(1) (GB) (
Giga
Byte) One billion bytes (technically 1,073,741,824 bytes). See
giga and
space/time.
(2) (Gb) (
Giga
Bit) One billion bits (technically 1,073,741,824 bits). Lower case "b" for bit and "B" for byte are not always followed and often misprinted. Thus, Gb may refer to gigabyte. See
Gbps,
giga and
space/time.
Bytes, Not Bits
Upper case "B" means bytes in this product package.