OWC Express 4M2 Four-Slot Thunderbolt M.2 NVMe SSD Enclosure with SoftRAID XT
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You like to explore your own independent path, and digital storage is where you have fun, push hard and spark the imagination. You explore, you refine, and when ready, you share your vision with the world. The OWC Express 4M2 Four-Slot Thunderbolt M.2 NVMe SSD Enclosure with SoftRAID XT is the external drive built for the journey before you and the path is yet to be explored. Customize your Express 4M2 with up to four NVMe SSDs, RAID them however you wish, and connect it all with Thunderbolt 3 the fastest and most flexible interface around. The sheer performance of the Express 4M2 helps you meet deadlines faster, giving you more time to explore your creativity and push your projects further.
Pint-Sized Powerhouse
Small in stature. Big on capability. The OWC Express 4M2 is ready to serve with four easy-to-access M.2 NVMe SSD slots customizable for any workflow with vibration-ease-of-use 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. Ingest and duplicate dailies at breakneck speeds, work with higher resolutions, smoothly scrub through demanding timelines, and plow through thousands of photos with ease. The OWC Express 4M2 is one seriously fast drive to have by your side to take your digital capabilities to a new level.
Built Smaller and Faster from Input by Pros Like You
The OWC Express 4M2 is designed with superior ease of use in mind. OWC worked with award-winning creatives and listened to the kudos they heaped onto the OWC ThunderBay mini, and put all that shared knowledge to good use when they set out to build the next-gen Thunderbolt 3 multi-bay drive. The result is the 57 percent smaller and 2.5x faster OWC Express 4M2. It is 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.
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 more efficient SSD storage, and the OWC Express 4M2 has room for four NVMe SSDs.
DisplayPort
Display connection flexibility is yours with a convenient DisplayPort located right on the rear of the OWC Express 4M2. There is no need to worry about adapters or extra-long cables. Just plug your display directly into the Express 4M2 and you're all set.
Multi-Drive
The OWC Express 4M2 comes equipped with OWC SoftRAID which provides the amazing capability to RAID across multiple drive enclosures. You can also add more Express 4M2 drives to your storage pool using Windows Storage Spaces. Configure and reconfigure your storage however you need by combining multiple OWC Express 4M2 drives together on Mac and Windows.
SoftRAID - 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.
Beyond Hardware RAID
SoftRAID provides a level of storage performance that you simply cannot get with hardware RAID. SoftRAID 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.
OWC Thunderbolt cable
OWC Express 4M2 comes with an OWC Thunderbolt cable which is Thunderbolt certified for Mac and Windows, with additional 0.5 meters to 2.0 meters lengths available separately.
- Up to one 4K display at 60Hz,
- or one 4K display at 30Hz,
- or two 4K displays at 60Hz
- RAID 0
- RAID 1
- RAID 4
- RAID 5
- RAID 10
- JBOD
- RAID 6
- macOS 10.12 Sierra
- macOS 10.13 High Sierra
- macOS 10.14 Mojave
- macOS 10.15 Catalina
- macOS 11.x Big Sur
- macOS 12.x Monterey
- macOS 13.x Ventura
- Windows 11
- Windows 10 32-bit Edition
- Windows 10 64-bit Edition
- Windows Server 2016
- CE
- FCC
- Operating: 32 to 104-degree-F (0 to 40-degree-C)
- Non-Operating: -4 to 158-degree-F (-20 to 70-degree-C)
- Operating: -1,000 to 10,000 feet (-304.8 to 3,048.0 m)
- Non-Operating: -1,000 to 40,000 feet (-304.8 to 12,192.0 m)
OWC Express 4M2 Four-Slot Thunderbolt Up to 2800MB/s Speed M.2 NVMe SSD Enclosure with SoftRAID XT
| Display support | |
| Display support by port | Mini DisplayPort 1.2: Up to 4K at 60Hz |
| Boot support | All four drive bays are bootable on macOS. SSDs with 512-byte sectors require macOS 10.13 or later. |
| Hot plug support | Yes |
| Chipset | Thunderbolt 3 - Alpine Ridge DSL6540 |
| Data transfer rate (maximum) | Thunderbolt 3: Up to 40 Gb/s (or 5000 MB/s) |
| RAID capable | Yes |
| RAID levels supported | |
| RAID features | |
| Software RAID | |
| MTBF (Mean Time Between Failures) | Varies depending on the drive mechanism installed |
| Contact start stops | Varies depending on the drive mechanism installed |
