So, something like this ...
https://www.amazon.com/NanoBeam-NBE-5AC-Gen2-US-Dedicated-Management-Bandwidth/dp/B07FK7DMDY
looks like it consists of two units with PoE, so feed a signal into one side, take it out of the other?
I'd opt for a set of these instead: https://smile.amazon.com/NanoBeam-NBE-5AC-Gen2-US-Dedicated-Management-Bandwidth/dp/B07FK7DMDY/ref=sr_1_2?crid=18ZOT5927MHBI&keywords=nanobeam+5ac+gen2&qid=1557797669&s=gateway&sprefix=nanobeam+5ac%2Celectronics%2C128&sr=8-2
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Higher throughput and 802.11ac vice 802.11n