Club 3D CAC-1010-A DisplayPort to DVI Dual-Link DVI-D Active Adapter for Your Monitor/Display - USB A Powered – 2560x1600 Resolution NO HDCP Support, This is Adapter is for Apple Cinema Monitors.

This Display DVID Dual link Adapter is for certain Apple Cinema Monitors without HDCP support. This adapter does not transmit HDCP signals and works with older Apple Cinema Monitors without HDCP support.