This card reader is designed with plug and play function, so you can use it conveniently without installing driver. USB interface is used for power supply, it does not need external power supply, and LED light can show whether it is in working state. With 480Mbps transfer rate, this card reader is convenient for fast transmission of MP3/PDA/mobile phones, digital cameras and other product materials. You can directly view, copy and edit images/data/music/media through the card reader. It is constructed of ABS material. The USB 2.0 interface of the computer and the for Android system of the mobile phone do not need a driver, but can quickly browse and edit files directly on the flash drive. The length of this product is 5.7cm, the width is 1.7cm and the height is 1cm. The USB2.0 interface is compatible with USB1.1 and has fast transmission speed. The system for Window Vista/for Win98/ME/2003/XP/7/8/for Mac OS/for Android system is supported without driver. It supports computers, mobile phones and tablets with OTG functions, such as for Xiaomi/for Huawei/for Sony/for Samsung Galaxy S3/S4/NOTE 2/3. It supports the mobile phone/computer to directly read the data on the SD-Card/TF memory card without card sleeve. Item Name: Card Reader Material: ABS Color: Random Color Interface: Micro USB, USB2.0 Transmission Rate: 480Mbps Features: Multifunctional, High Speed Transfer, Plug and Play Size Details: L: 5.7cm/2.24", W: 1.7cm/0.67", H: 1cm/0.39"(Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 5 x 1 x Card Reader