Dual Link DVI adapter

[TheStu]

I saw a picture once of a guy that had a Dell proprietary adapter that would let him run 2 monitors off a single Dual Link DVI connection. He had a whole bunch of the images, one of his desk setup, with screen, laptop, screen. The next picture was of his display adapter which had the DVI adapter on one end going into his MacBook Pro the other end had 2 DVI cables going to the monitors. The final picture was of his Display settings on his MacBook Pro.

Does anyone know where I can find this adapter? I have looked on Dell's website, ebay, monoprice, everything I can think of.