CC2531 with external antenna

I found this in an Aliexpress shop
zigbee

Has anyone tried using this CC2531 Usb stick with external antenna?
Do you think it has the same features as the version without an external antenna?

Thank you

Yes,
that is what i use as my routers

Have you tried using this cc2531+amplifier as a coordinator too?

For the CC2530, there is different firmware for the CC2530 by itself, and the CC2530+2591 amp. So if you use the CC2531+amp, are you using the non-amplifier firmware?

I don’t know why the firmware would change if there’s an amplifier front end.