Product name: Two-port network interface switch Interface: RJ45 2 In 1 Out or 1 In 2 Out Product weight: about 100g colour:Black Material:ABS size:77 x 50 x 20mm Package Contents: 2 x 2 Port RJ45 Network Switch 2 x USB Cable 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. 2.Satisfy the use of your dual network, company intranet and company extranet; also meet your single network, dual computer use, practical function, convenient use 3.Mini design, easy to carry, can be placed on the desktop at will No power supply, no electronic switch, no electrical interference to network signals 1.With switching function and distribution function, it can switch between 2 network interface inputs and 1 network interface output; or distribution function of 1 network interface input and 2 network interface outputs. Applicable to various industries such as securities market and education 4.True physical isolation, no electrical connection between internal and external networks 5.Engineering plastic shell design, fast heat dissipation, resistance, anti-static