Heart shape USB flash drive small and light, design as a beautiful crystal pendant Easy to wear, just worn on the neck as a useful and elegant necklace Both sides integrate the magnet, hold each other tightly, prevent the lid from falling, 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 your data quickly and easily between devices. Suitable for all USB 3.0 ports that are standard in computers Windows 98 / 98SE, Me / 2000 / XP, VISTA, 7; Mac: OS 9.0 / 10.0 or higher; Linux: Kernel 2.4 or higher We pay attention to product details in order to deliver high quality USB flash drive. Beautiful heart shape pendants as well as built-in data storage pen drive to creatively design a usbful and decorative necklace Meet people's intentions for storage needs and aesthetic pursuits. Some of the listed capacity on a flash memory device is used for formatting and other functions and is therefore not used for data storage available. Therefore, the actual available capacity for data storage is less than the capacity stated on the products Our special design of USB memory stick that is easy to distinguish from others, that is pretty cool for your own use or as a novelty gift for Family, friends, and even significant others Note:Due to different light and display, the actual color may be slightly different from the picture. Thanks for your kind understanding.