Amazon.com: Outdoor PoE Passthrough Switch, 1 PoE in 3 PoE Out Extender, IEEE802.3af/at PoE Powered, 100Mbps Ethernet, Wall Mount Waterproof Plug and Play : Electronics
POE-powered POE Switches (aka POE Pass-through Switches) | Ars OpenForum
Buy Intellinet 561808, 5-Port Gigabit Switch with PoE Passthrough - Prime Buy
airMAX - Guide to Power-over-Ethernet (PoE) Bridge Scenarios – Ubiquiti Support and Help Center