PoE injector w/ DC jack 2.1mm. Compatible 5v, 12v, 18v, 24v, 48v Power Supplies. Passive POE
Amazon.com: PoE Ethernet Power Supply 4 Port POE DC 12V-48V Power Adapter Injector for IP Camera 802.3af/802.3at Device : Electronics
Amazon.com: Connector Cable 1000Mbps 5V 12V 24V 48V/1A POE Injector Power Splitter for IP Camera POE Adapter Module Accessories : Electronics
Injector & Splitter POE (12V DC, 2A Output)
Amazon.com: PoE Texas 12 Volt PoE+ - IEEE 802.3at - Splitter Splits Power Over Ethernet to 12v DC & Gigabit Data with Opto-Isolation Protection for 12v 25w Devices, Tablets, Single Board Computers,
Amazon.com: Active 12V PoE Splitter Power Over Ethernet Adapter Injector IEEE 802.3af Compliant Power Over Ethernet for PoE Switches IP Camera IP Phone POE Devices : Electronics
Amazon.com: Active PoE Splitter 12V 1A Output with IEEE 802.3af Standard Compliant 10,100Mbps Power Over Ethernet Splitter Adapter for Security IP Camera CCTV Surveillance Device 5.5x2.1mm (PS5712P Black) : Electronics
Gigabit PoE injector or POE splitter external power supply from 12v to 56v up to 60watt Injector/Splitter for POE+802.3at - AliExpress
802.3af POE Injector, 12V - Rfwel Engr E-Store
Gigabit IEEE 802.3af/at PoE Injector (12v Only)
Gigabit Poe Injector Cable Use As Poe Splitter Or Poe Injector From 12v -56v For Mikrotik And Other Poe Products - Generic Cabling System - AliExpress