This is a 4-channel CV/Gate controller. It comprises of an Arduino Nano combined with 12-bit DACs and some operational amplifiers. The output voltage range is from 0 to 10V. It also exposes 4 digital output pins of the Arduino as an analog gates.
This hardware works well with the outputcvgate module.
The Arduino code for the firmware of this device can be found on github.
Alternatives for this are for example the Endorphin.es Shuttle control (for which we have a corresponding EEGsynth module), the CV.OCD, the Doepfer A-190 or one of these modules on Modular Grid. Most of them are expected to work with the outputmidi module.
We have also constructed a simpler 1-channel version of this with an output range from 0 to (approximately) 5V.