NDS SMS4 FINAL SPEC: New generation design, more faster and stable; High speed USB Plug and Play, driver free; 6X speed up, backup 512M ROM just need 7 minutes; Support more special NDS game cart and save type; Support NDS game save data backup / restore; Support NDS ROM/Firmeare backup to PC; Support MK6/R6 firmware update; Built-in 2 color indication LED