There are known issue ON ONE OF THE CARDS 1 FAN BLADE IS MISSING, does not effect performance. If you wish to replace it its a 9.99 item. Other than that cards operate flawlessly.

Pulled from HP Z420 workstation with bad motherboard. Used for 3D rendering not gaming so to our knowledge not over clocked. Be sure you have a large enough power supply to run these cards. The are not power hungry cards quite the contrary ; however 600 watts is recommended.

This is the complete setup 2 ATI Firepro hd7750 cards, 2 ATI cross fire cables, and two display port to HD female cables. Awesome setup for Autocad never experianced any lag time part number 7120573000G

The only difference in the two cards is one is a standard full height, and the other is a full length card, you can remove the full length bracket it does take more space but on HP workstation it allows card to "lock in" rear.