The CH382 chipset is a native PCIe-to-serial/parallel controller, which reduces CPU load by up to 48% compared to older "bridge chip" designs. PCIe x1 (compatible with x4, x8, and x16 slots).
Right-click the downloaded ZIP folder and select Extract All . CH38XDRV
Look under "Other devices" for "PCI Serial Port." Update Driver: Right-click the device and select Update driver . Choose "Browse my computer for driver software" .
Fully compatible with 16C550/16C750 UART standards. Step-by-Step Installation Guide for Windows 10
Press Windows Key + X and select Device Manager .
For StarTech branded cards, download from their Support Portal . Technical Specifications
If your card is showing up as a "PCI Serial Port" with a yellow exclamation mark in , follow these steps:
If you have a pre-built Dell tower, use the Dell PCIe Serial Card Driver .
Supports high-speed transmission up to 8Mbps (or 16Mbps depending on the specific model).
CH38XDRV.EXE (Nanjing Qinheng Microelectronics) — Supports 32/64-bit Windows 10 and 11.
The CH382 chipset is a native PCIe-to-serial/parallel controller, which reduces CPU load by up to 48% compared to older "bridge chip" designs. PCIe x1 (compatible with x4, x8, and x16 slots).
Right-click the downloaded ZIP folder and select Extract All .
Look under "Other devices" for "PCI Serial Port." Update Driver: Right-click the device and select Update driver . Choose "Browse my computer for driver software" .
Fully compatible with 16C550/16C750 UART standards. Step-by-Step Installation Guide for Windows 10
Press Windows Key + X and select Device Manager .
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