USB 3.0 TYPE-A MALE TO A MALE: This connecter is designed to convert Super Speed USB 3.0 A female cable connector to USB 3.0 A male connector. USB 3.0 MALE TO FEMALE: Extend a usb port for your usb device, to prevent the original port of your computer from being unstable due to multiple uses, it can also be used to extend the length of 2 short USB cables.
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