"waste of electricity"...... a bit too much to say like this bro, 4x4 not just meant for MU-MIMO, but also coverage. MU-MIMO is always tricky part to test, unless u use some device like SmallNetBuilder do to test, or else u can't really tell it's AP problem or client problem, especially when u only tested by using some models of phone. Btw, with OFDMA, MU-MIMO isn't as important as wifi 5 era anymore.

It’s Qualcomm special technology, to have 2x2 160MHz and 4x4 80MHz running simultaneously, normally if u have 2x2 160MHz client in the network will make ur 4x4 80MHz client stays in 2x2 80MHz, but Qualcomm make it possible to run both at the same time, u may do some research of it.

I am really interested to get this router since there is a way to use it on UNIFI.

But the issue mentioned has made me stumped.

I have a Asus PCE AC68 wifi adapter which is 3x3.

If pair with this router, will I still get the 3x3 link speed of 1.3Gbps?

Video quality assignment is based on your wan bandwidth and wireless connection.

Assuming your WAN bandwidth is not an issue.. 5GHz wireless connection in house definitely would get you to 4k selection.

Tried connecting ExpressVPN using L2TP protocol and surprisingly it worked. LA3 didn't work but NY2 worked. Maybe you can try it out.

Sifu, what is the advantage of Xiaomi AX1800/Redmi AX5 compared to local TP-Link AX20? Other than price. Thanks.

How about signal strength? I am trying to convince myself to save rm50 to get something from oversea without warranty compared to local unit that more expensive but with 3 years warranty.

Reviews said that it is enough for most user. And It use 14nm processor,so the performance is still winning 90% of consumer router.
(But of course mi wifi rom still need improvement for more stable and higher performance power)
The only shortcoming is switch bandwidth only max at 1gbps but for most users 1gbps is enough.

router cpu and even npu speed is for high speed connection processing, multiple user usage and high usage single or multiple user, and QoS and router VPN processing, etc. gaming use very little bandwidth, gaming is more latency than bandwidth based, unless updating games. higher speed router cpu/npu doesn't really improve gaming latency unless that router has heavy usage, or change isp provider that provide better 1st hop and destination latency.

some router provide cpu usage, user can check it out during their multiple application usage.

multiple cpu core fast or slow would higher latency alittle bit around 1ms or few ms, same for desktop cpu, but higher speed single core cpu has limitation due to temperature, etc, multiple core is the way of the future.

modern cpu would downclock cpu speed during low usage, that would also higher latency alittle bit.