Click Next and follow the prompt to complete the installation.
Select the correct model (e.g., “MosChip 4S/8S Serial Card”) and click Next .
| 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 |
Used to support devices like older dot-matrix printers or diagnostic equipment that require a dedicated parallel or serial interface. Specific PC Models: Historical association with systems like the Sony PCV-RS502 Driver Installation & Troubleshooting pci 60806a driver
If you want, provide the output of lspci -nn (Linux) or the Hardware Ids string (Windows) and I will identify the exact device and suggest the specific driver and install steps.
driver package, which usually supports these PCI serial/parallel cards. Manual Installation Device Manager (right-click the Start button and select it).
The 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. Click Next and follow the prompt to complete
: Look for an entry with a yellow exclamation mark labeled "PCI Serial Port" or "Universal PCI Serial Controller". Update Driver : Right-click the device and select Update driver Browse my computer for drivers Point to the Driver Folder
Right-click the "PCI Serial Port" or "PCI Simple Communications Controller" with the yellow exclamation mark. Update driver Browse my computer for drivers
With renewed energy, John applied the newfound knowledge and began rewriting the driver from scratch. The hours ticked by, and as the first light of dawn crept into the office, John's screen flickered to life. The system was online, and the machinery was humming once more. Search for “MCS9865 driver” first.
If the driver is very old (Windows Vista/7 era), you may need to right-click the Setup.exe file, go to Properties > Compatibility , and run it in compatibility mode for an older version of Windows.
The most reliable source for this specific card is the manufacturer of the chipset:
Ignore the “Windows can’t verify the publisher” warning. Click Install this driver software anyway .
Here is everything you need to know about identifying, downloading, and installing this driver. What is the PCI 60806A?
Yes, in almost all cases. Search for “MCS9865 driver” first.