Outdoor Wireless AP suggestion

Hi, I have the following situation (picture below). I need to connect 2 offices wirelessly. The distance between the two offices is about 400m with line of sight. The speed (300Mbp+) and the stability of the link between the two offices is very important. Can someone suggest the best Mikrotik devices (outdoor wireless ap with antena) for the described situation?
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You will not get such speed in reality. Using 2x2 mimo gives a bit more than 200 mbits /s. Maybe by some ac device… Sxt5 ac for example.

You need two sxt5 lite. Bridgr to bridge


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I use 2 SXT 5 for years and it is a verry stable connection.
The distance is about 700 Meters.
Speed is between the 200 and 240Mbps.

Now I replace them with SXT5 AC and hope the connection is as stable as it was and the speed will be a bit higher.

SXT Lite5 in bridge will not provide requested 300+Mbit/s speed. If there is such requirement, the ac is necessary.

Yes, SXT AC will work with such requirement