The sat2510bpu33 usb 30 hard drive enclosure with uasp lets you connect a 25 inch sata iii hard drive hdd or solid state drive ssd through an available usb port the enclosure delivers optimal performance with a usb 30 connection but is backward comp enhanced with uasp usb attached scsi protocol this 25 sata iii enclosure performs up to 70 faster than conventional usb 30 when paired with a uasp enabled host controller using a more efficient protocol than the traditional usb bot bulk only t