ASUS TM-B21 Mini Tower Black, Red vs ASUS TM-B22 Mini Tower Black, Silver

Comparison of TM-B21, TM-B22

13 specifications	A ASUS TM-B21 Mini Tower Black, Red Model TM-B21 View product	B ASUS TM-B22 Mini Tower Black, Silver Model TM-B22 View product
Design1 differ
Form factor	Mini Tower	Mini Tower
Type	PC	PC
Product colourDiffers	Black, Red	Black, Silver
Ports & interfacesidentical
USB 2.0 ports quantity	2	2
Audio input	Yes	Yes
Audio output	Yes	Yes
Weight & dimensionsidentical
Width	180 mm	180 mm
Depth	449 mm	449 mm
Height	352 mm	352 mm
Weight	4.5 kg	4.5 kg
Other featuresidentical
External drive bays	2 x 5.25", 1 x 3.5"	2 x 5.25", 1 x 3.5"
Internal drive bays	5 x 3.5"	5 x 3.5"
Expansion slots	4	4

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.