To find the model and specifications of your Mac mini, go to "System Preferences" > "About This Mac," where you'll see details such as the model name, processor, memory, storage capacity, and macOS version. You can also check the model number on the bottom of the Mac mini or refer to the original retail packaging if you still have it. Alternatively, visit the manufacturer’s support page, log in with your account, and enter your Mac mini’s serial number to confirm the model and specifications.