This SD/TF card reader Supports reading and writing two cards simultaneously. You can easily review files or back up and archive photos and videos in SD/TF cards.No drive needed for various of operation system. You can transfer picture or video from Phone/Tablet/PC to SD/TF card or from SD/TF card to Phone/Tablet/PC.The SD/TF(Micro SD ) card reader with USB support all iPhone with iOS 12.0 and up and iPads with iOS 12.0 or later/OTG Android phone/Computer and other devices with Type-C/ USB-C port. Suit for all kinds of Dash Cam/Trial Camera/Digital Camera memory cards.It is a Photography Accessories for Camera. No App to be downloaded. 5 seconds after inserting the memory card and connecting with the iPhone, click 'Photos' APP and find 'Import', then import video and photos from memory card to your iPhone or iPad.