Download Driver Dex Dp-19 -upd- May 2026

and look under "Ports (COM & LPT)." You should see two new entries listed as "WCH PCI Express" or "PCI Serial Port". Troubleshooting

: If Windows blocks the installation on Windows 10 or 11 due to "unsigned drivers," you may need to temporarily disable Driver Signature Enforcement Download Driver Dex Dp-19 -UPD-

: Power off your PC and insert the card into an available PCIe x1 (or higher) slot. Run Installer : Download and run the CH38XDRV.EXE file from the WCH Official Site Verification Device Manager and look under "Ports (COM & LPT)

or use the WHQL-certified version available on the WCH site. Nanjing Qinheng Microelectronics Co., Ltd. CH38XDRV.EXE - Nanjing Qinheng Microelectronics Co., Ltd. Download Driver Dex Dp-19 -UPD-