Two Intel? Xeon 2.80GHz processors (up to four supported)ServerWorks GC-LE chipset, with 400MHz Front Side Bus1024MB (Standard) of 2-way interleaved PC2100 ECC DDR (2 X 512 MB)Smart Array 5i Plus Controller (integrated on system board) with BBWCFour Hot Plug SCSI Drive bays, supporting 1-inch DrivesArchitected for enterprise performance and expansion: 12GB PC2100 DDR memory maximum, gigabit NIC upgrade and 587.2GB of internal storageIntegrated management system and full-compatibility with the Insight Manager Suite give you maximum virtual presence and control, management and health monitoring with blade visualization of all your edge-of-the-network applications4 bays wide X 6U high form factor plugs vertically into 6U server enclosureRack-centralized External shared redundant hot-plug power