G1105PD 5Port Gigabit PD Switch With 4-Port PoE Five 10/100/1000 Mbps auto-negotiation ports Port 5 supports power supply by a PSE compliant with IEEE 802.3af/at Ports 1 - 4 support power supply to low-power PDs compliant with IEEE 802.3af The switch supports auto MDI/MDIX, simplifing the network structure and maintenance The non-blocking wire-speed forwarding function guarantees the smooth operation of network applications Full-duplex flow control and half-duplex back pressure control prevent frame loss caused by port blocking The switch supports the store-and-forward transfer mode and a 2 K MAC address table The switch supports 9K jumbo frame, improving the forwarding rate of large files The switch supports IP camera connection and guarantees the smoothness and clearness of monitoring videos