APLIGO has the option under warranty to repair or replace a product with a like product. APLIGO classifies some replacement products as “R” stock (refurbished units). For better identification, we have marked them with an “R” after the part number. The serial number location is either on the bottom or back of the unit. The “R” stock meets new product specifications, looks ‘like’ new, is packaged in new boxes and – optionally – with the latest Software release pre-installed. The “R” stock may consist of new products previously used as sales demos, stock rotations, or repaired product. Any product used to replace a defective product carries the balance of the original product warranty. For example, if a 3-year warranted product is replaced after one year, the replacement product carries the balance of the two years of the remaining warranty.