Connect a usb 30 micro usb external hard drive to your computer startechcoms 3ft black superspeed usb 30 cable a micro b male male offers a durable high quality connection that harnesses the full capability of the usb 30 standard designed for next generation superspeed usb device connections the 3ft usb 30 cable offers a throughput of up to 5gbps when used with a usb 30 host and device an astounding 10x the capability of usb 20 480mbps the 3ft usb 30 cable features