The SAM4s SPS-520RT I/O Board is one of the most important components of this mode cash register. The I/O board controls the other components like the printers, auto cutter and the display etc.
While we have had end-users replace this board it is an advanced repair. If you are unsure about completing this repair you should consider having us repair your machine. Contact us at 800-863-2274 to discuss your options.