4 Port Gigabit PoE Extender (IEEE 802.3af/at/bt) PoE Injector, DIN-Ra
2 Port POE Extender 10,100Mbps Comply IEEE 802.3af/at Standard, POE Repeater 100 mètres (328 ft) Extender 1 in 2 Out for POE IP Camera Over Cat5 / Cat6 Or Better UTP Cables (POE5003) : Amazon.fr: Informatique
PoE IEEE 802.3af versus IEEE 802.3at - enetelecom.com