switch has the function of network signal switching, which can allow multiple computers to share a network, and can also allow one computer to switch between internal and external networks. The product does not require driver installation, just plug and play. Convenient and fast, share and work easily. One computer shares the internal and external network and can be easily switched Physical isolation, effectively preventing IP series connection, safe and stable Button switching, no need to install the driver, convenient and fast Colour:Black Material:iron Size: 119.5x84x29mm Due to different batches, there may be differences in product appearance and printed text, which not affect use Package Contents: 1 x Network 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.