USB 3.0 connector is designed to support 5Gbps bandwidth 'SuperSpeed' data transfer, whereas, lower data rate can be transmitted with backward compatibility to USB 2.0 ports. However, USB 3.0 Type A processes additional pins that are not in the USB 2.0 A Type.

Inheriting the same design to the A-Type connector used in USB 2.0 & USB 1.1 application, USB 3.0 A is also provides a 'downstream' connection that is designed for use only on host controllers and hubs. USB 2.0 A Female to Crimp Housing Cables.

Be aware that typical A-A cables are not intended for connection between two host computers or computer to hub. Though not that common, USB A male to A male cables are used by some implementers to make connections between two USB A style female port. As such, it is important to remember while purchasing USB cables it is safest to make sure at least one of the plugs is a USB A. This is because USB host will supply a 5V DC power on the VBUS pin. USB-A socket is designed to provide a 'downstream' connection intended for host controllers and hubs, rarely implemented as an 'upstream' connector on a peripheral device.

Also known as USB standard A connector, the USB A connector is primarily be used on host controllers in computers and hubs.

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