66 ft (20M). Extra-Long High Speed HDMI Cable, 4K UHD 1080P@60Hz, BUILT TO LAST | eBay
Amazon.com: 20M HDMI Cable 20 Meter (65' FT) Male to Male Long Length Premium Cable with EQ Extender, 1M End Cable and Gold Connectors, 24 AWG, High Definition Multi-Media Interface : Electronics
4K at 60Hz and 18Gbps AOC Fiber Optic HDMI Cable 20m | FiberMall
Amazon.com: StarTech.com 65 ft (20m) High Speed HDMI Cable – Male to Male - Active - 28AWG - CL2 Rated In-wall Installation - Ultra HD 4K x 2K - Active HDMI Cable (HDMM20MA) Black
Amazon.com: Ultra Clarity Cables Flat HDMI Cable 20 ft - High Speed HDMI Cord - Supports, 4K Video at 60 Hz, 3D, 2160p - HDMI Latest Standard - CL3 Rated - 20 Feet : Electronics
Amazon.com: StarTech.com 20 ft HDMI Cable - Ultra HD 4K x 2K HDMI Cord - M / M - High Speed HDMI to HDMI Cable for a Laptop / Computer / TV (HDMM20) : Electronics