For laptops: The device model and serial number are usually printed on a label on the bottom of the device. Look for markings such as "Model", "Model No.", "Serial Number (S/N)", or "Product ID".
If the label is worn or missing, you can find this information in the BIOS/UEFI or within the operating system (e.g. System Information in Windows).
For desktop computers: The model may be printed on the case, listed on a label attached to the chassis, or available in system settings for prebuilt machines.
If you are unsure, you can upload a clear photo of the device or its label below, and we will identify it for you.