OWC Express 1M2 80G review

Performance

OWC publishes different results for each assembled capacity. The 1TB and 2TB entries reach above 6,300 MB/s reads in its benchmarks, while the listed 8TB result is about 5,046 MB/s. These are maximum benchmark figures, not a promise to maintain that speed throughout a drive fill.

Macworld’s original 2TB Aura Ultra IV sample reached roughly 5.6 GB/s reads and 5.5 GB/s writes in Blackmagic. Its corrected Windows FastCopy result was 105 seconds for a 450GB write. The host models are not identified in the article, and its later 4TB WD SN850X update concerns a different internal drive. Neither sample should be used to predict every assembled capacity. ¹

Connectivity

OWC’s current compatibility table lists USB4 and Thunderbolt hosts, with Thunderbolt 3 restricted to Macs. Its manual also specifies minimum operating-system versions. Some coverage describes wider USB fallback, but that does not match the main current support table; do not choose this model for a USB 3-only computer without exact-host confirmation.

The original 40 Gb/s Express 1M2 remains the more straightforward option when USB 10 Gb/s fallback is part of the everyday workflow. Owners of that model gain the clearest reason to upgrade after moving to an 80 Gb/s host and finding that storage transfers are actually limiting their work. The new connection alone does not accelerate a slower computer port.

Design & Configurations

The finned body makes this a small desktop working drive that can travel, rather than a minimal pocket accessory. A detachable cable is useful when it needs replacing or when the workstation’s ports are awkwardly placed. The dimmable activity light also allows a less distracting setup.

The bare enclosure is a separate purchase configuration, and its performance depends on the SSD installed. This review’s linked configuration is the complete 1TB drive. The 80G enclosure supports 2242 and 2280 NVMe modules; unlike the original 40 Gb/s model, it does not list 2230. That matters to anyone considering reuse of an existing smaller module.

Setup & Ownership

The supplied file system is aimed at Macs; plan any cross-platform formatting before moving files onto the drive. OWC markets the enclosure as upgradeable, but its manual says opening a factory-assembled unit voids its warranty. The convenience of a ready-made drive should therefore be considered separately from the appeal of a build-your-own enclosure.

The current assembled-drive page and manual state a three-year limited warranty. The selected Amazon listing says five years, which has not been corroborated by those manufacturer documents. Treat the longer listing claim as unresolved when comparing coverage.

Alternatives

The original OWC Express 1M2 suits a 40 Gb/s computer and explicitly supports USB 10 Gb/s connections. It is still a useful working drive if the host will not change.

The OWC Envoy Ultra adds an IP67-rated enclosure and captive cable to a Thunderbolt 5 design. It makes more sense when environmental protection is a priority; the 80G’s detachable cable is preferable for flexible desk placement.

Verdict

The Express 1M2 80G is worth considering for a capable workstation doing frequent large transfers. Choose the assembled capacity on its own evidence, and verify the host before buying. An existing 40 Gb/s drive does not need replacing simply because a faster interface is available.