I needed a cable of miniDP to Dual Link DVI. In the Amazon search I first encountered the 5m cable as me but a 1m cable was enough, I ordered via the product variation of this. However, this only has DVI and not dual link DVI. The result: only 1920x1080 2560x1080 instead, no HDCP and no audio! The product variations should be used for different colors and lengths and not for completely different cable. Now I have to return the cable and hope for reimbursement.