Chieftec BT-04B-U3, Mini Tower, PC, Black, Mini-ITX, SECC, Home/Office Chieftec BT-04B-U3. Form factor: Mini Tower, Type: PC, Product color: Black. Power supply: 250 W, Power supply location: Bottom. Front fans diameters supported: 80 mm, Rear fans diameters supported: 60 mm. Supported HDD sizes: 2.5,3.5". Width: 5.31" (135 mm), Depth: 9.45" (240 mm), Height: 12.7" (323 mm)