OWC Express 4M2

OWC Express 4M2 Horizontal OWC Express 4M2 Horizontal OWC Express 4M2 Front OWC Express 4M2 Back OWC Express 4M2 Vertical OWC Express 4M2 Cutaway with OWC Aura P12 SSDs

OWC Express 4M2


Up to 2800MB/s

Blazing fast transfer speeds

Up to 32TB

Storage capacity

Quick Specs:

  • Thunderbolt 3
  • DisplayPort
  • 4 Drive Bays
  • RAID Ready
  • Mac & Windows

Infinitely configurable. Infinitely reconfigurable.

  • Four NVMe M.2 SSD slots
  • Compact design
  • Includes SoftRAID XT: robust software for creating, monitoring, and managing advanced RAID sets
  • Thunderbolt Certified for Mac and Windows
  • Thunderbolt cable included
  • 1 Year OWC Limited Warranty

  • Performance & reliability at an exceptional value

  • Wide array of model configurations

  • OWC storage solutions consistently receive top ratings

  • Industry-leading warranty & support. Get help »


DIY Enclosure

With SoftRAID XT — RAID 0/1/4/5/1+0 (10) or JBOD

DIY Enclosure

Add your own RAID software

Pint-Sized Powerhouse

Small in stature. Big on capability. The OWC Express 4M2 is ready to serve with four easy-to-access NVMe M.2 SSD slots customizable for any workflow with vibration damping feet that allow for vertical or horizontal orientation. Install up to 32TB of capacity and experience up to 2800MB/s of mind-bending performance via Thunderbolt 3. The Express 4M2 is an amazingly small digital workhorse with world-renowned OWC quality and award-winning support built in.

Built Smaller and Faster from Input by Pros Like You.

The OWC Express 4M2 is designed with superior ease-of use in mind. We worked with award-winning creatives and listened to the kudos they heaped onto the OWC ThunderBay mini, and we put all that shared knowledge to good use when we set out to build the next-gen Thunderbolt 3 multi-bay drive. The result is the 57% smaller and 2.5x faster OWC Express 4M2.

It's smaller and easier to fit into your workflow, studio and on stage. It's faster with four easy-access M.2 slots so you can swap, upgrade or expand your Express 4M2 to configure and reconfigure it to serve any project need.

OWC Express 4M2 Vertical
OWC Express 4M2 Inside

Game-Changing NVMe SSD Performance

NVMe (Non-Volatile Memory Express) is a hyper-efficient communications interface protocol built from the ground up to properly take advantage of SSD technology and high-performance connection buses like PCIe. The result is exponentially faster and efficient SSD storage, and the OWC Express 4M2 has room for four NVMe SSDs.

OWC SoftRAID
SoftRAID Logo

RAID Made Easy

Harness the full capability of your OWC drive array with the included SoftRAID XT, the most powerful, intuitive RAID management software on the market for macOS and Windows. SoftRAID’s RAID creation and management technology has been finely tuned to perfection with over 20 years of development to provide rock solid protection of your data and optimize drive performance.

Packed with Features

SoftRAID XT provides an unbeatable combination of speed, protection, and compatibility:

  • Advanced: Create RAID 0/1/4/5/1+0 (10) arrays1
  • Protected: SoftRAID Monitor constantly watches your disks and alerts you if problems are detected
  • Validated: Volume validation ensures sectors can be read and parity is correct
  • Certified: Checks disks before use to ensure they are safe for data storage
  • Vigilant: Error prediction helps protect against unexpected failure
  • Universal: Move SoftRAID arrays seamlessly between Mac and PC2 with built-in OWC MacDrive technology

Beyond Hardware RAID

SoftRAID provides a level of storage performance that you simply can’t get with hardware RAID. Software RAID gives you increased power and control over your RAID drives and disks that hardware RAID can’t deliver and doesn’t lock you into technology that you can’t upgrade or expand.

