Lemeng RJ45 Splitter Adapter 1 to 2 Dual Female Port CAT 5/CAT 6 LAN Ethernet Socket Splitter Connector Adapter Don't Allow two computers to share high speed DSL, cable modem and Ethernet ports at same time Please note that it cannot be used to split a port on a router or a modem Easily convert your RJ45 connection in to two RJ45 sockets with this network splitter This compact design allows you to comfortably increase the number of RJ45 network connections on an RJ45 outlet Metal Shield Both Solid: Fixed RJ45 interface,Shielding the outside world EML,RFI Such as electromagnetic interference, to prevent damage, to the lack of network signals.