Ucom 208-2 Driver ((full)) 90%

Not always. If the chip is actually Prolific, yes. But many "Ucom 208-2" units use CH340, which requires a different driver.

, and look for "Human Interface Devices." If there is a yellow exclamation mark next to "HID-compliant game controller," right-click it and select "Update driver". USB Port Power ucom 208-2 driver

Why does it need a specific driver? Many UCOM 208-2 units do not use a standard chipset like the FTDI or Prolific PL2303. Instead, they often rely on (such as the Silicon Labs CP210x, or older Winbond chips). Consequently, Windows does not natively recognize the device, requiring a dedicated ucom 208-2 driver . Not always