Compatible with MINI-ITX or 6.9’ x 7.5’ motherboard Volume at 3.5 liters Compatible with either 2.5’ SSD (1.7’ CPU cooler) and 3.5’ HDD (1.3 CPU cooler) on top USB2.0 X 2 + HD AUDIO + COM X 2 + WIFI X 2 and PICO PSU needed Including vertical standing rack