Hi Lars,
This is a mount built by Rainbow Robotics in Korea, the RST-135 uses strain wave gears, weighs 3.3Kg and can handle a payload of 13.5Kg without counterweights or 18Kg with counterweights.
It can be used in ALT/AZ or EQ mode, comes with internal GPS, WiFi and an ASCOM driver plus hand controller.
http://www.rainbowastro.com/new/them...roduct-135.php
There is also a discussion on Cloudy Nights from those who have purchased this mount, explaining its pluses and minuses.
https://www.cloudynights.com/topic/6...imaging-mount/
Cheers
Bill