A progress bar zipped across the screen. “Device installed successfully. Please restart.”
The WCH CH382L is a widely used PCI-Express dual-serial and single-parallel port controller chip. Manufactured by Nanjing Qinheng Microelectronics (WCH), this hardware allows modern desktop computers to interface with legacy equipment like barcode scanners, receipt printers, programmable logic controllers (PLCs), and industrial machinery.
You should see two new entries, typically named or "PCI Serial Port (COMx)" . 5. Troubleshooting Common Driver Issues
Legacy industrial software often refuses to communicate with high-number ports like COM11 or COM12, which Windows automatically assigns based on availability. Open Device Manager and expand Ports (COM & LPT) . Right-click your CH382L Serial Port and choose Properties . Go to the Port Settings tab and click the Advanced button. Locate the COM Port Number dropdown menu.
As of 2025, the latest stable driver for Windows 10 is: wch ch382l driver windows 10
Driver FIFO settings too aggressive or incorrect baud rate base clock.
Users occasionally encounter a deployment block stating that a required entry is missing from the driver setup configuration file. This happens when legacy or unauthorized third-party .inf configurations are deployed. To fix this, always purge old directory variables and force re-installation using the WHQL-certified execution kit directly from Nanjing Qinheng Microelectronics. 2. Resource Allocation Conflicts
Open the extracted folder and locate the executable file, usually named CH38XDRV.EXE or SETUP.EXE . Right-click the file and choose . A small driver installation utility window will appear. Click the Install (or Driver Install ) button.
Sites like DriverGuide, Station-Drivers, or OEM support pages (from card manufacturers like StarTech, Syba, or IO Crest) also host CH382L drivers. While convenient, always scan downloaded files with Windows Defender or VirusTotal. Prefer signed drivers to avoid security risks. A progress bar zipped across the screen
: Supports Windows XP through Windows 11, including Server editions. Nanjing Qinheng Microelectronics Co., Ltd. Key Features of CH382L High Performance
If the device remains under "Other Devices" after running the installer, the hardware IDs might not match the driver file.
Elias exhaled, a long, shaky breath. He opened his terminal software and sent a test command to the board. On the other side of the shop, a relay clicked loudly— CLACK —and a row of floodlights snapped on, blinding him with brilliance.
Once installed, verify that the OS recognizes the device map correctly. Open and expand the following two categories: past the network adapters
Older CH382L drivers (pre-2019) lack a valid Microsoft digital signature for Windows 10 64-bit. To install them, temporarily disable driver signature enforcement:
He scrolled down past the keyboards and mice, past the network adapters, to the section marked "Ports (COM & LPT)."
On Windows 10, the chipset is usually recognized as a "PCI Simple Communications Controller" or "Serial Port" until the driver is installed. 2. Where to Download the WCH CH382L Driver