Cit f4 1 x usb3 1 x usb2 1 x 9 cm rear fan midi tower case no psu description the cit f4 midi tower is excellently styled with a black brushed aluminium effect front panel 1 x superspeed usb30 port 1 x hi speed usb20 port and hd audio ports is an ideal solution for any home soho user the powder coated black interior continues to extended the style of the f4 the f4 fully supports up to 5 x hdds 2 x 25 4 x 35 1 x shared and gpu lengths of up to 330mm the cooling syste