It's definitely a lot better. Finally it's usable. Previously even the TM DIR-615 has better wifi than it. Now even in the toilet, I can check my email.

Are there any hardware differences between the G and the U, aside from more RAM and the GB switch?

I'm going to try 6.0rc5 with the U and see if it's all in the OS.

@weikee: Do you know where to buy mmcx-rpsma converter pigtail? Thinking of trying an external antenna.

wah Mikrotik now so many users. I’m still using my RB750 from so many years ago. good to see this.

i got this from shopee.
https://shopee.com.my/Adjustable-5-9-12V-18...80549.727907068
use 4 recycled batteries from laptop and it works. just testing I use it to power my rb750gl. can select 5,9,12v.

actually not sure how to put it to good use yet.