HP Compaq dc7800 Convertible Minitower PC - Features: - Intel Core Duo 3GHz - 2Gb DDR2/667 - I/O ports:Rear: 6 USB 2.0, 1 serial port, 1 optional serial port, 1 parallel port, 2 PS/2, 1 RJ-45, 1 VGA, audio in/out; Front: 2 USB 2.0, audio ports - CD/DVD-ROM - PCI Express Card