Review on 🔌 J-Tech Digital HDMI 2.0 Repeater Connector Extender Signal Booster with 1080P, 4Kx2K@60HZ Support, HDCP2.2/1.4, EDID Passthrough, CEC, HDR, and 18Gbps Bandwidth by William Hood

It was very difficult to get a working solution here! My current setup is a Revain Fire Cube running a Marantz SR-7009 through this unit. The Marantz output signal is fed to the Optoma UHZ65 4k laser projector via a 15m fiber optic cable. I bought and sent back two fiber optic cables, neither of which are suitable for my new projector. In the end, I settled on a 50-foot HDMI LBG fiber optic cable (about $114). It worked great and then I was able to sync 2160p/60Hz from the FireCube to the projector so I knew it was good. Further tests 4k. Initially, the J-Tech device would not sync with the projector at all when connected to the network. I had a green status light on but no display. The solution was to set the Revain Fire Cube to 8-bit color (4:2:0). I want it to support 4:4:4 or even 4:2:2 but that won't work. Using modern short HDMI cables from the Fire Cube to the J-Tech device and another short cable to the Marantz helped a lot. On the projector side the UHZ65 has two connectors, you MUST use HDMI2 which is labeled as HDCP2. 2. It didn't work in HDMI1 for some reason, which doesn't make much sense. Not sure why.