Apple MacBook Upgrade Guide (2026) — What You Can (and Can’t) Upgrade

Apple Silicon MacBooks — every MacBook Air M1 through M4, and every MacBook Pro with M3 or M4 — have a fundamental design constraint: the RAM and storage are soldered directly to the processor chip (the SoC). This means zero upgradability on memory and storage. This isn’t a mistake or a cost-cutting measure. It’s the architecture of unified memory, and it’s not changing.

But “no RAM upgrade” doesn’t mean “no upgrades at all.” If you own a MacBook, there are still meaningful things you can upgrade or swap: chargers, docks, external storage, and even external displays. And if you own one of the last few MacBooks with user-replaceable components (2012–2015 models), there are still pathways to extend their life.

This guide covers what’s actually upgradeable on every current and recent MacBook model, where to buy compatible parts, and an honest assessment of whether upgrading makes sense for your use case.

MacBook Compatibility at a Glance

Bottom line: Every MacBook from 2020 onward has no user-upgradeable RAM or SSD. Buy the storage and memory you need when you purchase. If you own a pre-2020 model, read the Legacy Upgradeable MacBooks section below.

MacBook Air (M1, M2, M3, M4)

MacBook Air M1 (2020–2022)

The entry-level M1 Air came with a hard-fought compromise: base model maxed out at 16GB unified memory. This wasn’t an intentional limitation. Apple simply hadn’t yet scaled M-series chips to higher memory configurations. If you bought an M1 Air in 2020 or 2021, you chose your RAM at purchase time and it’s permanent.

SSD: Also soldered and non-upgradeable. Base model came with 256GB; you could configure up to 2TB at purchase. Both are final.

Charger: USB-C only — no MagSafe on M1 Air. The default charger is 45W; some USB-C power adapters from iPad Pros or other laptops will work as long as they’re USB-C PD-capable and deliver at least 20W. Higher wattage chargers (65W, 96W) charge faster but aren’t essential for daily use. Buy USB-C chargers on Amazon.

Thunderbolt: M1 Air has Thunderbolt 3. Dock and external SSD compatibility is broad but watch for features that require TB4.

External displays: M1 Air supports one external display. If you need two monitors, you’ll need a docking solution that supports daisy-chaining or a DisplayLink dock.

MacBook Air M2 (2022–2023)

M2 Air raised the baseline: now maxes at 24GB unified memory. Still soldered, still final at purchase. SSD is also non-upgradeable, now up to 2TB.

Charger: M2 Air introduced MagSafe 3. Comes with a 45W charger, but you can use any MagSafe 3 compatible charger up to 70W without issues. See MagSafe 3 chargers on Amazon.

Thunderbolt: Still TB3, not TB4.

External displays: M2 Air can drive two external displays — a significant upgrade from M1.

MacBook Air M3 (2024–2025)

M3 Air keeps the same memory ceiling: 24GB maximum unified memory, soldered. The real upgrade is to Thunderbolt 4 — making TB4 docks finally worth investing in.

Charger: MagSafe 3 with up to 70W. Compatible with all M2+ MagSafe 3 chargers.

External displays: Still two external monitors, same as M2.

MacBook Air M4 (2025+)

M4 Air raises the base memory to 16GB unified (previously 8GB for M1/M2/M3). Maximum is still 24GB. SSD up to 2TB. Same MagSafe 3 charging and TB4 as M3.

Key note: Apple’s move to 16GB base on M4 suggests the company has learned that 8GB is memory-constrained in 2025+ for multitasking, VM work, and development. If you’re buying new, start with 16GB or go higher if you do creative work.

MacBook Pro 14″ (M3 and M4)

MacBook Pro 14″ M3 (2023–2024)

RAM: Base M3 maxes at 24GB unified memory. M3 Pro goes to 36GB. M3 Max goes to 48GB. All soldered.

SSD: Soldered, up to 2TB on any configuration.

Charger: MagSafe 3 + USB-C dual connection. The charger is rated 67W, 96W, or 140W depending on the variant. Any 14″ Pro can use any of these wattages — higher wattage simply charges faster and supports heavier workloads without slow charging. Apple 96W USB-C adapter on Amazon.

Thunderbolt: TB4 on all M3 Pro/Max, making professional docks and external SSD arrays fully compatible.

External displays: M3 and M3 Pro support one external monitor; M3 Max supports up to two.

MacBook Pro 14″ M4 (2024–2025)

M4 raised the base configuration. Standard M4 now starts at 16GB unified memory (instead of 12GB on M3), maxing at 24GB. M4 Pro still tops at 36GB. M4 Max at 48GB.

