Chassis specification : 6U Rack-mount Processor : Up to 8 Intel Xeon Nehalem-EX processors Memory : 64 DIMMs, up to 1024G ECC R-DDR3 Ram I/O expansion interfaces : 9 PCI-E2.0 half-height slots(3 PCI-E2.0 x16(hot-swap),6 PCI-E2.0 x8 ) Storage : 18 pieces of 2.5 SAS/SATA/SSD HDDs RAID : RAID1, 0, 10, 5, 50, 6, 60 External devices : 1 Slim DVD ,1 piece of 5 Tape(optional) Network card : Dual Gigabit network interfaces Physical partitions : 2 static hardware partitions Power supply : 1200W 3+1 redundant high efficient power supply I/O interfaces : Front position: 2 USB ports Back position: 4 USB ports, 2 Ethernet interfaces,1 management interface,2 PS2 ports, 2 COM interfaces, 1 VGA port Management : Support IPMI2.0 , KVM over IP and virtual media management With dedicate Ethernet port for management Support Inspur Ruijie management kit Optional LCD touch screen for management and monitor. OS supported : Microsoft Windows 2008 R2 64bit Redhat Linux Enterprise server5 U5 64bit Suse Linux 11 Enterprise server 64bit CentOs 5.5 64bit Redflag 3.0 sp3 64bit Vmware ESX Server 4.1/ ESXi Server 4.1. Chassis 442mm(w) 832mm(d) 264mm(h).