Product comparison · 2 internal hard drives

Dell 400-20556 internal hard drive vs Dell 500GB 3.5" SATA 7200RPM

Key differences

HDD capacity
- 400-20556 internal hard drive:160 GB
- 500GB 3.5" SATA 7200RPM:500 GB
HDD size
- 400-20556 internal hard drive:2.5"
- 500GB 3.5" SATA 7200RPM:3.5"
Operating voltage
- 400-20556 internal hard drive:5 V
- 500GB 3.5" SATA 7200RPM:5 / 12 V

Differences highlightedShow differences only

Comparison of 400-20556, 500GB 3.5" SATA 7200RPM
8 specifications	A Dell 400-20556 internal hard drive Model 400-20556 View product	B Dell 500GB 3.5" SATA 7200RPM View product
Features2 differ
HDD capacityDiffers	160 GB	500 GB
HDD sizeDiffers	2.5"	3.5"
SMART technologyKnown for one	Unknown — not stated by the source	Yes
Power1 differ
Operating voltageDiffers	5 V	5 / 12 V
Packaging dataidentical
Quantity per packKnown for one	1 pc(s)	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.