Feature: 1. Using gold-plated core to ensure transmission of signals. The PCB board is embedded with conductive circuits to avoid damage to the conductors. 2. Shielding Signal Interference: The Ethernet cable splitter can shielding external electromagnetic signal interference and prevent damage to the Internet signal. 3. Function: RJ45 splitter adapter is mainly to defend the router and facilitate plugging and unplugging. 4 net cables can be connected into a longer cable through this splitter. 4. Expanded Access: Either net splitter allows laptops to access ethernet in different rooms without having to pull cables from other rooms to rooms to connect to this computer. 5. Simple Operation: you connect one ethernet cable from the wall to the splitter cable, one from the splitter to one computer (or laptop, and one from the splitter to the other computer. Specification: Item Type: RJ45 Ethernet Splitter Cable Material: ABS, PCB Product Interface: 4 x RJ45 Net Port Colour: Black Package List: 1 x RJ45 Ethernet Splitter Cable Note: Does not support a net cable split out at the same time to connect 2 or 3 net cable supply computer use. Note: Only one interface can be used not more than one interface at the same time.