A unit of data storage.
Because zettabytes are ambiguous and misuse the prefix "zetta" as defined by the International System of Units, the International Electrotechnical Commission established Exbibytes in 2000.
A Zebibyte is always 2^70, or 1,180,591,620,717,411,303,424 bytes.
Zebibytes are 1,024 Exbibytes and precede yobi in byte measurement.