Rolsen HDMI Coupler RTA-HA120 provides digital video, audio, and control signals in one high-performance connection. Due to compact design it reduces signal loss and provides better signal transmission from your source to the display. It will let you take advantage of up to 1440p resolution and increased color depth on your HDTV. Also it provides 3D television functionality and TrueHD. It’s double shielding is used for protection against RFI and EMI interference. This shielding helps maintain the integrity and purity of the digital signal.