The Service Tag is a 7-character code, and the Express Service Tag is a 10 to 11-digit code that is a numeric version of the Service Tag. Both codes will probably be located on the back of the computer case, but can also be located on the top or side of the system. Dell uses these product identifiers to access information about your device’s specific tech specs and warranty so that we can provide personalized support options.

Desktop computer systems include these model names: Dimension, Inspiron, Optiplex, XPS, Vostro, Alienware, and Precision Workstation.

Watch this video to learn how to find the Service Tag label on your Dell desktop
Find your Desktop or All-In-One Service Tag (Closed captions available in many languages)