System X3550 M2, 1x Quad-Core Intel Xeon 2.0 GHz/4MB, FSB 800 Mhz,2x 1 GB + 1x 4 GB DDR3-1333 LP RDIMM, 2x 73 GB 15 000 rpm SFF SAS hot-swap, CD-RW/DVD, ServeRAID-BR10i, 2x 10/100/1k Mbps,PCI-Express (1x16) Riser (low), PCI-Express (1x16) riser standard