Flip your MacBook over. The serial number is printed in tiny text near the regulatory markings.
If you still have the original packaging, the serial number is on the barcode label. how to see your macbooks year
Can you install the latest software update? Trade-in Value: How much is the laptop worth today? Flip your MacBook over
If you need deeper technical details or the year isn't immediately visible, use the System Report. Open . Click More Info... (or System Report on older versions). Look for the Model Identifier (e.g., MacBookPro18,3). how to see your macbooks year