> I simply bought a USB serial adaptor. The cheapest that Bamboo Charlie > had in stock. > > It just worked. It was so low priced that if it didn't I'd have just > tossed it in the spare parts box and bought another. AFAIK most of them > work.
There are roughly 20 USB serial variants on the market. 8 of them own the entire market, and we support those very well. Beyond that, we support 6 more. The rest? We have trouble finding them, or we would support them better... they are assuredly less than 1% of the market. These units are really cheap. Just buy them. If they don't work, send them to us, and we'll try to improve support for the remaining ones.