Wch Ch382l Parallel Port Driver Download (2027)

Solution: Temporarily disable driver signature enforcement.

Alternatively, use the WCH driver version 3.8 or newer, which includes Microsoft WHQL signing.

Yes. While Windows 10 and 11 have inbox drivers for very basic parallel port chips (like the legacy 8255), the CH382L uses a proprietary PCIe bridge. Without the correct driver, Device Manager will show:

The driver translates PCIe transactions into legacy I/O port reads/writes (typically at addresses like 0x378, 0x278, or 0x3BC).

Before downloading, it is critical to understand what hardware you actually have. The CH382L is a PCIe-to-Interface chip manufactured by Nanjing Qinheng Microelectronics (WCH).

It is a "Combo" chip, meaning it usually provides:

The Confusion: Most modern operating systems (Windows 10/11) will detect the card when you plug it in. However, they often default to the Microsoft Serial Driver or a generic driver. This enables the Serial ports but leaves the Parallel Port non-functional.

If your Parallel Port is showing up as a "PCI Device" with a yellow exclamation mark, or not showing up at all, you are missing the specific WCH Parallel driver.

Cause: The assigned LPT address is non-standard.

Fix:

download the official drivers for the WCH CH382L chipset directly from Nanjing Qinheng Microelectronics (WCH)

. This driver package supports various PCIe configurations, including dual serial ports and the single parallel port frequently used for printers and industrial hardware Nanjing Qinheng Microelectronics Co., Ltd. Official Download Links Windows (Self-extracting Executable): CH38XDRV.EXE Nanjing Qinheng Microelectronics Co., Ltd. Windows (ZIP Archive): CH38XDRV.ZIP

— Includes the driver package and an EEPROM configuration tool Nanjing Qinheng Microelectronics Co., Ltd. Linux Drivers: Available on the WCHSoftGroup GitHub for manual installation via terminal Device Specifications Compatibility:

Supports Windows 11/10/8.1/8/7 (32/64-bit), legacy versions like XP/98, and Windows Server up to 2022 Nanjing Qinheng Microelectronics Co., Ltd. Performance: The chipset supports a data transfer rate of up to for parallel ports and is fully compliant with PCIe Rev 1.1 Functionality: Often used in "plug-and-play" cards like those from AddOnCards , providing IEEE1284 parallel port expansion Installation Tips PCI-E Parallel Card Problem - Page 3 - LinuxCNC Forum

The WCH CH382L is a native PCI Express single-chip solution used to add parallel (LPT) and serial (COM) ports to modern computers. Whether you are setting up a legacy printer, a CNC machine, or an industrial scanner, having the correct driver is essential for communication between your OS and the hardware. Official Driver Download wch ch382l parallel port driver download

For most Windows and Linux users, the official driver package from the manufacturer, Nanjing Qinheng Microelectronics (WCH), is the safest and most reliable source. Download Link: CH38XDRV.EXE (Official WCH Site) Version: 1.5 (or latest available) File Size: ~5.85 MB Supported Systems:

Windows: 11, 10, 8.1, 8, 7, Vista, XP, and Server versions (2003–2022) in both 32-bit and 64-bit architectures.

Linux: Supported natively in newer kernels (4.15+), though a separate driver is available for older versions. Installation Guide for Windows

Preparation: Plug your PCIe card into an available slot on the motherboard before booting.

Run the Installer: Download and launch CH38XDRV.EXE. Click Install to automatically register the driver. Manual Update (if needed): Open Device Manager (right-click Start > Device Manager).

Look for "PCI Parallel Port" with a yellow exclamation mark.

Right-click it, select Update driver, and point it to the folder where you extracted the WCH files.

Verification: Once installed, your parallel port should appear under Ports (COM & LPT) as "WCH PCI Express => Parallel Port (LPT1)". Linux Configuration CH38XDRV.EXE - Nanjing Qinheng Microelectronics Co., Ltd.

The official driver for the WCH CH382L (a PCI-Express to dual serial and parallel port chip) is the CH38XDRV.EXE

, available from the manufacturer, Nanjing Qinheng Microelectronics. This package includes the Windows driver and an EEPROM configuration tool. Official Download Link CH38XDRV.EXE (v1.5)

: Official site for the CH382/CH384 driver installation package. Supported Operating Systems The driver supports a wide range of platforms, including: Windows (32/64-bit)

: Windows 11, 10, 8.1, 8, 7, Vista, XP, and older versions like 2000, ME, 98, and NT 4.0. Windows Server : Server 2022, 2019, 2016, 2012, 2008, and 2003.

