Kramer’s AOCH is an Active Optical HDMI Cable running 4K at 60Hz 4:2:0 UHD, 4K at 30Hz 4:4:4, over longer distances up to 100m (328'), in a simple and practical way. The AOCH cables are thinner, lighter, and more flexible than copper or even standard optical cables while providing transparent EDID and HDCP support without signal attenuation and also provide reduced risk of EMI and RFI interference which provides a perfect solution for critical AV installations that demand the highest signal integrity.