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This internal 9Pin USB header splitter hub expands one motherboard USB 2.0 9Pin header to two usable female ports, effectively solving the problem of insufficient internal USB interfaces for DIY PC builds. It maintains steady USB2.0 transmission speed to power and transfer data with RGB LED fans, liquid cooling modules, fan speed testers and case front USB panels. The miniature circuit board occupies minimal chassis space and comes with standard pin connectors for simple installation. High-quality solder joints prevent loose contact and signal interference during long-term operation. No complicated software installation required, just plug into the motherboard 9Pin header to instantly add extra internal USB ports, perfect for gaming rig modders, water cooling enthusiasts and mini ITX PC assembly.