The Apple MacBook Air M1 (released November 2020) marked a fundamental shift in computing with its custom-designed M1 chip. However, this page addresses one critical truth: both RAM and internal storage on the M1 Air are completely soldered to the logic board, meaning you cannot upgrade either after purchase. Understanding your configuration options at purchase time is essential, along with knowing what docks, chargers, and external storage solutions actually work with this machine.
Why the M1 Air Has No Upgrades
Apple integrated unified memory directly into the M1 package itself. Unlike previous Intel MacBooks where RAM could be swapped via a trapdoor, the M1’s Unified Memory Architecture bonds the RAM package to the processor during manufacturing. The same applies to the SSD: the solid-state drive is soldered directly to the logic board in a single NAND package. This means your RAM and storage choice at purchase is permanent for the life of the machine.
This design trades user upgradeability for performance gains (shared memory bandwidth between CPU and GPU) and thinness. If you plan to keep this machine for 5+ years, spec accordingly at purchase.
RAM Compatibility & Configuration Options
The MacBook Air M1 came in two fixed RAM configurations: 8GB or 16GB of unified memory. You cannot add more RAM after purchase. There are no RAM modules, no upgrades, no workarounds. Choose the right amount before you buy.
| Configuration | Unified Memory | Best For | Note |
|---|---|---|---|
| Base Model | 8GB | Light to moderate use: web browsing, email, office work, media consumption | Adequate for single-browser-tab users and light video editing |
| Upgraded Model | 16GB | Professional work: video editing, 3D rendering, software development, heavy multitasking | Recommended if you’ll keep the machine for 5+ years |
Given Apple’s tight integration of memory into the M1 package, even moderate creative work (photo editing in Lightroom, Final Cut Pro projects) benefits from the 16GB jump. If budget allows, the extra 8GB investment pays dividends over the machine’s lifetime.
SSD/Storage Compatibility & External Options
The MacBook Air M1 ships with either 256GB, 512GB, 1TB, or 2TB of internal SSD storage. Like the RAM, this drive is soldered and cannot be replaced or upgraded. You must choose your storage at purchase time.
However, you have excellent options for external expansion via Thunderbolt/USB-C:
| External Storage Type | Speed | Best Use Case | Example Product |
|---|---|---|---|
| Thunderbolt SSD | Up to 2,400 MB/s | Large video files, professional workflows | OWC Envoy Pro EX |
| USB-C NVMe SSD (portable) | Up to 1,050 MB/s | Portable backup, media library expansion | Samsung T7 |
| Desktop USB-C/Thunderbolt | Up to 2,400 MB/s | Studio setup, permanent expansion | SanDisk Extreme Pro |
For most users: buy 512GB minimum at purchase (the 256GB model is noticeably slower due to single NAND configuration), then add a USB-C external drive later if needed.
Charger Compatibility
The MacBook Air M1 supports USB-C Power Delivery charging only. It comes with a 30W USB-C charger in the box. This modest wattage is sufficient for the M1 chip’s low power draw, but understanding compatible alternatives is useful.
| Charger Type | Wattage | Compatibility | Speed |
|---|---|---|---|
| Apple 30W USB-C (stock) | 30W | Perfect match | Standard (included) |
| Third-party USB-C 30W | 30W | Fully compatible, must support USB Power Delivery | Standard |
| Higher-wattage PD chargers (45W, 65W, 96W) | 45W+ | Compatible — the MacBook only draws what it needs (~30W under load) | No faster charging (M1 bottleneck is ~30W), but useful for multi-device charging |
| iPad Pro/iPhone chargers | 20W–35W | Compatible, though slower to charge | Slower than 30W |
For travel or desk setups, a multi-port USB-C charger (45W+ with multiple USB-C ports) is practical for charging the MacBook and peripherals from one outlet.
