The ATEN VC080 is a HDMI EDID Emulator, which is designed to emulate and store the EDID of a video display, providing constant and reliable EDID data for the a HDMI source device to efficiently optimize video resolution. 1x VC080 4K HDMI EDID Emulator with Programmer 1x LIN5-04A2-J13G RS-232 Configuration Cable 1x LIN5-02U1-701G USB to DC Power Cord 1x User Instructions