Introducing RM-1U164A7, the long depth 1U model from Athena Power"s slim 1U rackmount series, Designed to be Xeon mother board compatible, this 1U chassis can house up to three 3, 5"" HDDs, and a 5, 25"" slim CD/DVD drive, with a 25, 2"" depth, its air flow design can also prevant the system from overheating! For small business and office, the RM-1U164 is very ideal, Specifications:, Cage Color: Black, 1U IPC Rackmount Case with 1U EPS-12V 700W PSU, Dimension: 19"" x 1, 75"" x 25, 2"", Specifications: 19"" Standard Rackmount, MotherBorad Size: Micro ATX (9, 6"" x 9, 6"") ATX (12"" x 10"") Xeon (12"" x 13"") Motherboard, Drive Bay: 3, 5"" x 3 (1 Open, 2 Hidden); 5, 25"" x 1 (Open), Switches: Power, Power Supply: Special 1U, Rear Put, Cooling Fan: 6 x 40mm Fans, Ports: 2 x USB (Front), Indicators: LED"s for Power, System, HDD, Fan Fail, Expand Slots: 1 Slot Full High Expansion Card, Riser Card: Single Slot Riser Card, Marterial: 1, 0 mm Steel, SKU: ATHCPC068