Amazon.com: Sonew 4K*2K HDMI Signal Amplifier 40M Repeater Adapter Female to Female for TV/Digital, Single Output Amplifier Boost Your HD TV/FM/DAB Signal : Electronics
HDMI CAT Extender 4K120 – 40m (HDExt4K120)
Cables To Go 30021 4K HDMI HDBaseT 40M 1 Gang Wall PlateTX | Full Compass Systems
40m HDMI Cable Active High Speed with Ethernet | TVCables
4Xem HDMI 2.0 4K Active Optical Fiber Cable, 40m (4XFIBERHDMI40M)
HDMI; IR CAT6 Extender Pro 40m | $450 | The Connectivity Center