Used - Very Good: EVGA GeForce GT 740 Superclocked Video Card 04G-P4-3748-KR - Newegg.com
Amazon.com: RKRLJX Fit for GIGABYTE Graphics Card Original GT740 1GB 128Bit GDDR5 Video Cards Fit for NVIDIA Geforce GT 740 VGA Cards Stronger Than GTX650 Graphics Card : Electronics
Best Buy: EVGA GeForce GT 740 2GB DDR3 PCI Express 3.0 Superclocked Graphics Card Black 02G-P4-2742-KR