Processor 4 x Xeon 8-Core 2.26GHz 32 Core CPU Chipset Intel 7500 Chipset 2.5' Type Max CPU Qty 4 Memory 128 GB Max Memory 1024 GB Support Hard Disk 4 x 146 GB SATA 10K 2.5 HDD HotPlug Raid Controller PERC H700 Remote Access iDrac 6 Enterprise  Power Supply 4x 1100W Optical Drive DVD Drive Bezel Included OS | RAM | HDD | PSU | Rail can add base on your required 1 month warranty Can be upgrade OS | specification depend on your required