ASUS RS520-E9-RS12-E 2U Barebone Rackmont Server LGA3647 Aspeed AST2500 800W PSU - NO DVD-RW - E9 - 2x LGA 3647 Processor Sockets - IntelĀ® Lewisburg PCH C621 - 16x Memory Slots - 2x PCI-E x16, 4x PCI-E x8, 1x OCP 2.0 - 11 x SATA3 6Gb/s, 2x M.2 Connectors - 12x 2.5'/3.5' Hot Swap Bays, 2x 2.5' Rear Device Bays - 1x Dual Gigabit Lan Controller + 1x Mgmt LAN - Aspeed AST2500 with 64MB VRAM - 1+1 Redundant 800W 80 PLUS Platinum Power Supply - 12 Months Limited Warranty