Sandisk Memory Cards 8/16/32/64/128

About capacity: (A).8GB = 1000/= (B).16GB = approximately 14GB-15GB-1500/= (C).32GB = approximately 28GB-30GB-1500/= (D).64GB = approximately 58GB-60GB -2200/= (C).128GB = approximately 115GB-120GB - 4500 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 1GB = 1.00 Billion bytes.