The RMC6440A-B is a 4U high rackmount computer supporting a Industrial grade ATX motherboard with Core i processors. It features three 5.25” open drive bays, one 3.5” open drive bay, two front USB ports, and a drive panel door with a key lock. Designed to serve in a wide range of applications, the RMC6440A-B offers flexible system configurations such as additional storage space, removable drive bay options, add-on cards, graphic cards, and Windows OS.