Wifi extender AC750

[unusedname13]

I have a wifi router that only has 5.0G  Can I use the AC750 to extend the 5G network and create a 2.4G network?

[schumaku]

AC750 might indicate some kind of speed, but not a unique device model.

When looking into https://www.netgear.com/support/  and enter AC750, there are a bunch of models showing "dual band", and a few newer models like the EX3920 support 2.4 and 5 GHz as Dual Band, too.

Check your AC750 extender product label FMI.