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This internal USB 3.0 20-pin header extension cable measures 1.64 feet long, designed to extend the motherboards built-in USB3 20Pin front panel header. It solves the problem of insufficient original cable length for large or customized PC chassis, allowing you to freely adjust the installation position of front USB ports. Adopting high-quality shielded wiring, it maintains complete USB3.0 high-speed transmission performance and effectively avoids signal loss and flicker caused by messy internal wiring. The precise molded 20Pin connectors ensure tight and stable plug-in without loose contact. No drivers or additional software are required, simply plug and play. Perfect for DIY PC assembly, gaming chassis modification, and upgrading front panel USB interfaces on all ATX, MATX and ITX motherboards.