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,
H36-042-30 - AETEK
8 Port PoE Switch For Mobile Installations - 12v DC Powered Power over Ethernet - YouTube
5 Ports DC12-48V Input Full Gigabit POE Switch with Voltage Booster | Linovision Global Store
Gigabit IEEE 802.3af/at PoE Injector (12v Only)
5 Ports Full Gigabit POE Switch with DC12V ~ DC48V Input and Voltage Booster,Total IEEE802.3at POE Power Budget 120W | LINOVISION US Store
Amazon.com: LINOVISION DC12V POE Injector with DC 12 Volt to POE 24V/48V Voltage Booster, POE for Solar/Vehicle, or act as UPS POE Switch Supports AC110V Input and Backup Battery, Stopless POE Power