zb is how much gb
ZB Zettabyte 1024 EB, 1,048,576 PB, 1,073,741,824 TB, 1,099,511,627,776 GB, 1,125,899,906,842,624 MB, 1,152,921,504,606,846,976 KB, 1,180,591,620,717,411,303,424 Bytes and 9,444,732,965,739,290,427,392 bits.