A pairs must be used when installing. Adoption of 8 TVS gas discharge tube lightning protection technoiogy. Ethernet cable splitter meets the performance requirements of cat5 / cat5e / cat6 / cat7 network cables. Thicken environmental friendly PCB circuitboard. This ethernet spiltter adapter is different from 1 to 3 network splitter, as 1 to 3 one can't allow two devices to be online at the same time. Precautions - RJ45 splitter adapter is to resolve connection problem caused by insufficient cords,through the physical tap way connection to achieve network split in half so that enables two devices online at the same time, plug and play, and don't need to set. Working principle - Internet splitter adapter is to devide one original pre-embedded network cable (8 cores) into two groups(1236/4578), respectively, transmit date. Safety and stability - environmental protection and flame retardant ABS plastic shell, fixed RJ45 interface, 8 TVS gas discharge tube lightning protection technology, shielding electromagnetic interference, preventing network signal loss or damage. 2PCS RJ45 Splitter Adapter 1 to 2 Dual Female USB to Ethernet Splitter,rj45 Splitter Adapter 1 To 2 Female Ethernet Cable... Remaches De Golpe,Aluminum Core Rivets with Round Head ( 100 /200 Pieces),2024 Upgrade Knock Type Expansion Aluminum Rivets,Half Round Head Hammer Drive Blind Rivets (200pcs Samsung Network Extender 2 LINKMALL RJ45 Ethernet Splitter Adapter, 1 To 2 Ethernet Moca Adapter product introduction This product is used in pairs to allow you to use a pre-embedded 8-core network cable for two devices to access the internet at the same time. Ethernet splitter connector Usage - (1) Use a single adapter : It can be used as ethernet cable extender, but only port 1 available to be used. Lan splitter is purely physical connection, and does not have the function of assigning IP address, also not with the router or switch. Reference product display picture. (2) Use a pair of adapter: One network can be divided into two, enabling two devices online at the same time. Two groups signal transmission do not interfere with each other.