A five-port 100Mbps switch designed by TP-LINK,providing five 10/100Mbps adaptive RJ45 ports and each port support Auto MDI/MDIX function and wire-speed forwarding.1-4 port has PoE function,supports IEEE 802.3af standard and the machine can output PoE power of 21W.It can be used as an Ethernet power supply device and automatically detect the standard power receiving equipment and power supply through the network cable.The TL-SF1005SP is simple to use,plug-and-play and extends the home and office network flexibly without powerline layout.