Model No. SST-PS07B (Black) SST-PS07W (White) Material High-strength plastic front panel & aluminum accent, steel body Motherboard Micro-ATX, DTX, Mini-ITX Drive Bay 5.25" x 2 3.5" x 1 (transfer bracket for hard drive installation) Internal 3.5" x 5 , 2.5” x1 Cooling System Front 2 x 120mm fan, 950rpm, 18dBA (PS07B only) 2 x 120mm fan, 1200rpm, 18dBA (PS07W only) Rear 1 x 120mm fan slot Expansion Slot 4 Front I/O Port USB 3.0 x 2 (backward compatible with USB 2.0) Audio x 1 MIC x 1 Power Supply Standard PS2(ATX) Optional, max length180mm* Expansion Card Compatible up to 13.5 inches in length Limitation of CPU cooler 165mm Limitation of PSU Unlimited Net Weight 5.2 kg Dimension 210mm(W)x374mm(H)x400mm(D), 31.4 liters