Mbit vs Mb

Mbit and Mb both are nouns.

Word	Noun	Adjective	Verb	Adverb
Mbit	Yes	No	No	No
Mb	Yes	No	No	No

As nouns, Mbit and Mb are synonyms defined as:

Mbit and Mb: a unit of information equal to 1000 kilobits or 10^6 (1,000,000) bits

Other synonyms of Mbit include megabit.

Mbit (noun)	Mb (noun)
a unit of information equal to 1000 kilobits or 10^6 (1,000,000) bits	a unit of information equal to 1000 kilobits or 10^6 (1,000,000) bits