2 Ring Modulators
3mm face plate
Mounting depth 50mm
Dimensions: 5U single width; compatible with Moon Modular, synthesizers.com, Club of the Knobs, ...
Power requirements: +/-15V

http://curetronic.com/product/dual-ring-modulator/

• ? mA +15V
• ? mA -15V
• ? mA 5V

No info about availability.