IPC-510 Economical 4U Rackmount Chassis with Front-Accessible USB and PS/2 Interfaces Features Most cost-effective rackmount chassisSupports PS/2 single power supplyEasy-to-install front-accessible drive bays hold 3 x 5.25″ and 2 x 3.5″ drives (1 x front-accessible and 1 x internal)Front-accessible USB and PS/2 interfaces Specifications Removal Cooling UnitReset Button (Inside Secure Cover)Power Switch (Inside Secure Cover)Power LEDStorage LEDUSB and PS/2 Motherboard (fits 450 mm/17.7" depth) Black Version Dimensions