Applicable to the hard disk adapter of iPhone tablet OTG data cable USB mouse keyboard multifunction converter 1. Can be used with mouse, keyboard, hub, U disk, etc. 2. Through 3 USB OTG ports, you can connect the mouse and keyboard to the mobile phone and tablet computer with 8 Pin interface at the same time 3. Mouse + keyboard + U disk + SD/TF card mode makes your work more efficient. 4. In the iOS 13 system device, through the file application, we can browse and transfer data in both directions. IOS 13 system equipment will support more file formats, such as Exc, Word, Txt, PDF, MP3, MP4, JPEG, RAW, HEIF, HEVC. Some special format files need to download the corresponding application. 5. Transfer photos or videos from the camera or memory card to the mobile phone at a speed of 12MB~16MB/S, making it easier to share photos and videos with family or friends anytime, anywhere. 6. Plug and play, no application required, support iOS 14 system. Note: 1. The SD card/TF card port and USB interface cannot be used at the same time. 2. The card reader will get a little warm when used normally and safy Basic parameters: 1. Operating voltage: 3.3-4.0V 2. Working current (USB peripheral): less than 500mA 3. Input current: 500mA-2100mA 4. Interface: 8 Pin/SD card/TF card/USB socket 5. Transmission resource speed: 12MB/S-16MB/S