Gigabit PoE Injector Power Supply 48V 0.5A (VX-PI1000GB)
Amazon.com: PoE Injector Adapter, NEWCARE 48V Gigabit PoE Adapter 30W, RJ-45 10/100/1000 Mbps, Up to 100 Meters (328 Feet), Support Wall-Mount, Use for IP Camera AP Switch 45+ 78- PoE Power Supply(Non-Standard) :
Ubiquiti Networks 48V PoE Adapter with Gigabit LAN POE-48-24W-G