Intel P4304SC2SFEN. Processor socket: Socket 1356, Processor family: Intel, Processors compatible: Xeon. Maximum internal memory: 128 GB, Supported memory types: DDR3-SDRAM, Maximum RDIMM memory: 128 GB. RAID levels: 0, 1, 5, 10, Supported hard disk drive interfaces: SAS, Serial ATA, Serial ATA II, Supported hard disk drive sizes: 63.5, 88.9 mm (2.5, 3.5 "). Networking features: Gigabit Ethernet, Ethernet LAN data transfer rates: 10, 100, 1000 Mbit/s. Form factor: 4U