the tusb9260 is an arm cortex m3 microcontroller based usb 3.0 to serial ata bridge. it provides the necessary hardware and firmware to implement a usb attached scsi protocol (uasp) compliant mass storage device suitable for bridging hard disk drives (hdd) solid state disk drives (ssd) optical drives and other compatible sata 1.5-gbps or sata 3.0-gbps devices to a usb 3.0 bus. in addition to uasp support the firmware implements the mass storage class bulk-only transport (bot) and usb human in-terface device (hid) interfaces.