USB Type-A. Also known as USB Standard-A, USB Type-A is the original design for the USB standard with a flat and rectangular shape. On a typical USB cable, the Type A connector, aka the A-male connector, is the end that goes into a host, such as a computer.SB Type-A. Also known as USB Standard-A, USB Type-A is the original design for the USB standard with a flat and rectangular shape. On a typical USB cable, the Type A connector, aka the A-male connector, is the end that goes into a host, such as a computer.