【No dedicated app needed, incredibly convenient!】 Still hesitant about downloading an app? Now, you don't need to download an app; simply insert the USB memory stick to back up your smartphone data. Compared to USB memory sticks that require an app, those without a dedicated app are easier to use, especially for users who prefer not to download apps. 【Multi-functional USB Memory】 This USB memory stick is equipped with four connectors: iOS, Type-C, USB, and Micro USB. Compared to USB memory sticks with only one connector, this new generation 4-in-1 iPhone-compatible USB memory stick is more innovative. You can connect different models depending on the port, making data transfer between devices easy. You can also share data such as photos, videos, and files without needing the internet, Wi-Fi, iTunes, or a USB cable. 【High Compatibility】 This USB memory stick has four connectors, making it compatible with almost all devices. iOS devices: All iPhone series, all iPad series; Android devices: Android smartphones, Type-C smartphones; PC: Computers, Macbook Pro/Air, laptops (Please refer to the product description for compatible models). The iPhone-compatible USB memory stick is equipped with functions such as photo storage, data backup, video transfer, file editing, and music playback, making data transfer between iOS devices, computers, and Android smartphones easy. 【High-Speed Data Transfer】 Compared to other USB drives, this USB memory stick is faster. Even with a large amount of data, you can copy it all at once, significantly reducing data backup time, making it an essential smartphone backup device in this high-speed technology era. The USB memory stick's read speed can reach 30-80MB/s, and the write speed can reach 10-30MB/s. (Note: The actual speed depends on the read and write speeds of the hard disk.)