MokerLink 3-Port Gigabit PoE Passthrough Switch, IEEE 802.3af/at PoE Repeater, 100/1000Mbps, 1 PoE in 2 PoE Out, Wall Mounted, PoE Extender/Injector/Network Extender Three in One: Amazon.co.uk: Computers & Accessories
UBIQUITI Outdoor 4-Port PoE Passthrough Switch (N-SW) - The source for WiFi products at best prices in UK - wifi-stock.co.uk
4 Port Gigabit PoE Passthrough Switch Ethernet Extender Up to 100/1000Mb | eBay
Gigabit Ethernet POE Extender 1 Port 60W in 2 Ports 30W Out POE Passthrough Switch Compliant with IEEE802.3af/at/bt and Extends UP to 100 Meter PX202 : Amazon.co.uk: Computers & Accessories
airMAX - Guide to Power-over-Ethernet (PoE) Bridge Scenarios – Ubiquiti Help Center