The Yocto-0-10V-Tx is a USB device with to channels that can generate independent voltages between 0 and 10V, for instance to control dimmable LED drivers. Each channel 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 allows you to drive main-powered equipment without risking to fry your computer.
USB cables and enclosures to be ordered separately.