This driver package enables communication between USB-to-serial adapters and Windows 10 64-bit (x64) and 32-bit (x86) systems. It supports common chipsets including , CH340 , CP210x , FTDI , and HL340 .
After installing the driver, your adapter will be assigned a COM port number (e.g., COM3, COM4, COM5). Some legacy software only looks for COM1 through COM4. If your device was assigned COM7, your software might not see it. usb serial port driver windows 10 x64 x86 download
: The driver must match the specific chip inside the cable—often from brands like Prolific or FTDI —rather than the cable's brand name. Some legacy software only looks for COM1 through COM4
| Chipset | Common In | Windows 10 Support | Reliability | | :--- | :--- | :--- | :--- | | | Older cables, GPS units | Problematic on Win10 (fake chips) | Low/Medium | | FTDI FT232 | High-end industrial cables | Excellent, built-in via Windows Update | High | | Silicon Labs CP210x | Arduino, smart home hubs | Very good, native driver available | High | | CH340/CH341 | Cheap Arduino clones, ESP8266 | Good, requires manual download | Medium | | Chipset | Common In | Windows 10
Right-click "This PC" → Properties → Look under "System type."
Here is how to change the COM port number: