Hello, i have an gl-xe300ac and want to extend the wifi range

Hello,
i have seen from the pcb pinout that it has 2 uFl connectors near the integrated wifi antennas.
If i connect 2 external antennas there for wifi it will work?

Hi

Yes, it can be used to connect external antennas.

However, please note that disassembling the device will void the warranty.

Thanks. I know that. I have some difficulty with The Connector. Îs it an U.fl?

I have google a little and find put that it îs a murata swf switch test Connector only for testing. How can i modify the board to use external wifi antennas

It's a Mini RF I Switch Connector.

I have enclosed its dimensions diagram.
You may consider replacing it with another U.FL connector with the PCB layout compatible.