I am the original owner of this compact PC. It has been sitting in the closet in a smoke free home for way too long. It was used at home and not in a business environment.  It comes in the original box and has an optional TSST SN-S083F/BEBE Slimline SATA DVD-RW Writer installed. I have wiped the Seagate ST9320423AS 320GB SATA drive so there is no OS installed. Originally the PC had XP installed. The PC will accommodate newer versions of Windows and other operating systems but the newer the OS the slower the PC. I am including a disk with the original drivers.  The PC is fully functional. I have enclosed screen shots from the BIOS.  A photo of the side of box shows configuration and features.  This model has an HDMI Output and a slimline DVD installed.

PC S/N XS35000801A51F00547