Hawking Technology H-BR49 - Manual (Page 9)

Port/button Functions
a 5V DC Connects the power adapter plug.
b Internet Connects to a Cable/xDSL modem.
c Local (1-4)
Four RJ-45 dual-speed (10/100Mbps) auto-sensing ports
for connecting with either 10Mbps or 100Mbps Ethernet
connections.
d (Factory) RESET
Press for at least 5 seconds to restore to factory settings.
Performing the Factory Reset will erase all previously entered
device settings.