This adapter ensures a more stable electrical voltage for the HDMI cable. Use this adapter if e.g. the source device cannot supply sufficient voltage to the HDMI cable. With this adapter you can fix errors with hot-plug, EDID, HDCP, CEC. Qualified for active optical HDMI hybrid cables, HDMI actice cables, HDMI converter cables, HDMI copper cables, aso. Please note that digital signals are not boost or changed with this adapter. · Connections: HDMI-A plug to HDMI-A jack + USB-A plug · Resolution up to: 4K2K (60 Hz), 4K2K (30 Hz), 1080p (3D) · Supports color sampling in 4:4:4, 4:2:2 and 4:2:0 format · Supports: ARC, HDCP, 3D, CEC, HEC, HDR10, HLG · Bandwidth up to: 18 Gbps · HDMI Standard: High Speed with Ethernet · HDMI plug: moulded, gold plated · Color: black · Length USB cable: 0.5m