Can you use a SRAM 10-speed Powerlock with a Shimano chain/drivetrain?
They will work fine together- same if you swap the brands around. I've done this many times for myself and for others with no issue and it's common practice amongst bike shops. This is strictly marketing &amp; legal covering of their own asses. If you look at Wippermann Connex Link compatibility they say that the one link is compatible with SRAM, Shimano, and Campy. They're all so close in terms of the spacing that interchanging their quick links doesn't make a difference.

As an aside, those Wippermann Connex quick links rock. Tool free installation and removal, and it's almost impossible for them to come undone while riding.