Compliant with the PoE technology 802.3at/af, the AirLive POE GSH420 60 switch supports a standard power of 15.4W (802.3af) and has a max of 30W (802.3at) on Port 1~4 with 2 Gigabit Uplink ports. The switch automatically detects and adaptively supplies needed power to connected PoE devices; for non PoE devices, it will just transfer data intelligently.