Motorola M6800 Stand Alone Computer
The Motorola Stand Alone Computer uses the M6800 microprocessor and has the MIKBUG II firmware and was released in 1979. It was used in some systems such as the Motorola TDS. The board appears to have two serial ports and two peripheral ports.
This board was made in 1979 which is late in the 6800 development. It may be similar to the MEK6800D2 which could run MIKBUG II as an option.