To find the model and specifications of your MacBook, go to "System Preferences" > "About This Mac," where you'll see details such as the model, processor, memory, storage capacity, and macOS version. Alternatively, you can check the model number on the bottom of the MacBook or on the original retail box if you still have it. You can also confirm the model and specifications by visiting the Apple Care Coverage page, logging in with your Apple ID, and entering your MacBook’s serial number. This will show you the details registered with your device.