TigerDirect offers the Proximus 7″ Touchscreen USB LCD Monitor, model no. P16-41489, for $46.97 plus $2.99 for shipping. That’s the lowest total price we could find by $52 and the least expensive USB LCD display (touchscreen or standard) we’ve ever seen. This USB-powered touchscreen monitor features a 800×480 resolution, 375 cd/m² brightness, 30ms response time, screen cover, detachable base, and more.