Get double barrel multi-GPU gaming performance that works with all games by adding a HIS X1800 CrossfireℿEdition graphics card for powerful GPU sharing. Starting with a HIS CrossFire Ready graphic card and motherboard, using a single external cable unites another HIS CrossFireℿEdition co-processor graphic card. HIS CrossFireℿaccelerates all your games, all the time, and delivers the highest image quality modes and resolutions with no special software or patches needed for compatibility.