Review on Monoprice 1x4 HDMI Amplifier Splitter - Cat6 Extender Kit, Full Solution: Extend Up to 50m (164 Feet), Transmit 1 HDMI Signal to 4 Displays (Works with PS4/5, Xbox, Apple TV, Fire Stick, Roku, Blu-Ray Player) by Seth Singh

This is a great product. I installed it at a non-profit organization along with a bunch of other accessories. Basically I made an agreement with another device that ALL AV inputs would be changed to HDMI, then I would get the HDMI output and broadcast it with that device. The signal travels about 40 feet to the overhead projector and the other two locations are 75 feet from this unit. A 4th extension cord was used to extract sound but the device used for this purpose failed. Now I'm looking for another reliable device that can extract sound from HDMI. So it's been working really well for more than a year and a half. I am 100% satisfied and would recommend this unit to anyone looking to extend HDMI signals up to 100ft from this box.