Jaster | JASTER Maple Photo Album usb+Box USB 2.0 Flash drive Pendrive 4GB 8GB 16GB 32GB 64GB 128GB Photography Wedding gift

About real capacity4GB = approximately 3.6GB-3.9GB8GB = approximately 7.4GB-7.8GB16GB = approximately 14.2GB-15GB32GB = approximately 28GB-30GB64GB = approximately 58GB-60GBThis is calculation difference between manufacturer and your PC, please Google 'Memory card capacity' to get more information.Your PC says 1GB = 1.073741824 Billion bytes where Market Defines 1 GB = 1.00 Billion bytes.The pursuit of the perfect person is not recommended to buy.SPECIFICATION1. USB connection,support Hot plug & Play.2. No external power supply .3. Support different types of os.4. Solid State Storage, Shock proof and electromagnetic proof.5. Durable data storage.6. Fast speed in write/read transfer.7. Hardware Requirement: PC with USB connection,Notebook,MAC.8.Capacity:4GB/8GB/16GB/32GB/64GB