For sale is (one) unit out of a matching pair of OEM AMD Radeon HD 8990 video cards. I used 1 very lightly for a year, and the other was installed but barely used as well, for maybe a month. Both are pristine and basically used like new, asides from the scuff on the shell from inserting them into the machines (Especially around the mounting bracket. Each card has GPU support brackets on the ends) I'm downsizing to lighten a move, and just want to get them off my hands. They both work perfectly, and run stable temps at high loads. Buy them as a pair for Quad-fire, or single for Crossfire, since these are DUAL gpu cards. 4 gpu's total between the two technically. Requires 2 8 pin PCIE power cables, each. Would suggest over 1000W psu's for optimal performance if Quadfiring, 750W+ if single. No bridge or adapters included. Just to be clear, The HD 8990, is an OEM only version of the HD 7990, with slightly better specs.