0Y9001 Dell I/O Card Serial/PS2 for OptiPlex GX520

The 0Y9001 Dell I/O Card is a replacement expansion module designed specifically for the OptiPlex GX520 desktop system. It adds both serial (RS‑232) and PS/2 connectors, enabling connection of legacy peripherals such as keyboards, mice, and serial devices. Engineered to match Dell’s original specifications, the card fits the standard I/O slot of the GX520 chassis and integrates seamlessly with the system’s motherboard. This part is an OEM‑grade component, ensuring reliable performance and full compatibility with the intended Dell platform, making it suitable for maintenance, upgrades, or refurbishment projects.