Tp-link 4-port Poe Switch Fiber Media Converter Fiber Transceiver Single Mode Single Port Sc (tl-fc114pb) - Network Switches - AliExpress
Intellinet 4-Port Gigabit Ultra PoE Extender (561617) – Intellinet Europe
Amazon.com: IPCamPower 4 Port 802.3bt POE Network Switch W/ 2 Uplink Ports | Designed for POE Lighting and High Powered IP Cameras | POE++ Capable of Pushing 60 Watts per Port | 250 Watts Total Budget : Electronics