Because modern motherboards no longer include native parallel ports, users must rely on expansion cards. Among the most popular and cost-effective chipsets used in these PCI and PCIe expansion cards is the by Nanjing Qinheng Microelectronics (WCH).
Fully compatible with SPP , EPP , PS/2 , and ECP modes. Compatibility: Adheres to the IEEE1284 printing protocol. Driver Download and OS Compatibility ch351q parallel port driver