These are model UAP-AC-M-US wireless/mesh access points. They were all used indoors.
I'm missing one of the wall mounts for one of the units, unfortunately. The wall mounts for the antennas have the small blue strip at the base.
The two additional white-only mounting plates are only for the power supplies, so they are a pretty optional item. They are all in excellent condition. Parts included are what you see in the pictures! The item "Quanity 4 Ubiquiti Networks UniFi AC Mesh Network Access Point UAP-AC-M-US" is in sale since Friday, January 31, 2020.
This item is in the category "Computers/Tablets & Networking\Home Networking & Connectivity\Wireless Access Points". The seller is "avhome77" and is located in Boulder, Colorado. This item can be shipped to United States.