External enclosure OWC Express 1M2 USB4 40Gb/s for NVMe M.2 SSDs, silver aluminum

OWC Express 1M2 USB4 is a compact external enclosure for a single NVMe M.2 SSD, finished in silver aluminum. It connects via USB4 with up to 40 Gb/s theoretical throughput and is designed to house compatible M.2 NVMe modules, turning an internal drive into portable high-speed storage suitable for backups, media editing, and rapid file transfers. The aluminum housing provides passive heat dissipation and a lightweight, durable form factor for mobile use.

Advantages

The enclosure supports USB4 connectivity, enabling up to 40 Gb/s interface bandwidth when paired with compatible hosts and NVMe modules. Its single-bay M.2 NVMe design accepts standard M.2 form-factor drives and offers tool-free or simple assembly for quick installation. The silver aluminum body aids in thermal management and keeps the enclosure lightweight for transport. Plug-and-play operation with common operating systems provides straightforward access without complex configuration.

Suitable for

• Extending laptop or desktop storage with an external NVMe M.2 drive
• High-speed file transfers between workstations and portable systems
• On-location photo and video editing where fast scratch or project drives are required
• Portable backups and archiving of large data sets

Key specifications

• Interface: USB4 (up to 40 Gb/s theoretical throughput)
• Drive type supported: NVMe M.2 SSD, single module
• Form factor: M.2 (single-sided and double-sided compatibility depends on enclosure internal clearance)
• Enclosure material: silver anodized aluminum for heat dissipation
• Power and data over a single cable (host-powered or bus-powered depending on host capabilities)
• Compatibility: supports systems with USB4 or compatible USB-C hosts; actual performance depends on host, cable and installed NVMe SSD

How to use

Open the enclosure according to the manufacturer instructions, insert a compatible NVMe M.2 SSD into the M.2 slot at the correct orientation, secure the module with the provided screw or retention method, and close the enclosure. Connect the included USB4/USB-C cable to a compatible host port. The drive should be recognized by modern operating systems and be ready for formatting or immediate use depending on its current state. For best transfer rates, use a host port and cable that support USB4 or the highest available specification supported by both host and enclosure.

Usage recommendations

To maintain optimal thermal performance during sustained heavy I/O tasks, place the enclosure on a stable, ventilated surface and avoid covering it. Use certified USB4 or high-quality USB-C cables rated for 40 Gb/s to achieve maximum throughput and ensure the host system supports USB4 for full performance. Check the physical height and length limits of the enclosure before purchasing an NVMe M.2 SSD to confirm compatibility with single- or double-sided modules.