[Elecraft] K3: supplied power cable specs?

[Doug Faunt N6TQS +1-510-655-8604]

I've got my K3 (#22) and the power cable is a kit.

BTW, the radio is built and tested, after a minor problem, and the
radio project for the day is update the firmware and clear a space for
it at the operating position.  I'm also working on memorizing the
manual.  But I have too many projects, and I want to take advantage of
the good weather for outside stuff.

73, doug