Charger: Same MagSafe 3 + USB-C system. Comes with 67W default but supports up to 140W.

Thunderbolt: TB4 across the range.

External displays: M4 supports one external display; M4 Pro and M4 Max support two.

MacBook Pro 16″ (M3 and M4)

MacBook Pro 16″ M3 (2023–2024)

RAM: M3 Pro: 36GB max. M3 Max: 96GB max. Yes, you read that right — the 16″ Max could ship with nearly 100GB of unified memory. All soldered.

SSD: Soldered, up to 8TB (the largest on any MacBook currently sold).

Charger: MagSafe 3 + USB-C rated 96W, 120W, or 140W. The 16″ Max benefits from higher wattage chargers, especially when rendering or exporting video. All three are compatible with any 16″ Pro model.

Thunderbolt: TB4 across the board.

External displays: M3 Pro and M3 Max both support two external monitors.

MacBook Pro 16″ M4 (2024–2025)

RAM: M4 Pro now base at 16GB, maxing 36GB. M4 Max base at 24GB, maxing 48GB (down from 96GB on M3 Max, but still generous). This suggests Apple found M3 Max’s 96GB ceiling was rarely fully utilized.

SSD: Up to 8TB, same as M3.

Charger & Thunderbolt: Same as M3.

Legacy Upgradeable MacBooks (2012–2015)

If you own a MacBook Pro from 2012, 2013, 2014, or 2015, you still have upgrade pathways — though they’re narrow and getting narrower as these machines age.

MacBook Pro 13″ Non-Retina (2012) — The Last Fully Upgradeable MacBook

This is the holy grail for repairability and upgradeability: user-replaceable DDR3 RAM and a standard 2.5″ SATA SSD. Most machines shipped with 4GB or 8GB; you can upgrade to a maximum of 16GB (two 8GB SO-DIMM sticks). The hard drive bay accepts any 2.5″ SATA drive.

RAM upgrade path: Crucial DDR3 8GB SO-DIMM (2 sticks for 16GB total) — £40–60 on Amazon.

SSD upgrade path: Samsung 870 EVO 1TB SATA SSD — £70–90 on Amazon. This will dramatically speed up the machine. Going from a 5400-rpm hard drive to a SATA SSD is worth every penny.

Charger: 60W MagSafe (the old L-shaped connector, incompatible with newer models). Used chargers are plentiful on eBay; buy a replacement for £15–25.

MacBook Pro 13″/15″ Retina (2012–2015) — RAM Soldered, SSD Replaceable

The Retina models went back to soldered RAM (max 16GB on 2012–2014, 16GB on 2015) — you cannot upgrade memory. But the SSD is replaceable.

Here’s the catch: Retina MacBooks use a proprietary M.2-style blade connector (not standard SATA or NVMe). Each generation has a slightly different connector:

• 2012–2013 Retina: AHCI SSD (specific to these years)
• 2014–2015 Retina: NVMe SSD (not compatible with 2012–2013)

Third-party SSDs (Samsung, OWC) made for these years are available but expensive and harder to find. Expect £180–300 for a 1TB blade. If you own a 2012–2015 Retina MacBook, upgrading the SSD is possible but not recommended unless the original drive is failing.

Upgrading is more practical if you’re replacing a failing drive (warranty work) than for speed improvement.

MagSafe 3 Charger Compatibility Guide

MagSafe 3 launched with the MacBook Pro 16″ M1 Pro/Max in January 2021 and now powers all current MacBooks. The magnetic connector is identical across all MagSafe 3 models, so chargers are cross-compatible — but wattage matters.

Key rule: A higher-wattage MagSafe 3 charger is always safe with any MacBook. The machine will only draw what it needs. Conversely, a lower-wattage charger will charge slowly under heavy load but won’t damage the battery.

Recommended chargers:

• Apple 67W MagSafe 3 on Amazon — versatile for all models
• Apple 96W MagSafe 3 on Amazon — best for Pro models under load
• Anker 65W MagSafe 3 alternative on Amazon — third-party option with USB-C PD

Note on third-party chargers: Not all USB-C chargers with MagSafe 3 magnets are created equal. Check that third-party chargers explicitly state “MagSafe 3 compatible” and include USB-C PD certification. Generic USB-C chargers won’t properly communicate with the MacBook and may charge slowly or not at all.

Dock and Hub Compatibility

Since the SSD and RAM aren’t upgradeable, external expansion (storage, displays, peripherals) becomes critical. MacBooks rely on Thunderbolt ports for high-speed external connections.

Thunderbolt 4 Docks (Best Choice for 2024+ MacBooks)

If you own a MacBook Air M3/M4 or any M3/M4 Pro, you have Thunderbolt 4. TB4 docks give you the most flexibility: multiple 4K or 5K displays, high-speed external SSDs, and pass-through charging up to 96W.

