[Elecraft] USB to RS-232 Interfaces for my K-2

[Ken Miller K6CTW]

All,

With the purchase of a new computer (a laptop) after my old one (8 yrs old) finally gave up the ghost, I am confronted with a new issue.  Those nice RS-232 ports are no longer available.  Since that means using an adaptor to convert from USB to RS-232 to control the K-2, what brands have been found to work and more specifically, which should be rejected as non-functional?

Thanks in advance for any/all help/comments/etc.

Ken Miller, K6CTW   K-2 # 455