I have a BFGtech GeForce 7800GS-OC the OC is "overclocked!" by BFGTech not by me. This is big and heavy but its a beast and at times sounds like a small airplane when its the fan is cranked underload. The item has VGA and DVI connections on the back with built-in fan and heat sink OEM You need to plug this item into one of the power wires from you power supply to operate it (Ex. the same power wires that plug into & power up IDE CD/DVD drive or IDE Hard drive) This item was a recent pull from a working pc for upgrading and is re-tested to have it show a picture and diplay properly. Contact me via the number in this ad (voice/text) but if you cant reach me leave a message & I'll contact you ASAP cause I work long night shifts Thanks Michael