The Difference Between GB and GiB Follow

GB (Gigabyte) and GiB (Gibibyte) are two different digital data storage scales defined by the International Electrotechnical Commission (IEC).

In short - GiB is base 2, GB is base 10.

  • GiB = 2 to the 30th power (1,073,741,824) bytes (base 2)
  • GB = 10 to the 9th power (1,000,000,000) bytes (base 10)

USABLE CAPACITY (FAT32)

When you mount the SSD to a computer, the computer may show a different storage capacity than the capacity in the SSD name. The following reasons may cause different storage capacity to be displayed:

  • Each operating system calculates storage capacity differently.
  • Each operating system may measure the storage either in Gigabytes (GB) or Gibibytes (GiB).
  • The SSD format (FAT32 vs other formats) affects the capacity.

The table below shows the storage capacity in GB and GiB for each RED MINI-MAG (when formatted as FAT32).

SSD Type Usable Space (GB) Usable Space (GiB)
RED MINI-MAG 120GB 120.02GB 111.78GiB
RED MINI-MAG 240GB 240.03GB 223.54GiB
RED MINI-MAG 480GB 480.05GB 447.08GiB
RED MINI-MAG 960GB 960.08GB 894.14GiB
RED MINI-MAG 1TB 1024.08GB 953.75GiB
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