Awm 20251 Console Cable Driver Download |verified|
Guide: AWM 20251 Console Cable Driver Download & Setup
If you are holding a USB console cable with the label AWM 20251 (often associated with brands like Cisco, TrendNet, or generic "Cisco Compatible" cables) and your computer isn't recognizing it, you likely need the correct driver.
This is a very common issue with network engineering gear. Below is the direct solution to get your cable working.
Step-by-Step Installation Guide (Windows 11/10)
Situation: Your AWM 20251 cable is not working. Follow this sequence:
Step 1 – Uninstall old/faulty drivers
- Open Device Manager.
- Right-click the unknown device or the “Prolific USB-to-Serial” with error.
- Select Uninstall device – check “Delete the driver software for this device.”
- Unplug the cable.
Step 2 – Download the correct driver (based on your hardware ID from above)
Step 3 – Install in safe mode or with signature enforcement disabled (for Prolific legacy)
- For Windows 11: Hold Shift while clicking Restart. Navigate to Troubleshoot > Advanced Options > Startup Settings > Restart > Press 7 (Disable driver signature enforcement).
Step 4 – Run the installer as Administrator Awm 20251 Console Cable Driver Download
- Right-click the
.exe or .inf file and select “Run as administrator.”
Step 5 – Reboot and plug the cable
- Connect the AWM 20251 cable to your PC and the network device.
- Open Device Manager – you should see “Prolific USB-to-Serial Comm Port (COM3)” with no errors.
Identify the cable chipset (do this first)
- Look at the adapter housing for markings: “FTDI”, “Prolific”, “CH340”, “CH341”, or model numbers.
- Plug the cable into your computer and check device manager / system report:
- Windows: Right-click Start → Device Manager → look under “Ports (COM & LPT)” or “Other devices”.
- macOS: Open Terminal and run: ls /dev/tty.* or system_report (Apple menu → About This Mac → System Report → USB).
- Linux: dmesg | tail or ls /dev/ttyUSB* and lsusb to show vendor/product IDs.
- Note vendor/product IDs (VID:PID) or the device name; that reveals the chipset.
Final Checklist: Installing Your AWM 20251 Driver Successfully
- [ ] Identified the chipset (Prolific, WCH, or Silicon Labs)
- [ ] Downloaded driver only from the official manufacturer site
- [ ] Disabled driver signature enforcement (if needed)
- [ ] Uninstalled conflicting drivers first
- [ ] Verified COM port number in PuTTY or screen
- [ ] Set terminal to 9600 baud, 8N1, no flow control
macOS and Linux Guide
How to Identify Your Chipset (Without Opening the Cable)
On Windows:
- Plug in the AWM 20251 cable.
- Open Device Manager (Right-click Start > Device Manager).
- Look under Ports (COM & LPT) – if you see "USB Serial Port (COMx)" or "Prolific USB-to-Serial Comm Port".
- If it shows as Unknown Device, right-click > Properties > Details tab > Hardware Ids. Look for:
VID_067B&PID_2303 → Prolific PL2303
VID_0403&PID_6001 → FTDI FT232
VID_1A86&PID_7523 → CH340
On macOS/Linux:
Open Terminal and run system_profiler SPUSBDataType (macOS) or lsusb (Linux). Look for entries mentioning "Prolific," "FTDI," or "WCH." Guide: AWM 20251 Console Cable Driver Download &
Q3: My cable has no markings. How do I find the chipset?
Install a tool like USBDeview or check Device Manager Hardware IDs (see Part 2).
Part 3: Safe AWM 20251 Console Cable Driver Download (By Chipset)
Now that you know your chipset, download the correct driver from the official source. Never use "driver updater" software or third-party download aggregators.
For WCH CH340 Chips
- Download: WCH official IC site
- Latest version: v3.8 (Windows), v1.7 (macOS) – updated Dec 2025
- File name:
CH341SER.EXE (self-extracting installer)
- Features: No counterfeit issues, supports ARM and x64.