I bought a Cardas connector and fixed my own on a used cable. So, yes, they do fail on occasion. Good cables.
Cardas Power Cords
Has anyone had any problem with the male plug on Cardas Clear Beyond XL power cords? The ground prong on several cables has come loose. I am not sure if this affects the performance or safety. Might have to send them back to be repaired under warranty as they have done before. I want to see if this is an on going problem with the plug and how to avoid the issue from happening.