The Silver-Surfer provides an additional high-speed serial port at up to 460,000bps. By default it was supplied with a 25pin serial port, but a 9pin serial port can also be used. This device also works with the A600 as an optional adaptor is available to give the A600 and A1200 compatible "clock-port". Cut into a special L shape to fit around other expansions you may have such as the Blizz-Vision. The drivers for this card were written by Harald Frank (VMC)