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This 9-pin USB header splitter converts a single motherboard 9Pin USB male header into four female ports, greatly expanding internal USB connection options. It adopts pure copper wire core for stable USB 2.0 signal transmission, low loss and strong anti-interference. Simple plug-and-play operation without any driver required, easy to install inside computer case. Ideal for connecting front panel ports, cooling fans, RGB devices and other internal USB accessories to meet multi-device expansion needs.