【RJ45 1-to-4 Ethernet Splitter】This RJ45 1-to-4 Ethernet splitter helps prevent cable wear and tear, providing a smooth transmission. It's compatible with ADSL, hubs, TVs, set-top boxes, routers, wireless devices, and computers. Works with Cat5, Cat5e, Cat6, and Cat7 cables. 【Not a Router – Splitter Only】Please note that this is a splitter, not a router. It cannot allow two devices to access the internet simultaneously. It simply divides the Ethernet signal into multiple outputs. 【Durable & Safe Design】Made with a 2mm thick PCB board and embedded conductive circuits to prevent conductor damage and leakage. The pure copper gold-plated pins provide stable transmission and reduce interference for a more reliable internet connection. 【Perfect for Router Port Expansion】This adapter is ideal for expanding limited router ports. It eliminates the hassle of constantly moving cables and prevents wear and tear, ensuring a more organized and efficient setup. 【High-Quality Materials】Crafted with high-purity copper (OFC) contact terminals, LDPE/PVC insulation, and a high safety design. Specification: Material: high purity copper (OFC) conductor contact terminal, polyethylene (LDPE)/PVC insulation Connector A: RJ45 male Connector B: RJ45 female x 4 Compatible cables: Cat7, Cat6, Cat5, Cat5e Compatible devices: ADSL, hubs, switches, TVs, set-top boxes, routers, wireless devices, computers Note: Cannot support two computers sharing an Ethernet cable at the same time.