Despite the absence of buttons, dials, and dipswitches, the HDC-2A is a powerful problem solver. Our 4K Conditioner, using proprietary Transformative Engineering technology, is designed to stabilize and correct HDMI signals that may have been compromised by nonconforming HDMI devices. Many HDMI products may not present a signal with correct EDID, “handshake,” or HDCP protocols. As a result, you may experience intermitent or unsatisfactory display. We recognize that and solve most of these issues by establishing a proper “handshake” at the input to this device (with your source) so that your display will operate reliably. This Conditioner/HDMI Fixer passes ARC (Audio Return Channel) and HEC (Home Ethernet Connection). The HDC-2A now includes a Contact Closure to provide feedback to a control system. It is powered by an included 5VDC Power Supply. In addition, we provide a USB port for future firmware updates.