Excellent connection and transmission performance. The Ethernet cable splitter uses a gold-plated needle core, metal shield, fixed RJ45 interface, which protects against external EML, RFI such as electromagnetic interference, and the signal transmission is more stable to ensure signal transmission. Signal Protection. The Ethernet splitter can protect against external electromagnetic signal interference and avoid damage to the internet signal. With excellent connection and transmission performance. 1 Male to 3 Female. The 1 Male to 3 Female RJ45 Ethernet Splitter solves the problem of avoiding pulling cables back and forth. It can also be used as an extension. With this splitter, 3 network cables can be connected to a longer network cable. It allows a laptop to access Ethernet in another room without having to pull cables from another room to connect to the laptop. Note: This RJ45 1 male to 3 female allows three computers to share an Ethernet line at a time, but it does not support three computers connecting to the internet simultaneously. Wide Compatibility. Compatible with ADSL, hubs, switches, TVs, set-top boxes, routers, wireless devices, computers. Works with all networks, home and office, and all broadband connections.