Amazon.com: MTDZKJG 15V 1A POE Switch Injector, 15W 10/100Mbps Compliant IEEE 802.3af, Passive PoE Injector 2 Ports Power Over Ethernet Power Adapter for IP Cameras Mobile WLAN AP, Up to 100 Meters (
Gigabit Passive PoE Injector 24W POE Adapter 36-72V DC Input 24V PoE Output Converter (Not for 802.3af/at devices) - AliExpress
GAF-24V24W 802.3at /802.3af compatible Gigabit Converter from PoE to 24v passive PoE converter 24 Watt output Max
Ubiquiti Instant 802.3af Passive PoE to 802.3af Adapter - 48V DC Input - 24V, 500 mA Output - 1 x 10/100/1000Base-T Input Port (s) - 1 x 10/100/1000Base-T Output Port (s) - Newegg.com
Using quad passive 802.3af PoE adapters | Ubiquiti Community
DC/DC Converter GigE 802.3at PoE Injector
Instant PoE Converter, Indoor - Ubiquiti Store United States