What is Reddit's opinion of MikroTik GPeR?
From 3.5 billion Reddit comments

By popularity on Reddit, this product is:

#1475 in Everything Else

#139 in Computer Networking Antennas

I second this advice.

Here is another option, for a similar PoE Extender, MikroTik GPeR

Depending on the power your switch can provide, you could use an extender MikroTik GPeR

If you do have problems, you can try one of these:

< $25

< $50