This For.A HVS-392WOU control surface comes with a correct power supply. It's designed for use with the HVS-390HS switcher. However, please note that the plastic screen cover is loose.

To use this For.A HVS-392WOU control surface, first connect it to the HVS-390HS switcher using the correct power supply provided. You can then start controlling the switcher through the 28 - button interface. When handling the device, be gentle as the plastic screen cover is loose. To maintain it, keep it in a clean and dry place. Avoid exposing it to extreme temperatures or humidity. Regularly check the power connection to ensure stable operation.