What is This?USB Male to Female Extension cable is widely used for LED Desk Lamp, LED Strip, USB Fan and other low-power electrical devices.What will I get?Material: Plastic, Copper WireColor: BlackConnect Type: USB Male to FemaleCord Type: 24AWGCable Length: 50cm / 19.69inchVoltage: 5VMaximum Working Current: 2APackage Content: 2 x USB Cable with SwitchIs there any advantages of the product?No need to pull the USB cable to restart your device, just press the switch button to turn it on and off.What should I notice?This cable is only for power supply, not for data transfer use.