Amazon.com: PoE Injector, 48V Power Over Ethernet Adapter, 10/100Mbps IEEE802.3af/at Compliant for Most Polycom/Aastra/Ubiquiti/Amcrest/Realink IP Camera and Phones : Electronics
Amazon.com: 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 : Electronics
48 V PoE Adapter - Tint Technologies
POE Injector 48V 0.5A Power Over Ethernet Adapter For POE IP Camera Switch | eBay
Ubiquiti POE-24-24W-G 24V DC 1A 24W Gigabit PoE Adapter