I have never seen a thumb drive advertised using anything other than base 10. You have probably assumed that since thumb drives and SD cards typically have capa

I have never seen a thumb drive advertised using anything other than base 10. You have probably assumed that since thumb drives and SD cards typically have capacities of 8/16/32/64 GB that the GB are actually GiB. But that assumption is wrong. Check out the actual capacity. As I mentioned in the blog post, every flash drive and SD card that I have checked has used the base-10 GB. The extra capacity is there, but it is kept in reserve for bad blocks and headroom needed for efficient use of flash. It is entirely invisible outside of the flash drive. Base 10 is far more prevalent in computing than most computer experts realize.