Serial Solution Company Checkpoint Technologies, USA   Date 1989   Amiga A2000, A3000, A4000   Interface Zorro II   Autoconfig ID 2055 / 0 serial interface one DB9 and one DB25 serial port the DB25 port pinout is identical to the standard Amiga serial port, it even supplies power on the same pins standard baud rates from 50 to 38400 bps custom baud rates up to 125000 bps - but both ports have to use the same rate all handshaking lines are supported: DTR, DSR, CTS, RTS, CD, RI MIDI compatible - includes a separate oscillator to produce the exact 31,250 bps MIDI rate supported by Bars & Pipes - 16 MIDI channels per port (up to 48 channels including the Amiga built-in serial port) serial driver is ckptss.device