This power adapter is identical in specifications and performance to the power supply that originally came with your BenQ FP557, at a fraction of the price you would have paid to order from the manufacturer.

This is a high quality digital power supply for your LCD Monitor. This adapter will protect your valuable equipment from both spikes and dips in power, and will shut itself down if the power becomes unstable. It is then reset by being unplugged and re-plugged in. It is vastly superior to cheap look alike adapters, and normally retails for about 55 U.S. dollars.