# Can I upgrade the SSD on the iMac 2023 M3?

*Published: 2026-05-09 | Updated: 2026-05-09 | Source: https://shopsavvy.com/answers/imac-2023-m3-blue-ssd-upgrade*

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## Product: iMac 2023 M3 Blue
**Brand:** Apple

**Short answer: no.** The SSD on the 2023 M3 iMac is not user-upgradeable. Whatever capacity you order at checkout is the capacity you have for the life of the machine, full stop.

**Why it cannot be upgraded:**

On Apple Silicon Macs, the SSD is implemented as raw NAND flash chips soldered directly to the logic board. There is no M.2 slot, no SATA bay, and no proprietary blade module like older Intel MacBooks had. The storage controller lives inside the M3 system-on-chip itself, and the NAND modules on the logic board are paired to that controller via Apple's hardware-secured boot chain. Even Apple's own service technicians do not "upgrade" SSDs in the field — when storage fails, the entire logic board is swapped.

**The capacities Apple offers at order time:**

- 256GB SSD (base)
- 512GB SSD (+$200)
- 1TB SSD (+$400)
- 2TB SSD (+$800, only on the higher-tier 10-core GPU model)

**A note about the 256GB base config:**

The 256GB SSD on the M3 iMac uses a single NAND chip, which means slower sequential read/write speeds compared to the 512GB and larger configurations that use two or more NAND chips operating in parallel. Real-world testing has consistently shown the 256GB drive coming in at roughly half the sequential throughput of the 512GB drive. For most everyday use you will not notice — the SSD is still much faster than any hard drive — but if you regularly move large files (video, RAW photos, virtual machines), the 512GB upgrade is worth it for performance reasons even if you do not need the capacity.

**What you can do instead of upgrading internal storage:**

Since you cannot expand the internal SSD, your options for adding storage later are all external:

- **Thunderbolt 4 / USB 4 SSD** — Enclosures like the OWC Envoy Pro FX, Samsung X5, or Sabrent Rocket XTRM-Q deliver close to the speed of internal storage (up to ~2,800 MB/s on Thunderbolt). These are the right choice for video editing scratch disks, Lightroom libraries you want to keep portable, or just expanding your main library.
- **USB-C 10 Gb/s SSD** — Cheaper, slower (around 1,000 MB/s real-world), but plenty fast for backups, document storage, photo libraries, and Time Machine.
- **NAS over Ethernet or Wi-Fi 6E** — Synology, QNAP, or a homebrew TrueNAS box gives you bulk storage without taking up a port. Wi-Fi 6E throughput is genuinely good now if your access point supports it.

**Buying guidance:**

The same advice that applies to RAM applies here: pick the storage tier that covers your worst-case usage, because you cannot change it later, and the at-purchase upgrade cost is much lower than buying a new iMac sooner because you ran out of room. For most people that means 512GB minimum. Anyone doing photo or video work should look hard at 1TB.

## Current Prices

| Retailer | Price | Availability |
|----------|-------|-------------|
| Amazon | $1149.00  | Check |

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*Where this comes from: This answer is based on ShopSavvy's product database, real-time pricing from thousands of retailers, and analysis of user reviews to give you a well-rounded picture.*