1YR 5X9 SUP EXTN XCHANGENOW 620 The XchangeNOW program is designed to offer the users of select Overland Storage product lines the advantage of receiving a warranty replacement product or part shipped within 2 business days after diagnosis of the problem and customer acceptance of the RMA terms and conditions. Free return shipping will be provided for the questionable unit that must be returned within 15 days of receipt of the replacement product or part.