This RJ45 1 to 2 RJ45 Ethernet splitter can be used as an extension cable Using 8-pin gold-plated core to transmission of signals. Can shield the external electromagnetic signal interference to prevent damage to the internet signal. Installation simple and easy to use. (Note: When one port is connected to , another port device must be disconnected to the internet.) Allows a laptop to access Ethernet in different rooms, without having to pull the cable from other room toTHE - to connect to this computer colour:Black Material:ABS size:Cable length about 30cm Package Contents: 1 x Adapter Cable Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.