ASUS RS160-E4/PA4. Processor socket: Socket 771, Processor family: Intel, Maximum CPU clock speed supported: 1333 MHz. Maximum internal memory: 32 GB. Controller interface type: Intel 6321ESB, RAID levels: 0, 1. Graphic adapter: ES1000, Maximum graphic adapter memory: 32 MB. LAN controller: Intel 82563EB, Networking features: Gigabit Ethernet