The available capacity: 57GB-60GB, FAT32 is factory default drive format, which is read/write compatible with Windows and Mac OS; while NTFS is compatible with Windows but semi-compatible with Mac OS. Please format it properly if you need. Compatible with USB 2.0. Backwards compatible with USB 1.1. Supports Windows 10/8.1/8/7/Vista/XP/2000/ME/NT, Linux and Mac OS. A unique and thoughtful gift idea with eye-catching designs that look attractive and decorative. Sweet gift for your family, friends or wedding clients. Durable performance: water-resistant, dustproof, shock-resistant, high temperature resistant and magnetic resistant, making the memory stick ideal for reliable data storage. USB thumb drive requires no setup; simply plug it into your laptop or desktop to access or store data. It can be used to store music, photos, designs, files, movies, documents, portable programs and other types of data. Easy to store and easy to carry. All USB flash drives are backed up with 1 Year Warranty, Free Technical Support & Lifetime Friendly Customer Service.