RJ45 Network 1 to 3 Port Ethernet Adapter Splitter,Sprtjoy RJ45 Male to 3 x Female LAN Ethernet Splitter Adapter Cable Compatible with Cat5, Cat5e, Cat6, Cat7 LAN Ethernet Socket Connector Adapter Allow two computers to share high speed DSL, standard 8P8C design. It can compatible with Cat5, Cat5e, Cat6, Cat7. Easily convert your RJ45 connection in to three RJ45 sockets with this network splitter. Solve the router port number is not enough:This adapter Advantage Design: A notebook in three different fixed position often back and forth use, this is a very trouble, the network cable to lead to broken, this rj45 1 to 3 ways RJ45 ethernet splitter help you do not have to pull back and forth cable. Solve the problem of insufficient number of rooms installed network cable: If you have one network cable installed in your room, you havethree computers (or other devices: Such as a TV) you use this RJ45 1 to 3 ways RJ45 ethernet splitter help you do not have to pull back and forth cable. NOTE: This Ethernet splitter allows all(three) computers to share one Ethernet line ONE AT A TIME, but it doesn't support both computer to connect onto the internet simultaneously.