Dell Desktop Optiplex GX620 Pentium 4 Single-Core 2.80GHz Bus Speed 800MHz 1 MB Cache RAM 1GB 40GB DVD-ROM/CD-RW Floppy Disk Drive Gigabit Enabled (1.00 Gbps) Local Area Network Capable Microsoft Windows 7 Home Premium License Only - No OS Installed Microsoft Authorized Refurbish Desktop Silver on Black