mA
milliampere(s)
mAh
milliampere-hour(s)
MB
megabyte(s)
Mb
megabit(s)
Mbps
megabit(s) per second
MBR
master boot record
MDA
monochrome display adapter
MGA
monochrome graphics adapter
MHz
megahertz
mm
millimeter(s)
ms
millisecond(s)
MTBF
mean time between failures
mV
millivolt(s)