IR Repeater Hidden Infrared Remote Extender System 1 Receiver 4 Emitters Control Kit USB Adapter for Amplifier Cable Box Satellite TV Receiver CD Player DVD Player Blu-ray Player

I've been using this one with my U2 for a couple years. Works great. https://www.amazon.com/Repeater-Infrared-Extender-Amplifier-Satellite/dp/B07NK74M5R Another poster needed new transmitters for his Sofabaton X1 hub because his dog/cat chewed through the cords. He used the one I posted above and it worked fine.

I've used this one for a couple years with my U2. Works great : https://www.amazon.com/Repeater-Infrared-Extender-Amplifier-Satellite/dp/B07NK74M5R Placement of the receiver (the red bit) matters.