Original Nvidia GeForce GTX 260 260M DDR3 1GB Graphics Video Card for Asus G Series G60VX G50VT G51VX G51 G60 G60V G51V Notebook MXM III VGA Board Replacement [GTX260M-C] - $66.99 :
Nvidia Geforce GTX 260 896 MB PCI-E Retro Graphics Card Tested and Working | eBay
ASUS GeForce GTX 260 Video Card ENGTX260/HTDI/896M - Newegg.com
Amazon.com: Original Graphics Card GPU Replacement, for Asus Gaming Laptop ROG G71 G72 Series G71G G71GX G71V G72GX Notebook PC, NVIDIA GeForce GTX 260M GDDR3 1GB G92-751-B1 VGA MXM Video Board Repair