1USB2.0 Interface: No need for a driver, plug and play. Universal compatibility, our premium USB flash drives for Windows/for OS and many other devices, you can easily transfer data or content with fast plug and play functionality. 2Usb2.0 TypeC Mobile Phone and Computer Dual Purpose U Disk: Equipped with adapters compatible with more different interface devices, interface: USB2.0 (with USB C interface adapter). Write speed: 4MB/s (related to computer configuration), read speed: 12MB/s (related to computer configuration). 3Portable: Comes with a keychain, can be attached to a backpack, belt or hung around your neck. Portable keychain, sturdy and durable / compact and easy to carry / The keychain is more sturdy and portable design, can be easily put into a key, pocket, briefcase, desk drawer or travel bag, not easy to lose; you can take your digital world to any place. 4High Quality Material: Made of aluminum alloy material, strong and durable. U disk is easily suitable for a variety of scenarios, whether it is business office, study, entertainment, it is your intimate companion. 5Safe and Reliable: Provide you with safe, reliable, portable storage devices and provide high quality products. Item Type:USB Flash Disk Material: Aluminum Alloy Interface: USB2.0 (With USB C Interface Adapter) Write Speed: 4MB/s (Related to Computer Configuration) Read Speed: 12MB/s (Related to Computer Configuration) Compatible: for Windows/for OS Ultra Portable Storage Devices: Replacing for Windows/for OS Compatible Floppy Disks and CDs 1 x U Disk 1 x USB C Interface Adapter