Profilic ELM327 USB Drivers for PL2303 3.4.67.325
Driver package for Windows XP–8.1, 32-bit & 64-bit. Released Aug 15, 2014.
- Manufacturer
- Prolific
- Version
- 3.4.67.325
- Release date
- Aug 15, 2014
- Windows
- Windows XPWindows VistaWindows 7Windows 8Windows 8.1
- Architecture
- 32-bit & 64-bit
- Size
- 4 MB
- Hardware IDs
- 2 supported (see list)
- Category
- Chipset › Prolific
Download
PL2303_Prolific_DriverInstaller_v1_10_0_20140925.zip
How to install
- Check that this is the right driver. Open Device Manager (right-click the Start button), right-click your device, choose Properties and look at "Hardware Ids" on the Details tab. The value should match one of the supported IDs below (more about hardware IDs).
- Extract it to a folder. If the folder contains
setup.exeorinstall.exe, run it as administrator. - If there is no installer, right-click the device in Device Manager, choose Update driver, then "Browse my computer for drivers", select the extracted folder (leave "Include subfolders" ticked) and click Next.
- Restart the computer and check that the device no longer shows a yellow warning sign in Device Manager.
This driver was released for Windows XP–8.1. On Windows 10 and 11 it may refuse to install, or Memory integrity (Windows Security, Device security, Core isolation) may block it. If a newer version is listed under other drivers for this hardware, use that one instead.
Supported hardware IDs
This driver package declares support for 2 device IDs. Open an ID to see every driver available for that device.
| Hardware ID | Device |
|---|---|
| USB\VID_067B&PID_2303 | Prolific Technology, Inc. PL2303 Serial Port |
| USB\VID_067B&PID_2304 | Profilic USB-to-GPIO/PWM Port |
Other drivers for this hardware
| Driver | Version | Date | Windows |
|---|---|---|---|
| Prolific PL2303 USB-to-Serial Driver | 3.9.6.0 | Jun 17, 2024 | Windows 11 |
| Prolific PL2303 USB-to-Serial Driver | 3.8.43.0 | May 29, 2024 | Windows 10, 11 |
| Prolific USB-to-Serial Comm Port (COM3) Driver | 3.9.1.0, 3.8.41.0, 5.1.3.0 | Nov 11, 2021 | Windows 10, 11 |
| Prolific PL2303 USB to UART RS232 Serial Driver | 3.8.25.0, 3.8.18.0 | Jul 12, 2018 | Windows XP, Vista, 7, 8.1, 10 |
| Prolific USB-to-Serial Comm Port (COM3) Driver | 3.8.18.0, 3.8.12.0 | Oct 17, 2017 | Windows XP, 7, 8, 8.1, 10 |
| USB RS232 Drivers | 3.8.25.0, 3.8.12.0 | Mar 3, 2017 | Windows XP–10 |
| Prolific USB-to-Serial Comm Port | 3.6.78.350 | Jun 5, 2015 | Windows XP–10 |
| ArkMicro RS323 USB Data Cable Drivers | 1.8.0.0, 1.9.0.0, 2.0.0.3 | Mar 10, 2006 | Windows XP–7 |