Guide · Compatibility

Finding your Mac's model number (A####)

It's the little code that changes everything: A1502, A2338, A2141… This Apple model number is the key to ordering the right part the first time. Here's where to find it in 30 seconds, how to read it, and why it matters more than the year or the marketing name.

Place du Mac Practical guide July 4, 2026 5 min read
The essentials

Two Macs that look alike — same size, same year — can have incompatible parts. The only reliable marker is the Apple model number in the form of an A followed by 4 digits (e.g. A2338). You'll find it engraved under the Mac or in macOS. With this code, you choose a screen, battery, keyboard or SSD with no risk of error. Remember it: it's your parts ID card.

Where to find it

Three ways to read your model number

The fastest depends on whether your Mac still turns on. All of them give the same A#### code.

Method1

Under the Mac (the safest)

Turn your MacBook over: in tiny print near the hinge, you'll read "Model No. A####". On an iMac or Mac mini, it's under the base or on the back. This marking doesn't depend on the state of the Mac — it works even when it's off.

Tip: take a photo, the text is fine.
Method2

In macOS (if the Mac turns on)

 > About This Mac menu. There you'll see the name and the year; for the A####, open System Report > Hardware or look up your serial number on Apple's website. The marketing name alone ("MacBook Pro 13" 2020") isn't always enough: a single year can hide two models.

Method3

On the box or original invoice

The label on the original packaging shows the model and the serial number. Handy if the Mac is off and the engraving has worn away.

Reading the code correctly

How to decode your A####

The format is always the same: the letter A followed by 4 digits. A few pointers so you don't get it wrong:

POINTER 01
"A" then 4 digits
E.g. A2338. It's neither the serial number (12 characters) nor the EMC.
POINTER 02
One A#### = several years
A single model can span 2–3 years: compatibility is based on the A####, not just the year.
POINTER 03
The EMC refines it
Sometimes a single A#### chassis hides two variants: the "EMC ####" engraved right next to it clears up the doubt.
What it unlocks

With your A####, find the right part

On the site

Every listing shows the compatible models

Our product pages precisely indicate the compatible A#### (and EMC), in a table:

  • Type your A#### into the site search
  • Check the compatibility table on the listing
  • Choose the condition: new or grade A/B/C

Parts by model →

If in doubt

We confirm it for you

A worn-off number, two possible variants, a doubt about the EMC? Send us:

  • The A#### and the EMC if you have them
  • Failing that, your serial number
  • We confirm the exact reference before your purchase

Contact us →

Misconception
✗ False
"I know my Mac's year, that's enough to order."

Not always. Within a single year, Apple has sometimes released two models with different parts (processors, connectors, panels). Relying on the A#### — and on the EMC when in doubt — avoids the return and the wasted time. It's two minutes that guarantee you the right part.

Key takeaway
If you only remember one thing

The A#### is your Mac's ID card.

Turn the Mac over, note the "Model No. A####", and keep it handy. With this code, every part on the site tells you clearly whether it's made for your machine — and if in doubt, we confirm before you order.

Frequently asked questions

Model number: your questions

Where is the model number on a MacBook?

Turn the MacBook over: it's engraved in small print near the hinge, in the form "Model No. A####". It stays legible even if the Mac no longer turns on.

What's the difference between the model number, the serial number and the EMC?

The model number (A####) identifies the model and is used for part compatibility. The serial number (12 characters) identifies your specific unit. The EMC (EMC ####) refines things when a single A#### chassis hides two variants.

My Mac no longer turns on, how do I find the model?

Use the engraving under the Mac (it doesn't depend on power) or the label on the original box. Failing that, the serial number lets you find the model.

Isn't the name "MacBook Pro 13-inch 2020" enough?

Not always: a single year can group together two models (for example two MacBook Pro 13" 2020 with different parts). The A#### removes the ambiguity.

How do I use the A#### to find my part?

Type your A#### into the site search: each product page displays a table of compatible models. Check that your A#### is listed, then choose the condition (new or grade A/B/C).

I'm not sure of my model, can you help me?

Yes: send us the A#### and the EMC, or failing that your serial number, and we'll confirm the exact reference of the part before your order.

Place du Mac guide — compatible parts by model number, compatibility table on every listing, 2-year warranty, workshop at 51 rue du Faubourg Poissonnière, Paris 9th. Apple, Mac and MacBook are trademarks of Apple Inc.; Place du Mac is an independent repairer, not affiliated with Apple Inc.

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