Ucom 208-2 Driver | SAFE

UCOM 208-2 is a popular USB-to-Serial (RS232) adapter, commonly used to connect older hardware—like industrial equipment, satellite receivers, or networking gear—to modern computers. Because these adapters rely on specific chipsets, finding the right driver is essential for the device to show up as a functional COM port. 1. Identifying the Chipset

When asking for help, always provide:

Vendor ID (VID) and Product ID (PID)

The driver compatibility depends entirely on the . For a counterfeit or generic Ucom 208-2 adapter, Windows may reject official Prolific drivers after 2012 due to anti-counterfeit measures.

Baud rate errors (garbage characters in terminal)

Download the official Prolific Mac driver v1.8.0 (or newer).
Go to System Preferences > Security & Privacy > Allow the kernel extension.
Reboot. The port appears as /dev/cu.PL2303*.

Windows doesn’t use "ucom" naming. Install the vendor-provided USB-serial driver (FTDI, Prolific, CP210x, CDC driver) — check Device Manager for COM ports.

Your PC isn't detecting the "Twin USB Gamepad" or "USB Joystick" correctly.

timing-sensitive analog device

If you encounter one in a system, treat it as a — not a transparent cable extender. Use a scope on the RS-485 side to verify driver enable timing if communication is flaky.

Vendor ID (VID) and Product ID (PID)

Baud rate errors (garbage characters in terminal)

timing-sensitive analog device

Ucom 208-2 Driver | SAFE – 2025 |