ASUS Z8NR-D12, Intel, Socket B (LGA 1366), E5600, L5600, W5500, X5600, 4, 6, 4.8,5.86,6.4 GT/s, DDR3-SDRAM ASUS Z8NR-D12. Processor manufacturer: Intel, Processor socket: Socket B (LGA 1366), Intel Xeon series: E5600, L5600, W5500, X5600. Supported memory types: DDR3-SDRAM, Maximum internal memory: 192 GB, ECC сompatibility: ECC. Supported storage drive interfaces: SATA II, RAID levels: 0, 1, 5, 10. On-board graphics card model: Aspeed AST2050, On-board graphics card memory: 8 MB. LAN controller: Intel® 82574L