IOGEAR says: Thank you for choosing IOGEAR. The GCS632U is a single head, emulated VGA KVM . If you share 1 monitor through the GCS632U and the Other monitor is connected directly to your computer , the answer is yes . This setup will allow you to extend the desktop. To better service you and understand your set up, please feel to contact our customer support at 1-866-946-4327 or email us: support@iogear.com. Once again, thank you for choosing IOGEAR.