https://files.wifihw.cz/attachstore/StoItem/_4/4847/NetMetal%20ac2.pdf
new hardware old driver?
Anyone know that device can work of 2.4 and 5 Ghz at the same time or not?
I think yes maybe it use the same board of https://mikrotik.com/product/lhg_xl_52_ac
I don’t know how Mikrotik dares to get new products in arm with the problems he has even if they deny them
What problems you are referring to?
TDMA problem, spectral scan…
TDMA issue has been solved!! Spectral scan is a mirage
This is not an realy update, they had just the problem, that the used Chipset in NetMetal will not longer be available at world market…
So they have to Switch to something newer, nothing special after 6 years …
in conclusion we have new hardware with the old problem of ac, mikrotik software
No words from mikrotik 
Mikrotik’s policy is to deny or the problem or not to answer, there is nothing to do
Old net metal & all old mikrotik AC still unstable, sometimes randomly reboot if we USE FIREWALL, WMM IN BRIDGE MODE, p2mp under heavy traffic. I send mikrotik many support.rif 
I hope that this new version works better and stay more stable. Waiting for announcements.
Regards.
i cant understand Why a device over 100 USD using IPQ4019 still carries only 16MB of onboard storage
definitively some MikroTik decisions are beyond consumer understanding
I have problems with LDF AC. still reboot at any time, Only 802.11AC work but not as stable but it’s nowhere near as good as ldf 5 802.11n.
I don’t know what device to buy to push about 200mbps to 8km link from crowed town to village
i am considering trying wireless bonding with two LDF 802.11n and two 750Ggr3 behind
If your spectrum is crowded don’t use something that crowed it more like Bonding links
look for something that supports smaller channel Bandwidth with higher spectrum efficiency
Use Antennas with high shields and small sidelobes