Ceamere C1 USB Flash Drive 8GB/16GB/32GB/64GB Pen Drive Pendrive USB 2.0 Flash Drive Memory stick USB disk

Features:

3D Visual design

Metalic surface

Original Flash Chip

Specifications:

Reading Speed: 10MB/s+

5 years limited warranty

About capacity:

4GB=approximately 3.5GB-3.7GB

8GB=approximately 7.4GB-7.8GB

16GB=approximately 14GB-15GB

32GB=approximately 28GB-30GB

64GB=approximately 58GB-59GB

This is calculation difference between manufacturer and our PC, please Google 'Memory card capacity' to get more information