About real capacity 32GB = approximately 28GB-30GB 64GB = approximately 58GB-60GB 128GB = approximately 119GB-120GB This 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. DataTraveler Exodia USB Flash Drive with Protective Cap and Keyring in Multiple Colors Kingston's DataTraveler® Exodia features USB 3.2 Gen 1 performance for easy access to laptops, desktop PCs, monitors and other digital devices. DT Exodia allows quick transfers and convenient storage of documents, music, videos and more. Its practical design and fashionable colors make it ideal for everyday use at work, home, school or wherever you need to take your data. DT Exodia is available in capacities up to 256GB and is backed by a five-year warranty, free technical support and legendary Kingston® reliability. Large loop easily attaches to key rings Practical cap protects the USB plug Multiple color options by capacity Specification: 1.Brand:Kingston 2.Series:DataTraveler 100 G3 3.Model:DT100G3 4.Capacity:32GB,64 GB,128GB,256GB 5.Interface:USB 3.0 Type-A Gen 1 6.Backward Compatible: with USB 2.0 7.Read speed up to 70MB/s 8.Design1：Capless Design Means There Is No Cap to Lose or Misplace 9.Design2：Quick and Easy to Use 10.Operating Temperature Range:0°C - 60°C 11.Storage Temperature Range:-20°C - 85°C 12.Dimensions:60 x 21.2 x 10 mm 13.Write speed up to 10MB/s In package: 1* Flash Drive