4GB = approximately 3.6GB-3.9GB
8GB = approximately 7.4GB-7.8GB
16GB = approximately 14.2GB-15GB
32GB = approximately 28GB-30GB
64GB = approximately 58GB-60GB
128GB = approximately 110GB-120GB
This is calculation difference between manufacturer and your PC, please search on 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.
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