PLUSPOE Dual Ports Gigabit Power Over Ethernet Injector Adapter (35 Watts Max) with 2 PoE for IP Cameras, VOIP Phones or Access Points and Other 802.3af Devices

Using a short patch cord (and paying attention to port labels!), this is an effective alternative to trying to fit two injectors in a small space when connecting them back-to-back.

Does exactly what it is supposed to do.

Was looking for dual port injector and it seems this is the only mfg on Amazon. I purchased on July/2020, easy setup up (just an injector) and worked awesome. Then all of sudden, in early November/2020 it died. No warning, just dead. Very disappointing.