Shuttle XPC (SN41G2 version 2.0). As the photos show it is in the usual neat Shuttle case, It has an AMD Athlon 2400+ GHz processor with the Shuttle heatpipe cooling system, 2GB DDR RAM, one hard disk (40GB), a DVD/CD read/write optical disk, and an Iomega Zip 100 drive, all in working order. It has the usual integrated graphics, sound, SPDIF, ethernet LAN etc., an expansion slot for AGP 8X graphics and one PCI slot,. Four USB sockets are provided, two at the rear and two on the front panel. A detailed spec and manuals can be downloaded from the shuttle.com website. The hard disk has been wiped, formatted and partitioned (25GB system, 15GB data), and Windows XP has been installed with Service Packs 1, 2,and 3. These software discs are legitimate Microsoft discs and included with the PC. Before the disk was wiped Windows 7 was installed (and ran quickly enough for general use but you might find you need an 80GB hard drive for it to work well). ). It is a neat little machine, and will serve well for normal home office use. If required I would download and install the latest version of the free Libre Office package which will do all you are likely to want/need. There is a mainboard and driver CD. The PC comes with mouse (2), monitor, and keyboard. Also included are six formatted Zip 100 cartridges. The machine is complete, working, and ready to.