updated 11:58 am EDT, Wed May 2, 2012
AOC e2251Fwu has no other connections than USB
Display maker AOC is finally shipping its USB-powered e2251Fwu monitor that was introduced last June. The 21.5-inch, 1080p LED monitor gets both signal and power through a USB 2.0 connection, making it ideal for use as a secondary display. The monitor is just 10.6mm thick and sports a detachable stand.
Otherwise, the monitor has a 5ms response time, a 250cd/m2 brightness, a 1,000:1 dynamic contrast ratio, and supports Windows and Max OS X operating systems. It cannot be used with sources other than PCs, however, as there are no other connections.
The monitor is now available, priced at $200.