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This professional PCI Express to PS/2 expansion card is designed to add dedicated PS/2 keyboard and mouse ports for desktop computers. It features independent SATA power interface to ensure steady power supply and smooth device operation. Adopts exclusive design without redundant USB ports, purely meets PS/2 peripheral usage demands. Stable chip solution brings sensitive signal transmission, no delay or disconnection during use. Simple installation, plug and play without complicated driver setup. Ideal choice for old-style PS2 keyboard mouse users, industrial control computers and office desktop equipment expansion.