I used this unit between my switcher and the amp rack. Here's what Boogie say about it:- https://www.mesaboogie.com/tone-tools/buffers-line-drivers-line-balancing/clearlink-output-buffer-balanced-line-driver.html
It has to be said, I had no idea it would even be useful until I bought it and it really did 'clean up' the clarity of the sound along the combined length of the guitar to switcher and switcher to amp cable run. You will see it can also be used as a DI (though I never did). It has velcro on the bottom, where it was on my board.
Price is shipped to the UK (in its original box).