Your SNID and serial number are located on a label on the back of your monitor. These numbers can be used online to help locate downloads and other resources for your product. They also help us correctly identify your product specifications and warranty, so please have them at hand when you contact us.
Acer SNID numbers are 11 or 12 digits and do not contain letters. Acer serial numbers are 22 alpha-numeric characters, and will always use zero and never the letter O.