dwujcikBW limit is set in kBytes per second.
Internet connections are measured in Mbits per second.
8 bits to a byte, plus overhead. Keep that in mind.
1024kBytes/sec = 8Mb/s. Note capitalization, lower case b = bit, upper case B = byte. Makes a difference on the M too, but there's no such thing as a millibyte to a computer so that one is implied...