| Mac OS compatibility | |
| PC OS compatibility | |
| Driver required | No |
| Host port requirements | Thunderbolt (USB-C) port (backward compatible with Thunderbolt 2/Thunderbolt1) |
| When using one or more SSDs with 512 byte sectors, macOS 10.13 or later is required. | |
| SoftRAID XT works with macOS 10.12 or later and Windows 10 or later. SoftRAID is licensed per computer. The SoftRAID serial number will work with both Mac and Windows but can only be active on one computer at a time. Additional seats can be purchased. RAID 4/1+0 (10) are currently Mac only at this time. | |
| Power supply | External UL-listed universal auto-switching power supply |
| AC input | 100-240V, 50-60Hz, 1-2A |
| DC output | +12V, 6A |
| Wattage | 72W |
| External power adapter | Yes |
| Power delivery | Two Thunderbolt 3 ports with 15W power delivery each. |
| Replacement adapter part number | OWCPWR12V6A (sold separately) |
| Number of bays | 4 |
| Drive bays | 4 bays supporting: M.2 drives |
| Supports NVMe M.2 SSDs with 2280 form factor and ‘M Key’ connector type. Single- and double-sided SSDs are supported. | |
| Host Port - Thunderbolt 3 (USB-C) up to 40 Gb/s (5000 MB/s) | |
| Thunderbolt 3 (USB-C) Port | |
| DisplayPort Port | |
| Cooling | 60mm 2,800RPM cooling fan |
| Security slot | No |
| Power/activity LED | Yes |
| Housing color | Black |
| Housing material | Aluminum |
| Dimensions (L x W x H) | 4.4 x 5.4 x 2.4 inch (13.6 x 11.3 x 6 cm) |
| Weight | 1.76 lb (800 g) |
| Certifications | |
| Device ports | |
| Ambient temperature | |
| Altitude | |
Frequently Asked Questions
How do I return an item?
How do I return an item?
Returns are incredibly simple. Please log into your account, find your item you wish to return and follow the prompts to make a return. If you do not have an account, click here to find your order and make a return.
Will I receive a full refund when I return an item?
Will I receive a full refund when I return an item?
You will receive a full refund when you return an item in its original manufacturer’s packaging, undamaged and unmarked. If the item you are returning is priced at less than $35, you will be charged a 15% restocking fee. Please note you will not be refunded any shipping charges.
How many days do I have to make a return?
How many days do I have to make a return?
You have 30 days to make a return. During the holiday season, from November 1 to December 31, we extend the return window to 60 days.
My item was damaged in transit. How do I place a return?
My item was damaged in transit. How do I place a return?
If your order has been noticeably damaged in transit, we strongly recommend that you refuse delivery and notify us immediately. Claims for missing items or items damaged in transit must be made within 48 hours of delivery. If there is carrier damage, please contact support@focuscamera.com with your order number and a description of the damage.
There’s an issue with my order, what should I do?
There’s an issue with my order, what should I do?
Oh no! Please contact our customer service team so we can resolve the issue immediately. You can call us on 1.800.221.0828, email us at support@focuscamera.com, or send us a message here.
Can I exchange an item?
Can I exchange an item?
We do not currently offer exchanges. Please return the item you purchased within 30 days and order what you’d like instead.
If I ordered a kit, do I have to return all the items?
If I ordered a kit, do I have to return all the items?
If you ordered a kit, you must return all components and accessories to receive a full refund.
I ordered a product that included a free item. I’d like to return it, do I need to return the free item as well?
I ordered a product that included a free item. I’d like to return it, do I need to return the free item as well?
If you ordered a product that included a free item, you must include the free item with your return. If not, your return will not be accepted and you will not receive a full refund.
Do you offer repairs?
Do you offer repairs?
We currently only offer camera repairs at our Brooklyn store. The item must be dropped off and collected in person as we do not accept shipped items for repair. For more information, please call our Brooklyn store on 1.718.431.7900.
What is your return policy?
What is your return policy?
Most items can be returned within 30 days for a full refund. Click here to read our full return policy.








