Lenovo ThinkServer RD430 3064G2U 2U Rack Server 1 x Intel Xeon Processor E5-2407 (4C, 10M Cache, 2.20 GHz, 6.40 GT/s Intel QPI) / 2 Total Sockets 1 x 4 GB DDR3-1333MHz (1Rx4) RDIMM Memory; 12 Total Slots DVD-RW Optical Drive; 8 3.5-Inch Hot-Swap SATA/SAS Hard Drive Bays (Drive & Caddy must be purchased separately); Raid 300 (onboard SAS/SATA) supporting RAID Levels 0,1,10 1 x 800W Redundant Capable PSU, Dual Gigabit Ethernet (Integrated) Limited Next Business Day On-site Warranty, 3 Years Parts and Labor