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) :
Tycon Systems 9-36VDC IN. 48V 24W Gigabit Passive PoE OUT. DC to DC Converter and PoE Injector
48v Poe Injector Ethernet Cctv Power Adapter 0.5a 24w,poe Pin4/5(+),7/8(-) Compatible With Ieee802.3af For Ip Camera Ip Phones - Camera Power - AliExpress
PoE Injector 8 Port 48V 24V Add Power over Ethernet To Any Switch MikroTik Accessories
UBIQUITI NETWORKS POE-48 48V POE ADAPTER WITH POWER CORD - WirelessUnits.com