: If the site only provides the "standard period" (e.g., 2 years), add that duration to the purchase date on your invoice to find the exact expiration. Standard Warranty Coverage Levels
Locate the "Check Your Warranty Status" section and input your S/N. qnap warranty check by serial number
Open the Qfinder Pro utility on your computer; it will list the serial numbers for all QNAP devices on your local network. Steps to Check Warranty Status : If the site only provides the "standard period" (e