【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 1 to 3 RJ45 Ethernet splitter helps you avoid pulling cables back and forth and prevent cable breakage. It is compatible with ADSL, hubs, switches, TV, set-top box, router, wireless device, computer, suitable for Cat5, Cat5e, Cat6, Cat7. Excellent connection and transmission performance: The Ethernet cable splitter uses a gold-plated needle core, metal shielding, fixed RJ45 interface, shielding the outside world EML, RFI such as electromagnetic interference, the transmission signal is more stable to ensure signal transmission. 【The best design】Use this RJ45 splitter when you regularly use a laptop in 3 different rooms, it helps you avoid having to pull your network cable back and forth between the three rooms and you don't have to