Mac Mini Storage: What You Need to Know

<aside>

Apple's Mac Mini models have historically limited internal upgrades due to soldered components. The M1 and M2 versions have non-removable SSDs, making expansion nearly impossible. However, the 2024 M4 Mac Mini changed the game with a removable SSD secured by just one screw. While it still uses a proprietary format and requires a DFU restore via another Mac, this design has enabled third-party internal upgrade options—something M1 and M2 models lack. For most users, though, external storage remains the easiest and safest expansion route.

</aside>

Evaluation Criteria

Indicator	Details
Price per TB	Cost-effectiveness is key, especially for large-capacity storage
Read/Write Speed	Includes continuous and peak speeds; important for video editing, AI, etc.
Theoretical Speed	Interface bandwidth: USB 3.2 Gen 2 (10 Gbps), Thunderbolt 3/4 (40 Gbps), etc.
Sustained Speed	Continuous write performance is critical for backups or large file workflows
Appearance & Build	Sleek or rugged depending on usage (office vs outdoor/data center)
Connection Method	USB-C is standard; look for secure fit, anti-loose designs
Portability	Consider size/weight for mobile workstations
Data Security	Water/dust/shock resistance; usually tradeoff with design or price
Power Supply	Especially relevant for larger desktop storage (AC vs USB-powered)

1. Can You Upgrade Internal Storage?

Apple doesn’t officially support internal SSD upgrades for Mac mini M4, as the SSD is typically soldered onto the board. However, advanced users have found third-party solutions:

iBoff xNAND4 Module: A plug-and-play internal SSD upgrade (250GB to 2TB). No soldering required but may void your warranty.
Caution: This is not a beginner-friendly upgrade. Proceed only if you're comfortable with hardware mods.

https://www.youtube.com/watch?v=H96B2WDTvvI

<aside>

⚠️Note: Internal SSDs can fail unexpectedly and aren’t ideal for non-tech users. For example: https://www.reddit.com/r/macmini/comments/1l0nved/my_thirdparty_ssd_is_died_use_external_ssd/

</aside>

2. External Storage Expansion: Portable SSDs and Enclosures

<aside>

💡 For most users, external SSDs are the easiest and safest way to expand storage. These drives are fast, portable, and work seamlessly with macOS.

</aside>

Top External SSDs:

https://www.youtube.com/watch?v=tEM0qByMlsc

3. SSD Enclosures — Build Your Own Drive

<aside>

💡 If you already own an SSD or want to save money, enclosures let you build your own external drive.

</aside>