The blue 2-Port USB 3.0 A Female Slot Plate Adapter from StarTech allows you to add two USB 3.0 A female ports to the back of your computer. It converts the USB pins on the USB 3.0 motherboard header to two standard USB 3.0 A-type ports. The adapter can be mounted on the rear panel of a computer case, adding two USB 3.0 A female ports for simple connection to USB peripheral devices.
The USB 3.0 standard supports transfer rates of up to 5 Gbps and is backwards compatible with USB 2.0 (480 Mbps) and 1.1 (12 Mbps) devices.
