The Techkey 256GB 3 In One USB Flash Drive is a versatile external drive compatible with iPhones and other devices. With a storage capacity of 256GB, this USB 3.0 flash drive offers a convenient and compact solution for storing and transferring large amounts of data. The manufacturer warranty of 1 year ensures reliability and peace of mind. Easy to use and with a sleek interface, this USB flash drive is a practical and efficient choice for digital storage needs.