The HP ProLiant ML310 G5 is an affordable, single processor tower server designed to provide the solid network foundation essential to fuel thriving small offices. Form Factor : 5U Tower Processor: Intel Xeon DC X3065 2.33GHz, 1333MHz FSB, 4MB L2 cache Memory : 2GB (4x 512MB) PC2-6400 Unbuffered DDR2 SDRAM (Max upto 8GB) HDD : 2x 250GB 3.5" hot plug SATA hard drives Drive Bays : 4 hot-plug hard drives Graphics : Intg ATI ES1000, 32MB video std Controller : Smart Array E200 Storage Controller (supports RAID 0/1/5) Operating System : Windows Small Business Server 2003 Premium R2 with 5 CAL's Network : Embedded NC326i Gigabit Server Adaptor Ports : 1 Serial, 1 Mouse, 1 Keyboard, 1 Graphics, 6 USB (2 Front, 2 Rear, 1 Int, 1 dedicated for USB tape connectivity), 1 RJ-45, 1 iLO 2 Remote Mgt Expansion Slots : (1) PCI Express x8 ; (3) PCI Express x1