The ViBook is a small USB dongle which lets you connect external monitors up to 23 inches in size via your computerâ€™s USB port. You can attach multiple dongles to run more screens, and the thing supports up to 1680Ã—1050 resolution. Low power too, so it shouldnâ€™t destroy your port. Runs DVI or VGA and is Mac and PC compatible. Cool runnings. $129.00.
— ViBook – run multiple displays from your laptop USB ports – The Red Ferret Journal
Ah, finally, I don’t have to keep buying video cards that have multiple ports on them. I wonder how processor intensive this thing is.