New RT97L GMRS repeater is 25Watts is advertised
The Retevis RT97L repeater utilizes a 9-pin DB9 connector for auxiliary connections. It’s important to note that Retevis has modified the DB9 port’s pinout in the RT97L model compared to previous versions like the RT97S. Specifically, one of the ground pins in the RT97S has been changed to a +3.6V supply in the RT97L. Additionally, the COR/BUSY pin behavior has been altered; it now pulls an external 5V signal to ground when active, rather than outputting 5V when idle.
https://www.retevis.com/retevis-rt97l-25w-gmrs-repeater-kit-with-frp-antenna-and-coaxial-cable-us