Product comparison · 2 pcs/workstations

Lenovo ThinkCentre A55 + D221 vs Lenovo ThinkCentre A55 + Lenovo D221

Key differences

Internal memory
- ThinkCentre A55 + D221:1 GB
- ThinkCentre A55 + Lenovo D221:2 GB
USB 2.0 ports quantity
- ThinkCentre A55 + D221:8
- ThinkCentre A55 + Lenovo D221:6
Power supply
- ThinkCentre A55 + D221:225 W
- ThinkCentre A55 + Lenovo D221:280 W
Chassis type
- ThinkCentre A55 + D221:SFF
- ThinkCentre A55 + Lenovo D221:Tower
Operating system installed
- ThinkCentre A55 + D221:Windows XP Professional
- ThinkCentre A55 + Lenovo D221:Windows Vista Business
Width
- ThinkCentre A55 + D221:310 mm
- ThinkCentre A55 + Lenovo D221:175 mm
Depth
- ThinkCentre A55 + D221:358 mm
- ThinkCentre A55 + Lenovo D221:440 mm
Height
- ThinkCentre A55 + D221:85 mm
- ThinkCentre A55 + Lenovo D221:402 mm

Differences highlightedShow differences only

Comparison of ThinkCentre A55 + D221, ThinkCentre A55 + Lenovo D221
94 specifications	A Lenovo ThinkCentre A55 + D221 View product	B Lenovo ThinkCentre A55 + Lenovo D221 View product
Memory1 differ
Internal memoryDiffers	1 GB	2 GB
Memory layout (slots x size)Known for one	Unknown — not stated by the source	2 x 1 GB
Ports & interfaces1 differ
USB 2.0 ports quantityDiffers	8	6
DVI portKnown for one	Yes	Unknown — not stated by the source
Power1 differ
Power supplyDiffers	225 W	280 W
Design1 differ
Chassis typeDiffers	SFF	Tower
Software1 differ
Operating system installedDiffers	Windows XP Professional	Windows Vista Business
Weight & dimensions4 differ
WidthDiffers	310 mm	175 mm
DepthDiffers	358 mm	440 mm
HeightDiffers	85 mm	402 mm
WeightDiffers	8.5 kg	10.2 kg

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.