Product comparison · 2 internal hard drives

Lenovo 09N4254 internal hard drive vs Lenovo 40GB HD EIDE HIGH SPEED

Key differences

HDD capacity
- 09N4254 internal hard drive:160 GB
- 40GB HD EIDE HIGH SPEED:40 GB
HDD speed
- 09N4254 internal hard drive:7200 RPM
- 40GB HD EIDE HIGH SPEED:5400 RPM
HDD size
- 09N4254 internal hard drive:3.5"
- 40GB HD EIDE HIGH SPEED:2.5"
Interface
- 09N4254 internal hard drive:Serial ATA
- 40GB HD EIDE HIGH SPEED:Ultra-ATA/100
Storage drive buffer size
- 09N4254 internal hard drive:8 MB
- 40GB HD EIDE HIGH SPEED:2 MB
Average seek time
- 09N4254 internal hard drive:9 ms
- 40GB HD EIDE HIGH SPEED:12 ms
Average latency
- 09N4254 internal hard drive:4.17 ms
- 40GB HD EIDE HIGH SPEED:5.5 ms
Operating voltage
- 09N4254 internal hard drive:5 / 12 V
- 40GB HD EIDE HIGH SPEED:5 V

Differences highlightedShow differences only

Comparison of 09N4254, 40GB HD EIDE HIGH SPEED
16 specifications	A Lenovo 09N4254 internal hard drive Model 09N4254 View product	B Lenovo 40GB HD EIDE HIGH SPEED View product
Features7 differ
HDD capacityDiffers	160 GB	40 GB
HDD speedDiffers	7200 RPM	5400 RPM
HDD sizeDiffers	3.5"	2.5"
InterfaceDiffers	Serial ATA	Ultra-ATA/100
TypeKnown for one	HDD	Unknown — not stated by the source
Storage drive buffer sizeDiffers	8 MB	2 MB
Average seek timeDiffers	9 ms	12 ms
Average latencyDiffers	4.17 ms	5.5 ms
Power1 differ
Operating voltageDiffers	5 / 12 V	5 V
Operational conditions1 differ
Operating temperature (T-T)Differs	5 - 55 °C	5 - 35 °C
Weight & dimensions1 differ
WidthKnown for one	102 mm	Unknown — not stated by the source
DepthKnown for one	25.9 mm	Unknown — not stated by the source
HeightKnown for one	146.7 mm	Unknown — not stated by the source
WeightDiffers	640 g	155 g
Other featuresidentical
Dimensions (WxDxH)Known for one	Unknown — not stated by the source	69.85 x 100.2 x 9.5 mm
InternalKnown 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.