If the FTDI driver does not work, your cable may use a Prolific chipset.
: This usually happens with Prolific cables. Windows has automatically updated your driver to a version that blocks cloned or older hardware revisions. Resolve this by downloading an older, verified PL2303 driver executable and using the "Browse my computer for drivers" option in Device Manager to force the old version.
Common in budget/generic cables, appearing as "CH340" or "USB-SERIAL". 2. Official Driver Download Links
Most enterprise networking hardware (Cisco, Juniper, HP, Ubiquiti) uses the following default serial port parameters: Awm 20251 Console Cable Driver Download
(indicating it can handle 600V and 105°C), not the model of the USB-to-Serial converter chip itself.
| Chipset | Vendor | Driver Needed | Common Issues | |--------|--------|--------------|----------------| | | Prolific Technology | PL2303 Prolific Driver | Counterfeit chips cause Code 10 errors | | FTDI FT232 | Future Technology Devices International | FTDI VCP Driver | Official drivers may brick counterfeit chips | | CH340/CH341 | WCH (Nanjing Qinheng) | CH341SER Driver | Most reliable on modern Windows |
Input the exact number found in your Device Manager (e.g., COM3 ). If the FTDI driver does not work, your
If you have purchased a USB-to-Console cable (often Blue or Black with an RJ45 or DB9 connector) and found that it is not working when plugged into your Windows, macOS, or Linux machine, you likely need to install the correct driver.
WCH (Nanjing Qinheng Microelectronics) – www.wch.cn
This guide walks you through the process of manually installing drivers, a method that resolves most connection issues. We'll use the Prolific PL2303 as an example, but the steps are nearly identical for other chipsets. Resolve this by downloading an older, verified PL2303
Faulty USB port, lack of power, or physical damage inside the thin RJ45-to-USB molding.
Now that you've identified your cable's chipset, use the following table to download the correct, official drivers directly from the source. Downloading from the chip manufacturer is the safest and most reliable method.