Long service life: Switching can reach more than 80K times. No power supply: There is no interference to the network signal. Small and delicate: Easy to carry. Plug and play. The technology is mature. Atmospheric elegance. Physical isolation: Real physical isolation. Intranet and extranet handover is free. They will not disturb each other. High safety factor. It can freely control the network cable on or off, easy to install. Color:Purple Material:plastic Package Contents: 3 x Network RJ45 Control Switch Only the above package content, other products are not included. Note: Light reflection 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.