1: This module uses the chip of MTT architecture (multiple transceivers), which can expand one USB interface to 7 USB interfaces, with overcurrent protection function 2: It has the characteristics of high performance, low power consumption and low cost, and supports USB high-speed 480Mbps 3: 7 LED lights to indicate when data transmission is supported 4: With overcurrent protection function 5: Simple to use No need for any driver, directly support , Linux, Android, etc., plug and play Intelligent identification, each USB interface has a corresponding LED, which only light up when it is working normally Automatic sleep, the USB port connected to the computer has a device indicator light, when no device is inserted, the LED lights up for about 2S and automatically turns off to enter the energy-saving mode FE master, USB 2.0 480Mbps high speed Each USB interface has a large-capacity capacitor filter to the purity of the power supply and improve stability Connect the computer with a 500mA fuse to protect the USB interface of the computer, and the downstream USB interface has a 2A fuse, which can drive high-current equipment With DC5V power supply interface, if you need to connect high-power devices such as mobile hard disks, USB 4G cards, etc., you can use an external power supply to strengthen the power supply, the micro-USB/DC power supply can be seamlessly switched, and the USB port power be automatically cut off when the DC power supply is connected. Interface: Micro-USB Colour: Material:PC Package Contents: 1 x USB expansion module(Due to different product batches, the appearance , which does not affect the use) 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.