Electronic charting without a serial port...
I just purchased garmin''s USB-RS2323 adapter. It works, but I''m not on all aplications in the US Lights and Waterways software. I can''t say I''m overjoyed with it. It''s really designed for something else and I''m sure it''s not manufactured by garmin. It has a 9 pin male plug on one end but it also has screws to hold it down as does the female 9 pin end of the garmin cord. BARELY worth the 50 bucks, but it will get the information to your GPS.
MY COMPUTER SAY''S ITS NOT XP CERTIFIED