Unigraf DP Ref Sink HDCP CTS Tool 065035 can be used witheither the DPR-100 or the UFG 04 DP frame grabber. The functionality of the CTS tool is identical between the two devices. The tool GUI consists of the following seven task oriented dialogs. They are accessible through tabs or pull-down menus from the main dialog. The PC with CTS software is connected to to the UFG 04 DP using a RS-232 port and to the DPR-100 through a USB port.