Asus RS300-E9-PS4 Barebone System - 1U Rack-mountable - Intel C232 Chipset - Socket H4 LGA-1151 - 1 x Processor Support - 64 GB DDR4 SDRAM DDR4-2133/PC4-17000 Maximum RAM Support - Serial ATA/600 RAID Supported Controller - ASPEED AST2400 32 MB Integrated - 5 x Total Bays - 1 5.25" Bay(s) - 4 3.5" Bay(s) - 2 x Total Expansion Slots - Processor Support (Xeon) - Gigabit Ethernet - 4 USB 3.0 Port(s) - 1 x 400 W: