Last updated: October 2025 – Verified against Windows 11 23H2 and Ubuntu 24.04 LTS.
This article is for informational purposes. Always back up your data before installing legacy drivers.
The PCI 60806A refers to a chipset commonly found in low-cost PCI Parallel Adapter Cards. Finding a "useful paper" in the academic sense is difficult because this is legacy consumer hardware rather than a subject of recent research; however, technical documentation and driver archives are the most relevant resources. Technical Context & Drivers
The 60806A chip (often labeled as RC-302 or associated with MosChip) is used to add IEEE 1284 parallel ports to desktop computers.
Driver Archives: Since this hardware is legacy, many official manufacturer sites no longer host the files. A community-archived driver set is available on Google Code Archive. pci 60806a driver
Hardware Compatibility: These cards are frequently sold under various generic brands for connecting legacy printers or CNC machinery. Retail listings like those on Desertcart confirm the chip's use in RC-302 parallel adapter cards. Troubleshooting Tips
If you are struggling to get the driver working on modern operating systems:
Windows 10/11: These cards often require manual installation through "Device Manager" using the "Have Disk" method, as they are rarely recognized by Windows Update.
Linux: Most 60806A-based cards are supported natively by the parport_pc kernel module. You can check if it's detected by running lspci -v in the terminal. my-60806a-drivers - Google Code Last updated: October 2025 – Verified against Windows
The PCI 60806A is a generic PCI-to-Serial/Parallel card, usually employing WCH CH35X or CH38X series chips, that often appears as an "Unknown Device" in Windows. Drivers can be installed by downloading the CH35X series driver from the WCH manufacturer website, or by manually installing via Device Manager using identified Hardware IDs.
For direct access to the required WCH drivers, visit the WCH official website.
I searched for information on a “PCI 60806A driver,” but I was unable to find any verified references to that specific model number in major hardware databases, driver archives, or manufacturer listings (such as National Instruments, Advantech, ADLINK, or ICP DAS).
It appears the identifier “PCI 60806A” may be: This article is for informational purposes
| OS | Works? | Driver Required | 64-bit support | |----|--------|----------------|----------------| | Windows 11 | Yes (with legacy driver mode) | MosChip MCS9865 v3.3+ | Yes | | Windows 10 (22H2) | Yes | MCS9865 64bit INF | Yes | | Windows 8.1 | Yes | Same as Win10 | Yes | | Windows 7 SP1 | Yes | Official MosChip 1.1.8 | Yes | | Windows XP x64 | Yes | SUNIX or MosChip legacy | Rare | | Ubuntu 22.04+ | Yes | Built-in mpsc driver | Yes | | FreeBSD 13+ | Yes | puc(4) driver | Yes |
Note: The PCI 60806A is not compatible with non-x86 ARM systems (Raspberry Pi, etc.) without a PCI bridge, and UEFI boot does not affect the driver – only PCI enumeration.
The PCI 60806A is a legacy multi-port serial card, typically manufactured by brands like MosChip, MCS9865, or SUNIX. It allows a desktop computer to add up to 4, 6, or 8 additional RS-232 (serial) ports via a single PCI slot. These cards are essential in industrial automation, POS systems, legacy medical equipment, network device configuration, and embedded systems where serial communication is still critical.
However, the single biggest challenge users face is finding, installing, and troubleshooting the correct PCI 60806A driver. Because the card uses generic chipsets, Windows does not always automatically detect it, and the wrong driver can lead to Code 10, Code 28, or constant device dropouts.
This article provides a definitive guide to identifying, downloading, installing, and troubleshooting the PCI 60806A driver on Windows 10, Windows 11, Linux, and legacy OSes like Windows XP.
You might be seeing this error for a few common reasons: