HZ = hertz = hz
KHZ = kilohertz = khz
MHZ = megahertz = mhz
GHZ = gigahertz = ghz
B = byte = b = UNIT = unit
KB = kilobyte = kb = K = k
MB = megabyte = mb = M = m
GB = gigabyte = gb = G = g
T = terabyte = tb = T = t