Intel® Wireless-AC 9260 - https://ark.intel.com/products/99445/In ... ss-AC-9260
Networking Specifications
TX/RX Streams - 2x2
Bands - 2.4Ghz, 5Ghz (160Mhz)
Max Speed - 1.73Gbps
Wi-Fi CERTIFIED - 802.11ac

Mikrotik should support a range of 5 GHz and a channel width of 160 MHz!

Intel® Wireless-AC 9260 - https://ark.intel.com/products/99445/In ... ss-AC-9260
Networking Specifications
TX/RX Streams - 2x2
Bands - 2.4Ghz, 5Ghz (160Mhz)
Max Speed - 1.73Gbps
Wi-Fi CERTIFIED - 802.11ac

Mikrotik should support a range of 5 GHz and a channel width of 160 MHz!

What application do you have for this though? Surely if this is point to point then a wireless wire woudl be better at 1Gb full duplex? https://mikrotik.com/product/wireless_wire

What application do you have for this though? Surely if this is point to point then a wireless wire woudl be better at 1Gb full duplex? https://mikrotik.com/product/wireless_wire

1. Point-to-multipoint scheme
2. The client device in which the Wireless-AC 9260 is installed must be mobile
3. There is no line of sight between the client device and the access point, there are brick walls
4. The client device generates huge incoming and outgoing traffic ...

And what should I choose?

Avoid obstacles first. Or use cable instead of WiFi.