Item specifics
Feature4:Adapter free
8GB = approximately 7.4GB-7.6GB
32GB = approximately 28GB-30GB
64GB = approximately 58GB-60GB
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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.
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