HP P4000 G2 2-node Unified NAS Gateway System. Weight: 49.9 kg. Memory type: 6 GB DDR3 Registered (RDIMM) with ECC Capabilities; Standard; per node. Compatible operating systems: Windows Storage Server 2008 R2, Enterprise x64 Edition pre-installed. Dimensions (WxDxH): 848 x 273 x 879 mm, Total storage capacity: 600 GB