Megabits per second. Transfer rate of 1 milion bits per seconde.

(megabits or gigabits per second) Units for measuring rate of digital information transfer - a megabit per second is a rate of one million bits per second; a gigabit, one thousand million bits. New optical fibre technologies can transfer information at the rate of one thousand gigabits, or one terabit, per second.

A measure of the bit rate, i.e. the rate at which bits are passing a given point. Commonly used to give the “speed” of a network. A LAN might run at 10 or 100 Mbit/s. See also Bit rate.