Chenbro No Power Supply Workstation Case - Black (SR20969-C0) Case Type: Compact Server/Workstation Case Material: 0.8mm SECC M/B Type: ATX up to 12 x 10.5 inch External Bay: 3x 5.25" (1x 5.25" to 3.5" bracket include) Internal Bay: 4x 3.5" Fans: 1x 92mm (Front); 1x 120mm (Rear) Backplane: Ultra320 SCSI, serial ATA Expansion Slots: 7