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PL2303GD USB CDC to Serial Bridge Controller

  • Full Compliant with USB Specification v2.0 (Full Speed)
  • On chip USB 1.1 tr ansceiver and 5V to 3.3V regulator
  • On chip 96MHz Clock Generator
  • Supports OTPROM (One Time Programmable ROM) for USB device descriptors. OTPROM can be programmed directly through USB port.
  • 1024 byte bi directional data buffers (768 byte receive/256 byte tr ansmit)
  • Each IC has unique ID(for Serial Number)
  • USB CDC driver and SDK:
      -Built in USB-CDC driver on Win10 Mac OS X 10.7, Linux3.8, Android3.2 or above
      -Provides USB CDC to UARTSDK for Mac OS X, Linux, and Android and SDK of virtual-com-port for Windows.
  • Supports Battery Charger ( detection to enable fast charging of batteries.
  • Package: SSOP16
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Description

The PL2303GD is a full-featured single chip USB-CDC to UART bridge controller for connecting a full-duplex UART asynchronous serial interface device to any Universal Serial Bus (USB) capable host. The PL2303GD implements the standard USB CDC Device which is natively supported in most of operating systems; so the PL2303GD does not need any custom driver installation. The operating system or USB host communicates with the PL2303GD through USB CDC application software developed based on Windows/Ma c/Linux DLL libraries provided by Prolific.

USB-CDC device is natively supported in most of operating systems such as Mac OS X 10.7, Linux3.8, Android3.2and their later version. Prolific provides SDK for customers to develop their application software. Refer to instruction of PL2303GDSDK on how to control PL2303GD GPIO using the API in SDK.

Windows Driver Installer Setup Program ( Win7 / Win8.1 / Win10 / Win11)

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Installer version & Build date: 4.9.0.0 (2026-03-06)
Win11(64-bit) WDF WHQL Driver
– PL2303G: v5.2.11.0 (01/22/2026)
– PL2303HXD:v3.9.7.0 (12/30/2025)
(For PL2303 HXD, SA, RA GC, GS, GT, GL, GE , GD, GR versions
– Windows 11 Certified WHQL Driver ( 21H1, 22H2, 23H2, 24H2, 25H2 versions)
– Auto-download driver via Windows Update (Windows 11)
Windows 7/8.1/10 (32&64-bit) WDF WHQL Driver
– PL2303G: v5.1.11.0 (01/21/2026)
– PL2303HXD: v3.8.43.0 (05/29/2024)
(For PL2303 HXD, SA, RA, GC, GS, GT, GL, GE , GD, GR versions)
– Windows 10 Certified WHQL Driver (TH1 1507, TH2 1511, RS1 1607, RS2 1703, RS3 1709, RS4 1803,RS5 1809,19H1 1903, 19H2 1909, 20H1 VB, 21H1, 22 H1versions)
– Windows 7, 8.1 Certified WHQL Driver
– Compatible with Windows Server 2008, 2008R2, 2012, 2012R2, 2016, 2019 , 2022
– Auto-download driver via Windows Update (Windows 7, 8.1, 10)
– Installer Language Support: English (default),
– For Prolific USB VID_067B&PID_2303, PID_2304, PID_23A3, PID_23B3, PID_23C3,PID_23D3,PID_23E3,PID_23F3,PID_2323.
– Includes Certification Report, User Manual, Driver Release Notes, CheckChipVersion Tool
– Installer supports silent install (add “/s” parameter when running program)

MAC OS Driver

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This resource is for PL2303GD USB CDC to Serial Bridge Controller. Click download to view the document.

Linux Driver

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File Name Release Date Version File Size
PL2303G_Linux_Driver_v1.0.7.zip 2023/10/02 v1.0.7 485.39KB
Linux Kernel 5.5 and above already includes built-in drivers for PL2303G Chip.
If you's Linux kernel is v2.6.15 ~v5.4, Please update the PL2303G Linux driver via PL2303G_Linux_Driver_v1.0.7.zip

Android Driver

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PL2303G Android USB Host API SDK v1.0.0.10
Requirements:
———————
– USB Device with PL2303GC, PL2303GS, PL2303GT, PL2303GL, PL2303GE, PL2303GR, PL2303GD, PL2303GT-2AB controller chip
– Android-Powered Device (Tablet/Phones) with USB Host Mode Support
– Android 3.2 and above OS versions
SDK Package includes following:
———————————————————–
1. PL2303 Sample Test Android App Software
– Single port (PL2303GSimpleTest.apk)
– GPIO A Control (PL2303G_GPIO_A_Test.apk)
– GPIO B Control (PL2303G_GPIO_B_Test.apk)
– Multi-port (PL2303G_MultiSimpleTest.apk)
2. PL2303G Android Demo Apps User’s Manual
3. PL2303G Android Sample App Source Code
4. PL2303G Android Java Driver Library
5. PL2303G Android App Development Reference Documents
User can download PL2303G app on Google Play.
https://play.google.com/store/apps/dev?id=5801101758672272902

PL2303GD Data Sheet

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PL2303GD Data Sheet

Windows DCHU+DFx+Modem Standy Driver INF Setup ( Win10 / Win11)

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Windows 11 ( 64-bit ) WDF WHQL Driver: v5.2.10.2 (11/06/2025)
Windows 10 ( 32 / 64 bit ) WDF WHQL Driver: v5.1.10.2 (11/03/2025)
(For PL2303 GC, GS, GT, GL, GE , GD, GR versions)
– Windows 11 Certified WHQL Driver ( 25H2 versions)
– Windows 11 Certified WHQL Driver ( 24H2 versions)
– Windows 11 Certified WHQL Driver ( 21H2 versions)
– Windows 10 Certified WHQL Driver ( 2004 versions)
– Windows 10 Certified WHQL Driver ( 1903 versions)
– Windows 10 Certified WHQL Driver ( 1809 versions)
– Auto-download driver via Windows Update (Windows 11)
DCHU: https://learn.microsoft.com/en-us/windows-hardware/drivers/develop/dch-example
Directed PoFx (DFx): https://learn.microsoft.com/en-us/windows-hardware/drivers/kernel/introduction-to-the-directed-power-management-framework
Modem Standy: https://learn.microsoft.com/en-us/windows-hardware/design/device-experiences/modern-standby

Windows ARM64 Driver Installer Setup Program ( Win10 / Win11)

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Installer version & Build date: 6.5.0.0 (2026-02-06)
PL2303G ARM : WDF WHQL Driver: v5.3.11.0 (01/28/2026)
(For PL2303 GC, GS, GT, GL, GE , GD, GR versions)
– Driver Certified for Windows 11 25H2 ARM (version 25H2 ARM)
– Auto-download driver via Windows Update (Windows 11)
– Installer Language Support: English (default),
– For Prolific USB VID_067B&PID_23A3, PID_23B3, PID_23C3,PID_23D3,PID_23E3,PID_23F3,PID_2323.
– Includes Certification Report, User Manual, Driver Release Notes
– Installer supports silent install (add “/s” parameter when running program)

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