We assume that by DL-DVI you mean a dual-link DVI connector. This is a type of DVI connection that allows very high screen resolutions of the type found on 30in and some 27in displays (typically 2560x1600 or 2560x1440). These dual-link connectors are required on any graphics card that needs to be able to supply these high resolutions over a DVI cable and will require a dual-link DVI cable (a standard cable won't work).
If you want to use standard resolutions, such as 1920x1080 pixels or lower, you can use a single-link DVI cable regardless of the connector on your graphics card.
As computer video cable specialists, we offer a massive selection of DVI cables (including analog, digital and integrated varieties), adapters, couplers and accessories. Whether looking to connect your flatscreen computer display, HDTV or other digital video device, we have all your bases covered at CableWholesale.