1 to 3 Ethernet Splitter Does not support 3 computers connected to the Internet at the same time. (Note: This product is not a switch, so three computers cannot share the Internet at the same time, only one output port is supported.) Compatibility This splitter Ethernet 1 to 3 RJ45 helps you avoid pulling cables back and forth and avoid cable breaks. It is compatible with ADSL, hubs, switches, TV, set-top box, router, wireless device, computer, suitable for Cat5, Cat5e, Cat6, Cat7. Excellent connection and performance transmission: the Ethernet cable splitter uses gold-plated needle core, metal shielding, fixed RJ45 interface, shielding from the outside world EML, RFI such as electromagnetic interference, the transmission signal is more stable to ensure transmission of signal. The best design Use this RJ45 splitter when you regularly use a laptop in 3 different rooms, it helps you not to have to pull your network cable from back and forth between the three rooms and you don't have to worry about not having internet in your room. Note: When connected to three devices, you You can switch flexibly by clicking the disconnect network and connecting to the network programs of both devices. You will need to disable the device's auto-network feature in settings or unplug the device that is not connected. Otherwise, three devices will not be able to connect to the network because the three devices stack each other.