There is always a small difference between the memory capacity shown on the packaging and that shown on a computer. There are two reasons for this:

I. Part of the memory of your EMTEC storage device is reserved by the system for its own operation.

Exemple :
A 512 GB SSD contains 512,000,000,000 bytes

Depending on the type of formatting (file system) the difference will be greater or lesser for the same SSD. See screenshots below*

II. Difference in the way humans and computers calculate:

The memory capacity of the storage devices is always indicated in the decimal system in accordance with the International System of Units (SI), this applies to the packaging, product sheets and websites of the SSDs.
1 GB = 10⁹ Bytes = 1 000 000 000 Bytes = 1 billion Bytes

However, computers do not work with the decimal system as humans do, but with the binary system. In the binary system the unit is the GiB and not the GB.
1 GiB = 2³⁰ Bytes = 1 073 741 824 Bytes

Exemple :
A 480GB storage device that is 512,000,000,000 bytes.
If we convert this value to GB: 512,000,000,000 / 1,000,000,000 = 512 GB.
If we convert this value into GiB: 512,000,000,000 / 1,073,741,824 = 476 GiB
So 512 GB = 476 GiB

III. To display the capacities of storage devices some OS (Operating System) display GB and others GiB.

Attention ! Windows is an OS that does not respect the International System (SI)
In Windows the value of the memory capacities is displayed in binary (GiB) but the unit of capacity is displayed in Decimal (GB). This unit error can mislead the unsuspecting user as it generates a capacity discrepancy of about 7%.

Windows rounds values to the tenth (maximum of one digit after the decimal point).
Therefore: the values displayed in Windows should be 512 GB ou 476 GiB but not 476 GB*.

Capacity :  512 086 327 296 bytes  476GB(480GB = 476 GiB)

Under MacOS the values and the unit of the memory capacities are in decimal. Apple respects the International System (SI).

Therefore: the value displayed in MacOS is 512,1 GB*.

IV. Value table

The values below are indicative and may vary depending on the SSD model and the type of formatting

*All screenshots on this page were taken with the same Storage Device.