If the chip is labeled CP2102, you need the Silabs driver.
Here’s a step-by-step guide to install the driver on Windows 10 and get it working with DMX software.
Once your computer boots up with enforcement disabled, plug the CYL6602 interface into a USB port and follow these installation steps: USB DMX512 doesn't have a driver! - ControlBooth
This is a signature error. If you encounter this during manual installation, you may need to disable Driver Signature Enforcement temporarily:
: Highly recommended for this specific hardware. You must select "USB-DMX512 BOX" or "uDMX" in the software setup.
If the driver didn't work, download Zadig. With the device plugged in, open Zadig, select your device, and install the libusbK (v3.x.x.x) driver.
Select . Press 7 or F7 to "Disable driver signature enforcement." Once Windows boots, install the driver again. 🔗 Configuring with Lighting Software (FreeStyler/QLC+)