This product is either discontinued or we cannot get that from suppliers.
STARTECH DVIDDMM6 DVI-D Dual Link Cable - M/M, DVI DDWG Standard, Aluminum-Mylar Foil with Braid, Nickel Plated, 6.0 ft [1.8 m], BLACK/WHITE
The DVIDDMM6 6ft DVI-D Dual Link cable features 2 male DVI (25-pin) connectors and provides a reliable, purely digital connection between your desktop or laptop computer and a DVI-D monitor or projector.