Dell Desktop Optiplex GX620 Pentium 4 Single-Core 3.40GHz Bus Speed 800MHz 1 MB Cache RAM 1GB No Hard Drive DVD Multiburner Floppy Disk Drive Gigabit Enabled (1.00 Gbps) Local Area Network Capable Intel GMA 950 Dynamic Video Memory Technology 3.0 Microsoft Windows XP Professional (32-bit) License Only - No OS Installed Mini Tower Silver on Black