Having bought one, I can now confirm that the Kühn 81340 – Decoder N025-P, 90 degree, 0.7A, NEM651 chip is a direct replacement for the Roco 10735 decoder used on their H0e Hf110c and Mh6 locos. Nice, smooth running and a top prototype speed of 25mph on my Hf110c loco straight out of the box.