The RX-3392 is a 3U rackmount computer designed as a flexible Pentium advanced server. With its 3U height, add-on cards can be mounted vertically. With it 26” depth, cards can be full length as well as full height. Extended ATX motherboards can be mounted. With nine open 5.25” drive bays, eight of them equipped with SATA removable hard drive trays, this system offers plenty of room for storage.