The Yocto-0-10V-Tx is a USB device with to channels that can generate independant voltages between 0 and 10V, for instance to control dimmable LED drivers. Each canal can drive up to 20mA.
The two PWM channels share the same ground, but are galvanically insulated from the USB bus, even though they don't need an external power supply. This will allow you to drive main-powered equipments without risking to fry your computer.
USB cables and enclosure to be ordered separately.