【iPhone SD Card Reader 4-in-1】This Lightning SD card reader is equipped with four different functional ports (SD card port, microSD card port, iPhone charging connector port, and USB 3.0 port). It can be widely used in daily life for photo transfer from cameras, data migration when changing models, file storage, and USB connection with other peripherals. 【OTG Function, Supports Two-Way Data Transfer】This Lightning card reader supports the OTG function and enables two-way data transfer between SD cards/microSD cards and smartphones/tablets/PCs. The maximum transfer speed is 720MB/s (theoretical value), allowing you to transfer about 60 photos in about 10 seconds. ※Note: SD cards and microSD cards cannot be used simultaneously. 【Fast Charging】Equipped with a charging port, you can quickly charge while using the Lightning SD card reader. Charging is possible even during data transfer, eliminating the risk of interruption due to insufficient charge. 【Plug and Play, Easy Operation】No Wi-Fi, Bluetooth, or app download is required. You can transfer data directly from the "File Management" program on your smartphone or computer. Supports simultaneous reading and writing of USB flash drives and memory cards. The compact and refined Lightning SD card reader fits neatly in your bag, making it ideal for going out or outdoor activities. 【Wide Compatibility】This USB/SD/TF adapter is compatible with various devices such as iPhone/iPad/Mac with Lightning ports. Supported standards: 【microSD card: microSD/microSDHC/microSDXC. SD card: SD/SDXC/RS-MMC/MMC/Extreme SD/Ultra SD UHS-I. USB 3.0: USB flash drives, digital cameras, microphones, keyboards, electronic keyboards, etc.】