This fan caught my eye at Staples for $15.99! I bought it to keep my Magnum Raptor Transceiver cool during heavy DX conditions. This radio uses a RFX-75 rf final with an external heat sink. Has a mini switch inline to control the fan speed: 600 rpms & 1000 rpms. You can get all the specifications on this fan at: http://www.antec.com/Believe_it/prod...?id=MjYxNSYxNQ Nice and quiet, Bulldog.