Efficient expansion: Easily realize the transformation from one interface to four interfaces to meet the needs of connecting multiple devices at the same time. Strong compatibility: Suitable for various USB devices, water-cooled screen USB, fan screen USB, chassis sub-screen USB, air-cooled radiator screen USB. Easy installation: Magnetic installation, simple and convenient. Small and portable, exquisite design, and does not take up space. The method of use is simple and easy to understand. Just plug the hub into the USB interface of the computer and you can immediately enjoy four available USB interfaces. Stable transmission: Using advanced technology to stable and reliable data transmission without disconnection or data loss. Note: 4 USB2.0 ports, A1-A3 are not limited, but A4 port can only be plugged into the cold controller/Bluetooth/WiFi, etc., and cannot be plugged into the chassis panel. Interface Type: USB 2.0 Ports: 4 Product Interface: USB2.0 9PIN Voltage: DC5V Colour:Black Material:Plastic+PCB The printing/appearance from batch to batch, but will not affect the use Package Contents: 1 x USB2.0 HUB with 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.