Unlocking Maximum Bandwidth for Modern Media Workflows
The demand for high-speed, reliable storage has reached a new peak as 8K and 12K RAW video formats become standard in professional production. To meet these requirements, OWC has introduced the Express 4M2 Ultra, the first certified Thunderbolt 5 four-slot NVMe M.2 SSD enclosure.
Unveiled at NAB 2026, this device represents a significant leap forward in external storage, offering creators and businesses the bandwidth necessary to handle intensive multi-cam sequences and massive high-resolution libraries without the traditional bottlenecks of older hardware.
Thunderbolt 5 and Real-World Performance
The primary innovation of the Express 4M2 Ultra is its integration of Thunderbolt 5 technology. This new standard provides extraordinary bandwidth, allowing the enclosure to reach real-world performance speeds of up to 6622MB/s. This speed is critical for post-production teams working with high-bitrate footage, as it enables smooth playback and rapid file transfers that were previously only possible with internal drives or much larger, more expensive rack-mounted systems.
The enclosure is designed to be future-ready while maintaining backward compatibility. It works seamlessly with Thunderbolt 5, Thunderbolt 4, and USB4 on both Mac and PC, and it remains compatible with Thunderbolt 3 Macs. This versatility ensures that a business can upgrade its storage infrastructure today without needing to immediately replace its entire fleet of existing workstations.
DIY Flexibility and Massive Capacity
The Express 4M2 Ultra is a do-it-yourself (DIY) device, meaning users have the freedom to select and install any four NVMe M.2 2280 or 2242 SSDs. This flexibility allows content teams to scale their storage according to their specific budget and performance needs. With the ability to house up to 32TB of storage in a footprint that takes up minimal desk space, the 4M2 Ultra is an ideal solution for small studios and mobile editing rigs.
For teams requiring even more room, the enclosure supports expandable capacity. Multiple units can be daisy-chained and configured as a single volume, providing massive storage space without sacrificing transfer speeds. This "building block" approach to storage management allows businesses to scale their hardware alongside their project demands.
Advanced RAID Management and Thermal Design
Reliability is as important as speed when dealing with irreplaceable project data. The Express 4M2 Ultra is RAID-ready, supporting configurations such as RAID 0, 1, 4, 5, 10, and JBOD. Users can manage these arrays through OWC’s SoftRAID software or their preferred RAID utility, allowing for a balance of maximum speed or enhanced data redundancy.
To maintain these high performance levels over long working sessions, the enclosure features an aircraft-grade aluminum housing. This solid construction works in tandem with a smart adaptive fan that quietly manages heat, ensuring the drives remain cool and perform consistently during heavy rendering or data-intensive tasks. This silent operation is a crucial feature for editors and sound engineers working in quiet studio environments.
Connectivity and Peripheral Integration
Beyond its primary role as a storage device, the Express 4M2 Ultra serves as a hub for the modern desktop. It includes a second Thunderbolt port, which allows for the connection of up to five additional Thunderbolt devices and one USB peripheral. This helps reduce cable clutter and simplifies the setup for creators who need to connect monitors, audio interfaces, and other production tools through a single workstation link.
Availability and Professional Use Cases
The OWC Express 4M2 Ultra is currently available for pre-order, with units expected to ship in the third quarter of 2026. Pricing begins at $399.99 for non-SoftRAID models, making it an accessible entry point for independent filmmakers and small production houses looking to modernize their data management.
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