[Coco] Drivewire cable - Where to get it?

[Fedor Steeman]

Hi,

I just realized I have HDBDOS 1.2 on a cartridge, so I guess that means I
can readily use Drivewire. I just need a Drivewire cable going from my
CoCo's serial port to the computer. However, I cannot seem to be able to
find where to order such a cable. And what if your computer no longer has a
serial port, but only USB?

Cheers,
Fedor