This just came out of my desktop, only used for gaming. Runs fine, uses a single 8-pin. Won't bore you reading a spec sheet Asus has it:
$230 shipped, Paypal. US48 only.
Dual Mini|Graphics Cards|ASUS Global
ASUS Dual MINI graphics cards are specifically designed to bring the thermal performance of larger cards to the evolving small-form-factor market. A balanced blend of performance and cooling power make the MINI an obvious choice for those looking for high-end graphics where full-sized cards just...
www.asus.com
$230 shipped, Paypal. US48 only.