Dive deeper into the benefits of SoftRAID »
  1. RAID 4/1+0 (10) is available for Mac only at this time.
  2. SoftRAID serial numbers work on both Mac and Windows. SoftRAID is licensed per computer. In order to use SoftRAID on multiple computers, you will need a unique, valid license per computer. Additional licenses can be purchased anytime.
OWC Express 4M2 Multi-Drive Support with SoftRAID

Multi-Drive Flexibility

Configure and reconfigure your storage however you need by combining multiple OWC Express 4M2 drives together on Mac and Windows. With OWC SoftRAID (included with Express 4M2) you get the amazing capability to RAID across multiple drive enclosures. On a Windows PC, add more Express 4M2 drives to your storage pool using Windows Storage Spaces.

OWC Express 4M2 Back

DisplayPort

Display connection flexibility is yours with a convenient DisplayPort located right on the rear of the OWC Express 4M2. There's no need to worry about adapters or extra long cables. Just plug your display directly into the Express 4M2 and you're all set.

Thunderbolt Logo

Thunderbolt Made Easy

We make it easy to choose the right gear. Our Thunderbolt Certified products offer the same performance and functionality whether they are Thunderbolt 3 or Thunderbolt 4. And if you’re rocking a beloved Thunderbolt 2 machine, we offer an adapter so you can plug into our universe of award-winning solutions. No hassles, no confusion. That’s the OWC Difference.

Apple Mac models with Thunderbolt 2/Thunderbolt ports can be connected using an Apple Thunderbolt 3 (USB-C) to Thunderbolt 2 Adapter and a Thunderbolt 2 cable (available separately). This configuration provides data transfer at up to 20Gb/s but does not support notebook charging.

Your Digital Life...
Protected for Free

Your data is irreplaceable, and we take protecting it seriously. That's why this OWC Solution includes Acronis Cyber Protect Home Office – the world's only combination backup and antimalware solution that keeps your data protected from accidents, failures, and malware/ransomware attacks.

  • Complete Backup And Fast Recovery - Quickly restore your files or entire system at any time.
  • Easy Disk Cloning and Full Image Backup - Just two clicks to start a full disk image backup.
  • Cloud, Local or Hybrid Cloud Backup - Back up locally, to the cloud, or both. With 250GB of cloud storage, it’s your choice.
  • Integrated Protection from Malware - Behavioral heuristics stop ransomware and cryptojacking.

Learn more about Acronis Cyber Protect Home Office »

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OWC ClingOn

Stabilize Thunderbolt and USB-C Cables

Active workspaces expose gear to bumps, shoves, or even the random tail wag from a pet. OWC ClingOn custom cable stabilizers (sold separately) screw into the OWC Dock or OWC Drive housing to reduce – if not completely eliminate – cable strain on Thunderbolt and USB-C connections so you can work with confidence even in the highest foot traffic environments.

OWC Aura P12 Pro M.2 SSD with OWC Express 4M2

OWC Aura P12 Pro

The perfect match for Express 4M2

Combine Express 4M2 with its perfect performance match – fast OWC Aura P12 Pro NVMe M.2 SSDs. Build your own ultra-fast portable Thunderbolt 3 RAID ready external SSD, and enjoy incredible transfer speeds, capacity, and OWC reliability!

OWC Thunderbolt 3 Cable

OWC Thunderbolt Cable Included

OWC Express 4M2 solutions come with a certified 0.7 meter OWC Thunderbolt Cable. But if your workflow demands a different length to make the connection, OWC Thunderbolt (USB-C) Cables are the perfect choice.

OWC, Trusted by Pros & Enthusiasts the World Over

OWC, Trusted by Pros & Enthusiasts the World Over

We build our hardware to the highest standards of reliability and performance. Because 100% reliability is always the goal, we rigorously quality test and back our hardware with a 1 Year OWC Limited Warranty and award-winning customer support.

Learn More
  1. Apple Mac models with Thunderbolt 2/Thunderbolt ports can be connected using an Apple Thunderbolt 3 (USB-C) to Thunderbolt 2 Adapter and a Thunderbolt 2 cable (available separately). This configuration provides data transfer at up to 20Gb/s but does not support notebook charging.