Supermicro SuperServer 6015V-MRB, Black. Processor socket: Socket 771, Processor front side buses supported: 1333/1066/667 MHz, Maximum CPU clock speed supported: 3400 MHz. Maximum internal memory: 16 GB. RAID levels: 0, 1, 5, 10, Supported hard disk drive interfaces: SATA. Graphic adapter: ES1000, Maximum graphic adapter memory: 16 MB. LAN controller: Intel 82563EB, Networking features: Gigabit Ethernet