Check a MacBook Air serial.
Enter a MacBook Air serial and Macfax returns the exact model and year, including the randomized serials Apple has used since 2021 that character decoders can't read. The table below maps every Apple Silicon MacBook Air identifier if you have a Model ID instead.
Find the serial on a MacBook Air.
- On the chassis: engraved on the underside of the bottom case, in the small print near the regulatory text.
- On any Mac that boots: Apple menu → About This Mac shows the serial.
- Off the machine: the original box carries it on the barcode label, and it appears on the Apple invoice.
- Buying one? Ask for a photo of About This Mac and one of the underside, and check the two serials match.
Every Apple Silicon MacBook Air.
Have a Model ID instead of a serial (from About This Mac or a listing)? This table maps it. The serial lookup above returns the same answer from the serial alone.
| Model ID | Chip | Screen | Year |
|---|---|---|---|
| MacBookAir10,1 | M1 | 13" | 2020 |
| Mac14,2 | M2 | 13" | 2022 |
| Mac14,15 | M2 | 15" | 2023 |
| Mac15,12 | M3 | 13" | 2024 |
| Mac15,13 | M3 | 15" | 2024 |
| Mac16,12 | M4 | 13" | 2025 |
| Mac16,13 | M4 | 15" | 2025 |
What sellers are asking.
Across 3,729 live asking prices, MacBook Air listings run $580 to $949, typically $750. All configurations pooled; the per-configuration pages below carry the tighter bands.
What goes wrong with used MacBook Air deals.
The M1 Air and the M2-and-later redesign look alike in listing photos shot from above; the serial says which machine is actually for sale.
Activation Lock survives a wipe. Confirm it's off on the machine before paying — no serial service can read lock status.
Buying or selling a MacBook Air?
A serial names the model. A Macfax report proves the Mac in front of you is really that machine, in the condition claimed, hardware-signed and verifiable online.