Product comparison · 2 internal hard drives

Lenovo Express 146GB SAS Hot-Swap HDD vs Samsung Spinpoint M HM400LI internal hard drive

6specifications compared
5differ
1identical
23known for one product only

Key differences

HDD capacity
- Express 146GB SAS Hot-Swap HDD:146 GB
- Spinpoint M HM400LI internal hard drive:400 GB
HDD speed
- Express 146GB SAS Hot-Swap HDD:15000 RPM
- Spinpoint M HM400LI internal hard drive:5400 RPM
HDD size
- Express 146GB SAS Hot-Swap HDD:3.5"
- Spinpoint M HM400LI internal hard drive:2.5"
Interface
- Express 146GB SAS Hot-Swap HDD:SAS
- Spinpoint M HM400LI internal hard drive:Serial ATA II
Operating voltage
- Express 146GB SAS Hot-Swap HDD:5 / 12 V
- Spinpoint M HM400LI internal hard drive:5 V

Side by side

Differences highlightedShow differences only

Comparison of Express 146GB SAS Hot-Swap HDD, HM400LI
29 specifications	A Lenovo Express 146GB SAS Hot-Swap HDD View product	B Samsung Spinpoint M HM400LI internal hard drive Model HM400LI View product
Features4 differ
HDD capacityDiffers	146 GB	400 GB
HDD speedDiffers	15000 RPM	5400 RPM
HDD sizeDiffers	3.5"	2.5"
InterfaceDiffers	SAS	Serial ATA II
Average seek timeKnown for one	Unknown — not stated by the source	12 ms
Average latencyKnown for one	Unknown — not stated by the source	5.6 ms
Bytes per sectorKnown for one	Unknown — not stated by the source	512
Power1 differ
Power consumption (standby)Known for one	Unknown — not stated by the source	0.7 W
Operating voltageDiffers	5 / 12 V	5 V
Start-up currentKnown for one	Unknown — not stated by the source	1 A
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 relative humidity (H-H)Known for one	Unknown — not stated by the source	5 - 90%
Storage relative humidity (H-H)Known for one	Unknown — not stated by the source	5 - 95%
Operating vibrationKnown for one	Unknown — not stated by the source	0.76 Grms
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 mm
HeightKnown for one	Unknown — not stated by the source	9.5 mm
WeightKnown for one	Unknown — not stated by the source	115 g
Other featuresidentical
HDD transfer rateKnown for one	Unknown — not stated by the source	860 Mbit/s
Power requirementsKnown for one	Unknown — not stated by the source	+5V±5%
Drive ready timeKnown for one	Unknown — not stated by the source	5 s
Internal	Yes	Yes
Maximum data transfer rateKnown for one	Unknown — not stated by the source	300 Mbit/s
Plug and PlayKnown for one	Unknown — not stated by the source	Yes

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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