NO COA Attached NO OS Installed NO Media Disc Included. Not Included Rails / Bezel / Power Cords. Specifications 2x Intel Xeon Hex Core 2.8Ghz 6.4 GT/s 12mb Cache CPUs (Intel X5660) 12x 8gb 10600R DDR3 ECC Memory 2x 300gb 10k 2.5? SAS Drives / Trays DVD Drive H700 Controller with Battery 4x Onboard Gigabit Ethernet iDrac6 Express and Enterprise 2x 502wPower Supplies.