The unit for gigabyte is GB, not Gb.

[Remi-Coulom]

Nitpicking, but I was a bit confused by the data at the end of the README. The official unit for gigabit is Gbit, but Gb is sometimes used too:
https://en.wikipedia.org/wiki/Data-rate_units#Decimal_multiples_of_bits
https://en.wikipedia.org/wiki/Gigabyte