Driver Windows 10 — Ch382ssp-1107

The CH382SSP-1107 driver for Windows 10 is the CH38XDRV.EXE package provided by Nanjing Qinheng Microelectronics (WCH). This driver supports the WCH CH382 chipset used in many PCI-Express (PCIe) serial (RS232) and parallel port expansion cards. Driver Download & Installation

Driver Version Requirements

• Windows 10 (32-bit & 64-bit) – Use version 3.7 or later (the latest as of 2025 is typically v3.9 or v4.0 for WCH chips).
• WHQL Certified – Look for drivers signed by Microsoft. Unsigned drivers may fail to install on newer Windows 10 builds (20H2+).

1. Always download from WCH or your card’s OEM.
2. Use Device Manager → Update driver with the extracted INF.
3. If you see “driver signature” errors, temporarily disable signature enforcement.
4. Assign a fixed COM port number above COM4 to avoid conflicts.

Download the Driver:

4. Identify the device’s actual USB VID/PID

1. Open Device Manager.
2. Find the unknown or malfunctioning device.
3. Right-click → Properties → Details → Hardware Ids.
4. Look for:
   USB\VID_XXXX&PID_YYYY

Troubleshooting