Dock & Hub Compatibility
The MacBook Air M1 has two Thunderbolt 3 / USB4 ports on the left side. These ports support high-speed data transfer, video output, and power delivery. However, there’s one critical limitation: the M1 Air supports only 1 external display, even if you plug in two monitors.
| Dock Type | Port Count | Video Output | Best For | Example |
|---|---|---|---|---|
| Thunderbolt Dock (full featured) | 6–13 USB ports + 2–3 Thunderbolt | Dual 5K or single 6K display | Professional desk setup | CalDigit TS3 Plus |
| USB-C Hub (compact) | 4–8 USB ports | Single external display (via USB-C Alt Mode) | Portable, lightweight desk setups | Anker USB-C Hub 7-in-1 |
| Standalone display with dock | Built-in ports in monitor | Native display output | All-in-one desk solution | LG UltraFine 5K with Thunderbolt |
The 1-display limitation is a significant constraint for the M1 Air. If you need dual external monitors, you must use DP Alt Mode daisy-chaining (two Thunderbolt monitors connected in sequence), or use a single larger display instead.
MacBook Air M1 Specifications Summary
| Specification | Details |
|---|---|
| Processor | Apple M1 (8-core CPU, 7-core or 8-core GPU) |
| Unified Memory (RAM) | 8GB or 16GB (soldered, not upgradeable) |
| Internal SSD | 256GB, 512GB, 1TB, or 2TB (soldered, not upgradeable) |
| Display | 13.3-inch Liquid Retina, 2560×1600, 500 nits |
| Ports | 2x Thunderbolt 3 / USB4 (left side) |
| External Displays | Maximum 1 external display (or 2 via daisy-chaining Thunderbolt monitors) |
| Charging | USB-C Power Delivery, 30W charger included |
| Battery | 49.9 Wh (up to 15 hours claimed) |
| Weight | 1.24 kg (2.8 lbs) |
| Release Date | November 2020 |
Frequently Asked Questions
Can I upgrade the RAM on my M1 MacBook Air?
No. The RAM is soldered directly to the M1 chip package. There is no upgrade path. You must select the correct amount (8GB or 16GB) at purchase. If you need more memory later, you’ll need to replace the entire machine.
Can I replace the SSD after I buy it?
No. The internal SSD on the M1 Air is soldered to the logic board in a single NAND package. You cannot remove it or upgrade it. For additional storage, use external Thunderbolt or USB-C SSDs instead.
Will a 96W charger work, or will it damage the MacBook?
Yes, it will work safely. The MacBook Air M1 will only draw the power it needs (~30W under heavy load). USB Power Delivery negotiates the correct voltage between the device and charger, so a 96W charger will simply supply what’s requested. No damage occurs.
How many displays can I connect to my M1 Air?
One external display is the standard limit. However, if both displays are Thunderbolt monitors, you can daisy-chain them (plug the second monitor into the first), which counts as a single Thunderbolt connection and effectively gives you two external displays. Native support for two displays requires a machine with an M1 Max or M2 Max chip.
What external storage should I buy for the M1 Air?
For best performance, a Samsung T7 or SanDisk Extreme Pro portable SSD offers excellent speed (up to 1,050 MB/s) at reasonable cost. For studio setups, a Thunderbolt dock drive adds even more capacity and speed.
Recommended Products
These are the products we recommend based on this guide. All links go to Amazon UK where you can check current prices and availability.
| Product | Why We Recommend It | Amazon UK |
|---|---|---|
| Corsair Vengeance DDR4 SO-DIMM 32GB (2×16GB) 3200MHz | Best overall DDR4 upgrade kit | View on Amazon UK |
| Kingston Fury Impact DDR4 SO-DIMM 32GB (2×16GB) 3200MHz | Reliable alternative with tight latency | View on Amazon UK |
| Crucial DDR4 SO-DIMM 16GB 3200MHz | Budget single-stick upgrade | View on Amazon UK |
| Samsung DDR4 SO-DIMM 32GB 3200MHz | OEM-quality for business laptops | View on Amazon UK |
| Samsung 990 Pro 2TB NVMe M.2 2280 | Fastest consumer NVMe — ideal for gaming & editing | View on Amazon UK |
| WD Black SN850X 2TB NVMe | Excellent Gen4 speed with heatsink option | View on Amazon UK |
| Crucial P5 Plus 1TB NVMe | Great value Gen4 SSD | View on Amazon UK |
| Kingston NV2 1TB NVMe | Budget-friendly with solid reliability | View on Amazon UK |
Prices and availability may vary. As an Amazon Associate, we earn from qualifying purchases.
