The computer cases are available in different shapes , size and other technical features depending upon the system requirements.
The computer case types and the its form factor include Super Tower case ( EL – ATX , Height – 27 to 29 inches ) , Full Tower case ( EATX , Height – 22 to 27 inches ) , Mid Tower case ( ATX , Height – 17 to 21 inches ) , Mini Tower case ( Micro -ATX , Height – 22 to 27 inches ) , Small Case ( Mini –ITX , Height – 10 to 12 inches ) , HTPC Case ( Mini –ITX , Height – 4 to 6 inches ).
The computer case selection also depends upon the motherboard form factor and other system specifications .