MaterialAluminum/ Thickness 3.5mm Form FactorMINI-ITX M/B HDD1*3.5" HDD/2*2.5"HDD CD-ROM1*Slim ODD Power Supply120W DC-DC Board (LR1005) and 12V/5A AC Adaptor Radiator Height1 M/B Radiator Height Under 24mm ,Install 1 Slim ODD ,1*3.5"HDD or 1*2.5" HDD 2 M/B Radiator Height Under 29mm ,Install 1 Slim ODD ,1* thin 3.5"HDD or 1*2.5" HDD 3 Without CD-ROM, Install 1*3.5"HDD or 2*2.5"HDD Basic Assembly InstructionWork Bin and Handle Box Expansion SlotsWithout Other Expansion ItemBack Panel COM*2 ; 1*WIFI Matching System Fan(Optional)1*5010 Fan or 1*6010 Fan Front PanelUSB Plate(Optional) Dimension200*80*225 mm (W*H*D) WeightN.W 1.45KG G W 2.15KG Packing255*150*270mm ColorRed/Black/Silver