Top picks:

• CalDigit TS4 — 5x TB4 downstream, up to 98W charging, up to two 6K displays. Premium option. Check price on Amazon.
• OWC 14-Port Thunderbolt Dock — Similar capability, slightly less expensive. Check price on Amazon.

USB-C Hubs (Budget-Friendly for All MacBooks)

If you don’t need maximum display count or external drive bandwidth, a USB-C hub is much cheaper. These don’t provide as much power or speed but cover basics: USB-A ports, SD card slots, HDMI video out.

Budget-friendly options:

• Anker 7-in-1 USB-C Hub — 100W charging, HDMI, SD card. Works on any MacBook. Around £35. Anker hub on Amazon.
• Ugreen USB-C Dock — Similar feature set, solid build. Around £40–60. Ugreen dock on Amazon.

External Display Limits

Remember that not all MacBooks support the same number of external displays:

• MacBook Air M1, MacBook Pro 14″ M3/M4: 1 external display
• MacBook Air M2–M4, MacBook Pro 16″ M3/M4: 2 external displays
• MacBook Pro 14″ M3/M4 Pro/Max, 16″ M3/M4 Pro/Max: 2 external displays

If you’re buying a dock expecting to run three monitors, verify your MacBook model first. Some third-party docks can work around this limit with DisplayLink technology, but check compatibility before purchasing.

Frequently Asked Questions

Can I upgrade the RAM in a MacBook Air or MacBook Pro?

No. Every MacBook from 2020 onward has unified memory that is soldered directly to the processor. You cannot upgrade RAM after purchase — not even by an Apple technician. Your only option is to buy a new machine with more base memory. This design choice prioritizes compactness, efficiency, and speed (unified memory is faster than traditional RAM) but sacrifices upgradeability.

Can I upgrade the SSD in a MacBook?

Not on current models. Apple’s M-series Macs have proprietary SSD controllers soldered to the motherboard. On older Retina models (2012–2015), the SSD is theoretically replaceable, but replacement drives are expensive and hard to source. Your best bet is to buy adequate storage at purchase time (256GB minimum; 512GB recommended for development or creative work).

What’s the last MacBook with upgradeable RAM and SSD?

The 13-inch MacBook Pro Non-Retina from 2012 is the last MacBook with both upgradeable DDR3 RAM (up to 16GB) and a standard 2.5-inch SATA SSD. It’s now 12+ years old, but if you find one in good condition, it can still be useful with an SSD upgrade. Retina models from 2012 onward have soldered RAM; some have replaceable but proprietary SSDs.

Can I use a Windows USB-C charger with a MacBook?

Technically yes — a USB-C Power Delivery charger (65W or higher) will charge a MacBook. However, MagSafe 3 MacBooks won’t charge via USB-C alone; you must use a MagSafe 3 charger. If you use a USB-C-only charger on a MagSafe 3 MacBook, the magnetic cable won’t attach. M1 Air does accept USB-C, so any high-wattage USB-C PD charger will work. Always verify the charger is certified for the correct wattage (at least 45W for Air, 67W+ for Pro).

How many external monitors can a MacBook support?

This depends on your model. Most M3/M4 MacBook Air and M3/M4 MacBook Pro 16″ models support 2 external displays. M3 and some M4 MacBook Pro 14″ models support only 1. M1 and M2 Air support 1 display. Check the specifications for your exact model before buying multiple monitors. High-end external GPU solutions (eGPU) can add more displays, but this is a specialized setup.

Is 8GB enough on a MacBook in 2026?

No, not anymore. In 2024–2025, macOS has grown more memory-hungry; 8GB is functional for light browsing and office work, but it causes noticeable slowdown with multiple browser tabs, video editing, or development tools. 16GB is the practical minimum in 2026. If you do video production, compiling code, or creative work, 32GB or more is wise. Since memory is fixed at purchase, buying too little is a regrettable mistake.

Related Upgrade Guides

• Laptop RAM Upgrade Guide — Explore which laptops still support user-upgradeable RAM
• External SSD Compatibility for Laptops — Connect fast storage to your MacBook
• Thunderbolt 4 Dock Compatibility — Docking station buying guide for MacBooks and other TB4 devices
• Is 8GB RAM Enough in 2026? — Memory requirements by use case

Recommended Products

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Prices and availability may vary. As an Amazon Associate, we earn from qualifying purchases.

Related Guides

• Ram Compatibility
• Ssd Compatibility
• Charger Compatibility
• Dock Compatibility
• Macbook Pro 16 M4 Max 2024