Welcome to our store! USB interface, no driver required, plug and play, simple and convenient to use. The compact style and elegant appearance make it an unforgettable gift for your loved one, friends, and even customers. Small size, easy to carry with you wherever you go, a wonderful accessory. Made of high-quality aluminum alloy material, modern appearance and durable. Available in 2 different colors, you can choose according to your needs. Item Type: USB Flash Drive Material: Aluminum Alloy Optional Color: Silver, Gold Compatible with USB 1.1 / 2.0 Operating Temperature: -10 to +55 degrees Celsius Storage Temperature: -20 to +55 degrees Celsius Read Speed: 12Mb-18 Mb / S Write Speed: 4-10 Mb / S Memory: 64G The displayed capacity differs from the nominal capacity because the calculation method is different Manufacturer Standard: 1GB / 1000MB / 1MB = 1000KB Regarding usable capacity: Please note the PM regarding the storage product's capacity: 4GB = approximately 3.4GB-3.8GB 8GB=approximately 7.4GB-7.6GB 16GB=approximately 14.5GB-15.5GB 32GB=approximately 28GB-30GB 64GB=approximately 58GB-60GB 128GB=approximately 119GB-124GB 256GB=approximately 249GB-250GB 512GB=approximately 498GB-500GB Includes: 1 x USB Flash Drive If you find any product problems after receiving the goods, such as damage and incorrect quantity of goods, please contact the seller immediately. We will do our best to provide you with satisfactory customer service.