You asked for it. We delivered. Express 4M2 Ultra combines everything creative professionals like you need in a high performance desktop RAID solution: massive all flash NVMe storage capacity, flexible RAID configuration, and the dramatically improved workflow efficiency of Thunderbolt 5 bandwidth. Built for demanding creative pipelines, it delivers up to 6622MB/s performance that turns massive 12K RAW video files, 8K multi-cam sequences, and monster photo libraries into effortless workflows.
Available in 4TB, 8TB, 16TB, and 32TB configurations, Express 4M2 Ultra gives you the speed, capacity, and reliability to keep projects moving from capture to final delivery. From backing up media cards on set to working through intense VFX compositing in post, Express 4M2 Ultra delivers the performance and storage flexibility you need to stay ahead of deadlines.
Expands With Your Growing Needs
Start with up to 32TB in a single compact enclosure. When you need more capacity, daisy-chain additional Express 4M2 Ultra units through the second Thunderbolt 5 port to create one huge, unified volume instead of juggling multiple drive letters or splitting projects across locations. Four enclosures give you 128TB and beyond. The second Thunderbolt 5 port also lets you connect up to five additional Thunderbolt devices plus one USB peripheral. Your workspace grows exactly how you need it. Production companies building shared storage arrays and solo creators future-proofing their setup get the same limitless scalability.
Unleash Maximum Speed with Thunderbolt 5
Express 4M2 Ultra is the fastest DIY multiple NVMe SSD enclosure we offer and was purposefully built to harness Thunderbolt 5's incredible 80Gb/s bandwidth. Experience up to 6622MB/s performance with your Mac or PC. Connect to Thunderbolt 4 or USB4 systems and still get speeds up to 3200MB/s. Even Thunderbolt 3 Macs tap into blazing performance. You're never locked out, and you're always ready for your next system upgrade.
Express 4M2 Ultra Connected to...
Runs As
Real-World Speed Up to
Mac computer
with Apple silicon M3/M4/M5 or newer with Thunderbolt 5
Thunderbolt 5 (80Gb/s)
6622MB/s
Mac computer
with Apple silicon M-series with Thunderbolt 3/4
Thunderbolt 4 (40Gb/s)
3200MB/s
PC
with Thunderbolt 5
Thunderbolt 5 (80Gb/s)
6622MB/s
PC
with USB4/Thunderbolt 4
USB4 (40Gb/s)
3200MB/s
Intel Mac computer
with Thunderbolt 3
Thunderbolt 3 (40Gb/s)
2800MB/s
Over 2x Faster Multi-Camera Ingest
In the fast-paced, tight-budget world of filmmaking where time is money, every minute saved is critical. When you're juggling multiple cameras or offloading a variety of media cards simultaneously, you’ll keep your production running ahead of schedule by ingesting over twice as fast with Express 4M2 Ultra vs 40Gb/s storage.
Full Speed with Full Focus
High-performance NVMe drives in RAID configurations generate serious heat. Whether you're rendering 8K footage, ingesting multiple media cards, or running intensive database operations, you get maximum performance without the noise that breaks creative focus or the thermal throttling that kills productivity. Express 4M2 Ultra's solid aircraft-grade aluminum body provides passive cooling and rugged protection, while a smart adaptive fan quietly activates only during sustained workloads.
Express 4M2 Ultra is ideal for:
DITs and Filmmakers wanting to build the fastest compact NVMe SSD RAID with expandable capacity and the ability to daisy-chain additional enclosures as a massive single volume or connect devices for additional capabilities through the second Thunderbolt 5 port while experiencing maximum offload speeds and thermal stability when backing up media cards from multiple cameras on set.
Professional video editors, VFX artists, Colorists, and high-volume photographers seeking the fastest NVMe SSD RAID to handle demanding post-production and editing workflows including 12K RAW video, VFX compositing work, multicam sequences in 8K RAW or ProRes video, and batch editing ultra-high-resolution pictures.
Performance-driven professionals, power users, and technical teams who require full control over capacity, speed, and scalability. Express 4M2 Ultra is the ultimate DIY Thunderbolt 5 NVMe RAID platform for pushing demanding workflows and data intensive applications beyond conventional limits.
Professionals who want full Thunderbolt 5 NVMe RAID performance right out of the box can order the Express 4M2 Ultra pre-configured with NVMe SSDs installed and ready to go.
The Most Powerful RAID Tool on the Planet
SoftRAID is the world’s fastest and most flexible application to configure, maintain, and protect your RAID volumes on Mac and PC. OWC enclosures include 3 Years of SoftRAID Premium.
High-Performance RAID 0/1/4/5/1+0 (10) volumes
Predictive Health Monitoring proactively notifies of Volume and Disk issues well before failure — provided on your computer and remotely
Seamless Cross-Platform Sharing with support for Apple-formatted APFS and HFS+ SoftRAID volumes between Mac and Windows at no additional cost
35+ Years of Experience of Pro Support to provide peace-of-mind with setup help, ongoing questions, or urgent disk issues
Select OWC solutions and enclosures include 3 Years of SoftRAID Premium! See Includes section for details.
Access Your Drives Anywhere with Strada. No Cloud Required.
Receive 2 Strada licenses for 90 days (a $180 value) with your purchase.
Strada turns your storage solution into a serious archival library at a fraction of what you would pay for equivalent cloud storage. With Strada (strada.tech), your remote team members can access, share, review, and edit files as if this drive was sitting right next to them. No costly cloud subscription. No time-consuming uploads. No shipping drives back and forth. Just because your hardware must stay in your studio doesn’t mean your files have to. Every qualifying OWC drive ships with Strada licenses included for 3 months, so your team can be working together the day it arrives.
Anyone can put a bunch of components in a housing and call it an enclosure or a drive. OWC is not just anyone. We’re a group of filmmakers, musicians, designers, content creators, and parents just like you wanting to capture and preserve that irreplaceable moment. Our data storage products go through countless hours of ongoing development testing and certification processes. We then subject them to extreme real-world abuses. The priority for some storage devices is to be a mass-produced, lowest price commodity. We do it differently because the reliability of your data and the longevity of an OWC product is priority #1.
Discover the OWC Difference
Since 1988, our mission has focused on maximizing the usefulness and longevity of your technology investment. Our business operations share that same sustainability commitment. As the first 100% on-site wind powered technology manufacturer/distributor in the U.S., we now generate excess power. 97% of solid waste is recycled. These and other actions have resulted in our headquarters being Energy Star® and LEED® Platinum certified. Learn more about our passion for the planet we share at macsales.com/green
Up to 6622MB/s achieved with PCIe 4.0 and later SSDs. PCIe 3.0 SSDs are limited up to 3800MB/s.
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