4 Port 10/100Mbps Poe Ethernet Switch with 2 Port Uplink Active/Passive Poe Adaptive - China Poe Switch and 4 Port Poe Switch price | Made-in-China.com
Active or Passive PoE, That is the Question | NETGEAR
4 Port Gigabit PoE Switch, Non-Standard Passive PoE Injector, DC9V-48V PoE Injector, PoE Adapter Compatible with IEEE802.3af / AT Network Devices, for IP Camera : Amazon.de: Computer & Accessories
8port Gigabit Ethernet Switch Passive Poe 1000mbps Switch Power Over Ethernet For Ubnt / Mikrotik / 802.3af Or 24v 48v Devices - Camera Power - AliExpress