The Matrox TripleHead2Go Graphics Expansion Module Digital Edition works great with three monitors or two with DVI or VGA ports. It works with either laptops or desktops with a USB port and a VGA or DVI port. Drivers for various Windows OSes are available for free download from Matrox website.
Please note the laptop and the monitors in the photos are not available, and they show how the device can use three monitors.
You can call Matrox at show contact info
to find out if you computer is compatible with this device. Better, you ask them if they still have a software tool to download (they used to have one, but I can not find it at their web site) to your computer to check compatibility with the device.