Heart-shaped U disk is small and light, designed like a beautiful crystal pendant Easy to wear, just wear it around your neck, as a practical and elegant necklace with integrated magnets on both sides, grip each other tightly to prevent the cover from falling off, made of metal material, anti-vibration, anti-electromagnetic interference, waterproof , keep your files safe USB 3.0 enabled data transfer speed: write speed 6 MB/S; read speed 15 MB/S. Transfer data between devices quickly and easily. Compatible with all standard USB 3.0 ports in computers Windows 98 / 98SE, Me / 2000 / XP, VISTA, 7; Mac: OS 9.0 / 10.0 or later; Linux: Kernel 2.4 or later We pay attention to product details to provide high-quality USB flash drives. Beautiful heart pendant with built-in data storage pen drive for creative design as a functional and decorative necklace Meet people's intentions for storage needs and aesthetic pursuits. Some of the capacity listed on a flash memory device is used for formatting and other functions and therefore is not used for usable data storage. Therefore, the actual available data storage capacity is less than the capacity marked on the product Our specially designed USB memory sticks are easy to distinguish, perfect for your own use or as a novelty gift for family, friends or even a significant other Note: Due to different lighting and monitors, the actual color may be slightly different from the picture. Thank you for your understanding.