USB-A and USB-C are two very different types of connectors that are both based around the Universal Serial Bus protocol. USB-A and USB-C connectors cannot be cross mated as their physical dimensions are very different with USB-A connectors being rectangular in shape and USB-C being oval. They also run at very different speeds with USB-A using USB2.0 and USB3.0 protocols which have transfer speeds of 480Mb/s and 5Gb/s respectively, whereas USB-C uses USB3.1 protocol which has transfer speeds of up to 10Gb/s.