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This 9Pin USB 2.0 header 1 to 2 extension cable acts as an internal port multiplier, expanding one motherboard 9Pin USB 2.0 header into two female ports for extra device access. It maintains stable USB 2.0 data signal with no interference or transmission loss, delivering reliable daily performance. Made with high-quality insulated wire and precision molded terminals, it ensures firm contact and prevents loose connection. Flexible cable design makes internal chassis wiring neat and easy to arrange. Perfect for desktop PC building, case front panel USB expansion, and motherboard peripheral DIY upgrades.