for one	Unknown — not stated by the source	-400 - 15000 m
Operating shockKnown for one	Unknown — not stated by the source	325 G
Non-operating shockKnown for one	Unknown — not stated by the source	900 G
Weight & dimensionsidentical
WidthKnown for one	Unknown — not stated by the source	69.8 mm
DepthKnown for one	Unknown — not stated by the source	100.3 mm
HeightKnown for one	Unknown — not stated by the source	9.5 mm
WeightKnown for one	Unknown — not stated by the source	119 g
Other featuresidentical
Ethernet LAN	No	No
Fibre Channel	No	No
FireWire 400	No	No
FireWire 800	No	No
Internal	Yes	Yes
USB 2.0 ports quantity	0	0
USB 3.2 Gen 1 (3.1 Gen 1) ports quantity	0	0
USB powered	No	No
Compatible productsKnown for one	PowerEdge PowerVault	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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