Additional data is typically around 1 euro per gibibyte.

A gibibyte per second (GiB/s) is a unit of data transfer rate equal to:

This definition is synonymous with the unambiguous IEC standard name gibibyte.

In order to address this the International Electrotechnical Commission has been promoting the use of the term gibibyte for the binary definition.

The byte is the most common unit of measurement of information (megabyte, mebibyte, gigabyte, gibibyte, etc.).

Terms like megabyte and gigabyte mean much the same to everyone, and terms like mebibyte and gibibyte have been formally standardised.

The gibibyte is a standards-based binary multiple (prefix gibi, symbol Gi) of the byte, a unit of digital information storage.

When referring to RAM sizes it most often (see binary prefix adoption) has a binary interpretation of 1024 bytes, i.e. as an alias for gibibyte.

Some ISPs offer bigger blocks at a lower price; subscribers of Belgacom's "Internet Favorite" for instance can buy a 20 gibibyte block for 5 euro.

The first level of over-provisioning comes from the computation of the capacity and the use of units for gigabyte (GB) where in fact it should be written as gibibyte (GiB).

In 1998 the International Electrotechnical Commission (IEC) proposed standards for binary prefixes and requiring the use of gigabyte to strictly denote 1000 bytes and gibibyte to denote 1024 bytes.

The difference between units based on decimal and binary prefixes increases as a semi-logarithmic (linear-log) function-for example, the decimal kilobyte value is nearly 98% of the kibibyte, a megabyte is under 96% of a mebibyte, and a gigabyte is just over 93% of a gibibyte value.