BPS-500 is a missile boat in service with the Vietnam People's Navy. Is was the only missiles boat built under the project KBO 2000 where Vietnam started to domestically built this class in the late 1990s.
bps is a measurement of the speed at which computer data is transferred, for example by a modem. bps is an abbreviation for 'bits per second'. (COMPUTING)
A minimum 28,800 bps modem is probably the slowest you'll want to put up with.