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Aomoproing USB 3.0 Header Extension Cable is a practical DIY accessory designed to expand internal USB connectivity for desktop PCs. Featuring a 19/20 Pin 1 to 2 Y-shaped splitter design, it converts one motherboard USB 3.0 19/20 Pin header into two usable ports, solving the problem of insufficient internal USB ports for DIY PC assembly, upgrades, or peripheral connections. With a compact 5.9 inch (15cm) length, it fits seamlessly into PC case internal wiring, avoiding tangling and saving space for neat cable management. The cable supports USB 3.0 high-speed data transmission up to 5Gbps, delivering fast and stable transfer of files, images, and data, perfectly matching the performance of USB 3.0 devices. Designed with DIY users in mind, it adopts a plug-and-play design that requires no drivers, making installation quick and easy. Built with sturdy connectors and high-quality wire, it ensures durable, long-term use and reliable performance, making it an essential accessory for DIY computer builds and motherboard USB port expansion.