SilverStone Technology 4U Rackmount Server Chassis with 3 X 5.25 Front Bays with CEB/ATX/mATX/Mitx Support RM400 Cases SST-RM400

Supports up to SSI-CEB motherboard.
Supports ATX (PS2) /Mini redundant power supply up to 160mm deep
Supports standard profile PCI/ PCIe x 7 slots. Three 5.25 " Drive Bays for flexible 5.25 " Device installation
Front door with key lock for extra security. 5Gbps Super speed USB 3.1 Gen 1 interface, backward compatible with USB 2.0 / 1.1
5Gbps Super speed USB 3.1 Gen 1 interface, backward compatible with USB 2.0 / 1.1