Toshiba Dynadock USB Docking Station with DVI/VGA port. Built-in HD Digital Video card can connect an extra VGA or DVI monitor with resolution up to 1920 x 1200, enabling users to view up to 3 displays simultaneously. Built-in Digital Audio card adds high-quality 7.1 surround sound through the S/PDIF port, providing a true multimedia sound experience. Compatible with any brand of Windows based computers running XP or Vista operating systems.