Bought one of these as an AP while back. Very small and compact design. Doesn't come with a POE adapter. Recommend this one. (https://www.pbtech.co.nz/product/NETUBI91105/Ubiquiti-U-POE-af-Passive-PoE-Injector-Only-work-w) Can be ceiling mounted by putting a "works box" onto the ceiling. Dont need a cloud controller to use.