Lexar USB 3.0 M35 USB Flash Drive JUMPDRIVE Pendrive 64GB 32GB Pen Drive High Speed 100MB/s Mini U Disk Flash Drive
About Capacity:
16GB=approximately 14GB-15GB
32GB=approximately 28GB-30GB
64GB=approximately 58GB-59GB
128GB=approximately 110GB-120GB
Please Google 'Memory card capacity' to get more information.