A USB to Micro USB cable is a type of cable that has a standard USB-A or USB-C connector on one end (the larger end) and a Micro USB connector on the other end (the smaller end). This cable is commonly used for charging and data transfer between devices such as:

• Smartphones and tablets (especially older models)
• Bluetooth speakers
• Headphones
• Portable chargers/power banks
• Cameras
• Other small electronics

Types of USB to Micro USB cables:

1. USB-A to Micro USB: This is the most common type. The USB-A connector typically connects to a power source (like a computer, wall adapter, or power bank), and the Micro USB connects to the device.
2. USB-C to Micro USB: This is a less common variant where one end is a USB-C connector (found on newer laptops, smartphones, and devices), and the other end is a Micro USB. This allows you to use newer devices to charge older ones.

Micro USB cables are being phased out in favor of USB-C cables, which offer faster charging and data transfer speeds, but they are still widely used for older devices.