4 Port Gigabit Midspan - PoE+ Injector - Ethernet Extenders | Networking IO Products | StarTech.com United Kingdom
Switch poe 4 ports BAS-IP SH-20.4
12-48V 4 Port POE Power Supply Module Adapter,4 Port PoE Ethernet Power Supply Injector, Gigabit Ethernet PoE Ethernet Desktop Switch for IP Camera, Compatible with International Safety Standards: Amazon.co.uk: Computers & Accessories