This is due to formatting. All storage devices have less usable storage space than the raw capacity after formatting.
http://kb.sandisk.com/app/answers/detail/a_id/46/kw/capacity%20is%20less%20than%20expected
This is due to formatting. All storage devices have less usable storage space than the raw capacity after formatting.
http://kb.sandisk.com/app/answers/detail/a_id/46/kw/capacity%20is%20less%20than%20expected