The "AWM 20251" is just a casing/model number. The actual chip inside is almost certainly one of these:
The is not a specific model of console cable, but rather a UL style rating for "Silver Satin" flat telephone wire commonly used in manufacturing RJ45-to-DB9 serial console cables for networking gear like Cisco or Juniper. awm 20251 console cable driver download fix
By following these steps, your cable should be fully operational, allowing you to configure your console devices without further headache. The "AWM 20251" is just a casing/model number
The "AWM 20251" text on the cable jacket actually refers to the wiring standard (UL rating), not the internal chip. To fix the driver, you must identify the hardware inside the USB connector: Right-click and select Device Manager . Expand Ports (COM & LPT) or Other Devices . Right-click the problematic device and select Properties . The "AWM 20251" text on the cable jacket
Firmware and cable authenticity:
Once the yellow exclamation mark disappears, open your terminal emulator (PuTTY, Tera Term, or Mobaxterm). 9600 (usually) Data bits: 8 Stop bits: 1 Parity: None Flow control: None Summary Table Likely Cause Yellow Triangle Missing Driver Identify VID/PID and install FTDI or Prolific driver. Code 10 Error Incompatible/Clone Chip Roll back to an older driver version (2008-2012). No Data in PuTTY Wrong Baud Rate Ensure settings match your hardware (Standard is 9600).
(Windows 10/11 only for older Prolific drivers):