RT845UAABA - SBUY dc7600 convertible minitower, Pentium D-915, 80G hard drive 7200 SATA, no floppy, DVD/CDRW, 1G memory, Windows XP Professional. Processor: Intel Pentium 4 531 3 GHz; Hard Drive: 40 GB, Serial ATA-150 Included Operating System: Microsoft Windows XP Professional; Warranty: 3 years limited to parts and labor