what is usb type a

USB Type A, also called USB-A, is the classic, widely recognized USB connector that has been around since the 1990s. It is a flat, rectangular-shaped connector that is only inserted one way, which makes it easy to identify. Internally, it has four pins for power and data transfer. USB Type A is commonly found on many devices such as computers, keyboards, mice, flash drives, and older phone chargers. Although it has evolved in data transfer speed capabilities over various USB versions (USB 1.1, 2.0, 3.0, 3.1, and 3.2), its physical design has remained consistent. It is largely used for basic data transfer and device charging but does not support newer features like fast charging found in newer USB-C connectors.