: Supported via the Linux Kernel (native support is often included in versions 4.15 or above). Driver Features & Specifications Multi-Function Support

: The driver handles various configurations, including PCIe to dual UARTs (serial), PCIe to printer/parallel port, and combinations such as 2S1P (2 serial and 1 parallel). Hardware Capabilities Solution: Temporarily disable driver signature enforcement

: Supports high-speed serial rates up to 8Mbps and parallel port modes including SPP, EPP, and ECP. Certifications

: The drivers are Microsoft WHQL Certified, ensuring stability and compatibility for modern Windows environments. Installation Guide : Obtain the CH38XDRV.EXE Run Installer

: Launch the executable. It is a "one-key installation" tool that typically automates the process. Device Manager

on Windows. Look for "Ports (COM & LPT)" to see the newly added LPT or COM ports. Troubleshooting

: If the device is not recognized, ensure the card is seated correctly in the PCIe slot. For older DOS systems, WCH provides a configuration application to set specific I/O port addresses like 0x378 or 0x278. Technical Documentation

For hardware configuration and pinout details, you can download the CH382 Datasheet (PDF) specific address configuration for use with legacy software or LinuxCNC? CH38XDRV.EXE - Nanjing Qinheng Microelectronics Co., Ltd.

The WCH CH382L is a high-performance PCI-Express (PCIe) bus converter chip developed by Nanjing Qinheng Microelectronics. It is specifically designed to add high-speed parallel (LPT) and serial (COM) ports to modern desktop systems that lack native legacy ports. Official Driver Download

For the most reliable performance, download the official CH38XDRV.EXE package directly from the manufacturer. This unified installer supports both CH382 and CH384 chipsets.

Official Download Page: CH38XDRV.EXE - Nanjing Qinheng Microelectronics Alternative Link: CH38XDRV_EXE - wch.cn

Supported OS: Windows 11/10/8.1/8/7 (32/64-bit), Windows Server (2022 to 2003), and Linux.

Certifications: The driver is Microsoft WHQL Certified, ensuring compatibility and stability for Windows environments. Key Technical Specifications

The CH382L chipset facilitates high-speed data transmission by bridging the PCIe bus to legacy interfaces.

Bus Interface: Single-lane (x1) PCI-Express, fully compliant with PCIe Revision 1.1 with throughput up to 2.5 Gbps.

Parallel Port Modes: Supports SPP (Standard Parallel Port), PS/2, EPP (Enhanced Parallel Port), and ECP (Extended Capabilities Port). Alternatively, use the WCH driver version 3

Data Transfer Rate: Achieves parallel data transfer speeds up to 1.5 MByte/s.

Serial Capabilities: In "2S1P" mode, it also supports dual 16C550/16C750 compatible UARTs with independent 256-byte FIFO buffers and baud rates up to 8 Mbps. Installation and Hardware Configuration

The device ID for a single parallel port configuration is typically DID=3050H, while a dual serial plus single parallel configuration is DID=3250H. CH38XDRV.EXE - Nanjing Qinheng Microelectronics Co., Ltd.

To download and install the WCH CH382L parallel port driver, you should use the official driver package from the manufacturer, Nanjing Qinheng Microelectronics. This chip is commonly found on PCIe-to-Parallel (LPT) and multi-I/O adapter cards. 1. Download Official Driver

The primary driver for the CH382 series (including the CH382L) is the CH38XDRV.EXE

package. It is Microsoft WHQL certified and supports Windows 11, 10, 8.1, 7, and various Windows Server versions. Nanjing Qinheng Microelectronics Co., Ltd. Official Download Link: CH38XDRV.EXE at WCH-IC Alternative Support:

For older systems or specific configurations, you may also find resources on the WCH Tool Software page 2. Installation Guide (Windows)

Follow these steps to ensure the parallel port is correctly recognized: Hardware Prep:

Turn off your computer, insert the PCIe card into an available slot, and secure it. Run Installer: Launch the downloaded CH38XDRV.EXE

file. Follow the on-screen prompts to complete the installation. Manual Update (If needed): Device Manager devmgmt.msc , and hit Enter). Find the entry labeled PCI Serial Port PCI Parallel Port with a yellow exclamation mark. Right-click it, select Update Driver , and choose "Browse my computer for drivers"

Navigate to the folder where you extracted the WCH drivers and select the

After installation, a new entry should appear under "Ports (COM & LPT)" as WCH PCI Express Parallel Port (LPT) 3. Port Configuration Standard parallel cards often default to . If your software requires Right-click the port in Device Manager and select Properties Port Settings and change the LPT Port Number 4. Linux Support For Linux users, the CH382L is supported natively in Linux Kernel 4.15 and above

. Modern distributions like Ubuntu or Fedora typically recognize the card automatically. Do you need help configuring a specific device

, such as a printer or CNC machine, with this parallel port? CH38XDRV.EXE - Nanjing Qinheng Microelectronics Co., Ltd.

To download the driver for the WCH CH382L (a PCIe to LPT parallel port chip), you should go to the official manufacturer’s website.

Direct download source:
WCH.cn (Nanjing Qinheng Microelectronics)