Our industrial 4U chassis supports 14-slot backplanes. There are three adjacent 5.25" drive bays, one 3.5" bay, and one internal 3.5" drive bay, all mounted on a floating shock-mounted frame, with a locking drive cover. A 12cm ball bearing cooling fan is built-in with a removable filter. An adjustable expansion card clamp secures add-on cards under shock and vibration. Choose any PS/2 style power supply.