Dell OptiPlex GX620 Pentium D 945 3.4GHz 2GB 250GB DVD&plusmn;RW XP Professional Desktop Dell OptiPlex GX620 Pentium D 945 3.4 GHz Desktop PC General Features: Desktop form factor Microsoft Windows XP Professional pre-installed w/CoA and reinstallation partition Intel Pentium D 945 3.4 GHz dual core processor 2x2 MB L2 Cache, 800 MHz FSB Speed Intel 945G Express chipset 2 GB DDR2 RAM (4 GB maximum) 250 GB SATA hard drive DVD RW drive No Floppy drive