Nordost vs Synergistic Research

I would check with your nearest Nordost retailer.  A few years ago Nordost put together demo cases for their retailers that contained the complete Norse line of cables.  Power cords, interconnects and speaker cables.  I was able to demo the Tyre 2 speaker cables and IC's for a couple of weeks.... If your closest Nordost retailer doesn't have the demo package call Nordost and have them refer you to a retailer that does.

You'll probably find that Triode Wire Labs have exactly what you need - and they'll fit the right connector to go under the Devialet rear panel.

Or spend a LOT more for the SR Devialet specific cable.