This listing is for a Compaq Evo D500 desktop PC. It features an Intel Pentium 4 processor, 1GB of RAM, and a 20GB hard drive. The hard drive has been wiped and is ready for a fresh installation of Windows XP, for which a product key is visible on the chassis. The system includes a CD-ROM drive and various connectivity options for legacy and modern peripherals. This unit is ideal for retro gaming, industrial applications, or collectors seeking a classic Windows XP machine. Please note the cosmetic wear on the front panel as shown in the images. No operating system is installed; buyer will need to install Windows XP or another compatible OS.** Turns on and boots. Sometimes it gets stuck on the windows login screen.**