The Challenger Ultimate by ThermalTake, which uses membrane switches. The Challenger Ultimate keyboard uses a gold plated USB detachable connection, with a 2m cable. And has 256 individual colours of backlighting and is 505 X 195 X 27mm [LxWxH].
The CHALLENGER Ultimate gaming keyboard is the highest end keyboard from the CHALLENGER series. True to the CHALLENGER name, the CHALLENGER Ultimate has cooling fans but this time there's more of everything: more colors for back-lighting, more macro keys with both dedicated and definable macro keys, more connectivity with a built in sound card.