Interface: Dual 9PIN to 4-port USB2.0. Input interface: USB2.0 9PIN. Note: One 9PIN corresponds to 2 USB ports, and the USB9PIN must be plugged in for normal operation. You can use this device to directly convert the 2 USB 9-pin interfaces on the board into 4 USB2.0 interfaces and install them in the idle PCI bracket position.
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