megabits per second

from The Free On-line Dictionary of Computing (8 July 2008)

megabits per second
mbps

   <unit> (Mbps, Mb/s) Millions of {bits} per second.  A unit of
   {data rate}.  1 Mb/s = 1,000,000 bits per second (not
   1,048,576).

   E.g. {Ethernet} can carry 10 Mbps.

   (2002-03-23)