What is PCI Serial Controller Windows Driver?
A PCI Serial Controller is a hardware component typically found in computers that allows communication between the system and serial devices (like RS-232 ports, modems, or other serial communication devices) via the PCI (Peripheral Component Interconnect) bus. The driver for the PCI Serial Controller is software that enables Windows to interact with this hardware.
serial ports (COM ports) or for serial communication expansion cards that provide additional serial ports to the system. These types of devices are often used in legacy applications, industrial equipment, or specialized hardware that relies on serial communication protocols.
When you see a PCI Serial Controller listed in your Device Manager with a yellow exclamation mark, it usually means that the appropriate driver for the device is missing or not correctly installed.