Look under or Ports (COM & LPT) . You will likely see "USB-Serial Controller" with a yellow exclamation mark. Right-click it > Properties > Details tab. Select Hardware Ids from the dropdown. If you see VID_067B&PID_2303 , it is a Prolific chip. If you see VID_1A86&PID_7523 , it is a CH340 chip. 2. Where to Download the Drivers
Visit the official WCH.CN website or search for "CH341SER.EXE." 3. Installation Guide for Windows 7 Follow these steps to ensure the driver "sticks": Disconnect the cable from your computer. omega usb serial cable driver download windows 7
Connecting legacy hardware to a Windows 7 machine often requires a Bridge Controller, and the is one of the most common tools for the job. However, because these cables use specific chipsets—most often from Prolific or FTDI—finding the exact driver can be a bit of a hunt. Look under or Ports (COM & LPT)
Select .
This 2008-era driver is the most stable for Windows 7 and works with older PL2303 HXA/XA chips that the latest Windows updates might block. For CH340 / CH341 Select Hardware Ids from the dropdown