From Amazon
StarTech.com Dual Link DVI-I Cable - 6 ft - Digital and Analog - Male to Male Cable - Computer Monitor Cable - DVI Cord - DVI to DVI Cable (DVIIDMM6)
EE Store
StarTech.com 6 ft DVI-I Dual Link Digital Analog Monitor Cable M/M
This product is also available at 2 unverified merchants.