Add 2 usb 30 ports to a laptop through an expresscard slot the ecusb3s22 2 port expresscard usb 30 card adds 2 superspeed usb 30 ports to an expresscard enabled computer system using a 34mm form factor that will fit in both 34mm and 54mm slots along with ports mounted side by side for easy access enhanced with uasp support usb attached scsi protocol this usb 30 controller performs up to 70 faster than conventional usb 30 when paired with a uasp supported enclosure note uasp req