usb c to usb adapter: [usb 3.0 superspeed] up to 5gbps data transfer speed fast usb c to usb adapter. usb c to usb adapter: [plug & play] otg adapter no additional driver/software needed simple thunderbolt 3 to usb adapter usb c female to usb male adapter:[fast charging] up to 3 amp of output current. fast charging usb type c female to usb a male adapter. usb c female to usb male adapter:[fast data transfer] standard usb 2.0 data transfer speed. up to 480 mbps data transfer. both: [1-year warranty] feel free to upgrade to the 3-year warranty by registering to the nonda usb-c adapter program.