A USB-A to Micro USB cable is a type of cable that features a USB connector with a flat rectangular shape, which is known as the "USB Type-A" connector. It is one of the most common types of USB cables and is often used to connect a wide variety of peripheral devices to a computer or charger. These USB A to Micro-USB cables are used for charging smartphones, tablets, and other electronic devices, as well as for transferring data between devices, such as transferring files from a computer to a USB flash drive.