Cheapest that works
802.3af PoE injector
IEEE 802.3af PoE into the RJ45 network port. Active injector, not passive.
The phone has 802.3af PoE built in, so any 802.3af switch port or injector runs it.
Search this on AmazonConference rooms / Polycom
PoE on the network port, or the 48V power kit
Verified November 2026
Current, Polarity not confirmed. Read the label on your item.
Buying a kit for a phone on a PoE port that does not need one.