Ensuring your Prolific USB-Serial controller operates correctly is crucial for seamless communication between your computer and serial devices. Whether you’re involved in automotive diagnostics, embedded systems programming, or utilizing serial communication for various applications, having the right driver is essential. This guide provides you with the latest Prolific Usb-serial Controller Drivers, compatibility information, and important notices to ensure a smooth and reliable connection.
Latest Driver Downloads for Windows
Prolific offers comprehensive driver support for various Windows operating systems, ensuring compatibility and optimal performance for your USB-Serial controller. Below are the latest driver versions available for download:
Windows 11 Drivers
For users running Windows 11, Prolific provides WHQL certified drivers for both 64-bit systems. These drivers are compatible with a range of PL2303 chip versions, including HXD, SA, RA GC, GS, GT, GL, GE, GD, and GR.
- Latest WHQL Driver Versions:
- v3.9.6.0 (Released: 06/17/2024)
- v5.2.7.0 (Released: 06/07/2024)
These drivers are automatically downloadable via Windows Update on Windows 11, ensuring you always have access to the most current version.
Windows 7/8.1/10 Drivers
Users on Windows 7, 8.1, and 10 (both 32-bit and 64-bit) can utilize these WHQL certified drivers. These drivers also support a broad spectrum of PL2303 chip versions, such as HXD, SA, TA, TB, RA GC, GS, GT, GL, GE, GD, and GR.
- Latest WHQL Driver Versions:
- v3.8.43.0 (Released: 05/29/2024)
- v5.1.7.0 (Released: 05/28/2024)
Similar to Windows 11, these drivers are also available through Windows Update for Windows 7, 8.1, and 10, simplifying the driver installation and update process. These drivers are compatible with a wide range of Windows 10 versions, from the initial TH1 1507 release up to the latest 22H2 version. They also offer compatibility with Windows Server editions, including 2016, 2008, 2008R2, 2012, 2012R2, 2019, and 2022.
| [File Name | Release Date | Version | File Size](<>) |
|---|---|---|---|
| PL23XX_Prolific_DriverInstaller_v4300.zip | 2024/01/05 | 4.3.0.0 | 14185.12KB |
Download Driver Setup Program:
For specific needs, Prolific provides DCHU (Declarative, Componentized, Hardware Support Apps) driver packages tailored for PC vendors. These packages are available for both Windows 11 and Windows 10 RS3 or higher.
| Driver Installer | File | Installer Version | OS Support |
|---|---|---|---|
| DCHU (for PC Vendors) | Download file | N/A | Windows 11 or higher – PL2303G Driver: v5.2.7.2 (06/06/2024) – PL2303D Driver: v3.9.7.2 (06/12/2024) |
| DCHU (for PC Vendors) | Download file | N/A | Windows 10 RS3 or higher – PL2303G Driver: v5.1.3.2 (03/31/2022) – PL2303D Driver: v3.8.36.2 (03/15/2021) |
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Important Compatibility Notes
Please be aware of the following compatibility limitations regarding older PL-2303 chip versions:
- PL-2303HXA and PL-2303X (EOL): Windows 8, 8.1, and 10 are not supported on these End-Of-Life (EOL) chip versions.
- PL-2303HXA/ TA/TB/HXD/RA/SA/EA (EOL): Windows 11 and higher are not supported on these EOL chip versions.
To identify your chip version, Prolific offers a PL2303 CheckChipVersion tool program. This tool is compatible with Windows XP, Vista, and 7.
Download: PL2303 CheckChipVersion tool program
It’s also important to note that driver technical support for Windows Vista, XP, 2000, 98, and Windows ME has been discontinued. Prolific recommends utilizing the PL-2303GC chip for new applications due to its enhanced compatibility and ongoing support.
Warning: Counterfeit PL-2303 Chips
Prolific has issued a warning regarding counterfeit PL-2303HX (Chip Rev A) USB to Serial Controller ICs circulating in the market, particularly from China. These counterfeit chips often bear Prolific’s trademark and branding, and utilize Prolific device drivers, making them appear genuine. However, these fake ICs are typically of inferior quality and can lead to Windows driver compatibility problems, often manifesting as a “Yellow Mark Error Code 10” in Device Manager.
Using counterfeit products is illegal and punishable under trademark, copyright, and intellectual property laws. Prolific actively combats the distribution of counterfeit products and prohibits the unauthorized distribution of PL-2303 drivers.
To avoid issues and ensure product authenticity, Prolific advises end-users to purchase vendor-branded cable products from reputable companies that provide contact information for service and support. Prolific does not sell cables under its own brand. If you suspect you have a counterfeit chip, contact Prolific with vendor details for verification.
Prolific recommends purchasing cables from trusted brands such as:
Product: AP1103 (AP1100) USB Serial Converter
By downloading and installing the correct drivers and being vigilant about counterfeit products, you can ensure reliable operation of your Prolific USB-Serial controller for all your serial communication needs. For further support and additional downloads, you can log in to the Prolific support webpage using the guest account:
Prolific Support Webpage
Account: GUEST
Password: GUEST
