The Silencer 750 Quad power supply series gives you legendary PC Power and Cooling performance and reliability along with a unique ultra-quiet cooling design and a price that seals the deal. The brilliant red exterior of this special edition Silencer 750 PSU will look amazing in your high-performance graphics system or gaming rig, but does it perform well? Read on as figure that out with two power hungry ATI Radeon HD 2900 XT video cards running in CrossFire.