Epygi Technologies, LLC (‘Epygi’) warrants to the original end-user purchaser every Quadro and QX to be free from physical defects in material and workmanship under normal use for a period of one (1) year from the date of purchase (proof of purchase required) If Epygi receives notice of such defects, Epygi will, at its discretion, either repair or replace products that prove to be defective. Additional Years warranty can be stacked up to a total of three additional years for a total of 4 years.