The official driver for the chipset (PCI Express to Dual Serial and Parallel Port) is the CH38XDRV package . This driver is developed by Nanjing Qinheng Microelectronics (WCH) and supports both the serial and parallel port functions of the CH382, CH382L, and CH384 chips. ⬇️ Driver Download & Official Links Official Windows Driver (EXE): CH38XDRV.EXE (WCH-IC) Size: ~5.85 MB Version: 1.5 (or latest available)
Wrong parallel mode (EPP/ECP vs SPP).
Up to 1.5 MB/s for parallel and up to 8 Mbps for serial. wch ch382l parallel port driver download
For the most reliable performance, download the official package directly from the manufacturer. This unified installer supports both CH382 and CH384 chipsets. The official driver for the chipset (PCI Express