Original price was: £ 2,528.75.£ 1,995.95Current price is: £ 1,995.95. | £ 2,395.14 inc VAT
OWC Express 4M2 Ultra – 0TB (SoftRAID Not Included)
OWC Express 4M2 Ultra – 0TB (SoftRAID Not Included)
Four-Slot Thunderbolt 5 NVMe M.2 Enclosure 0TB (SoftRAID Not Included)
OWC Express 4M2 Ultra is a four‑slot Thunderbolt 5 NVMe M.2 enclosure sold as a 0TB bare unit with SoftRAID not included.
Populate it with PCIe 3.0, 4.0 or 5.0 NVMe M.2 drives to build a high‑performance RAID tailored to workflow needs.
- Thunderbolt 5 (80Gb/s) host interface with up to 6622MB/s with PCIe 4.0+ SSDs.
- Four NVMe M.2 2242 / 2280 slots supporting single or double‑sided drives.
- Start with up to 32TB in one enclosure and expand up to 128TB via daisy chaining.
- Daisy chain up to five additional Thunderbolt devices plus one USB peripheral.
Category: Desktop Hard Drives & RAIDs
Brand: OWC
£ 365.95 | £ 439.14 inc VAT
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OWC Express 4M2 Ultra – 0TB (SoftRAID Not Included) Product Overview
OWC Express 4M2 Ultra is a four‑slot Thunderbolt 5 NVMe M.2 enclosure offered as a 0TB bare unit with SoftRAID not included. It is designed for professionals who want a DIY NVMe RAID platform that takes full advantage of Thunderbolt 5 bandwidth.
The chassis supports PCIe 3.0, 4.0 and 5.0 NVMe M.2 drives and scales from a single enclosure up to larger unified volumes by daisy chaining additional units.
Maximum Performance
Thunderbolt 5 (80Gb/s) connectivity delivers up to 6622MB/s real‑world speed when populated with PCIe 4.0 and later SSDs. When connected to Thunderbolt 4 or USB4 systems, speeds reach up to 3200MB/s, and Thunderbolt 3 hosts can achieve up to 2800MB/s.
Drive Compatibility and Capacity
Supports four NVMe M.2 2242 or 2280 SSDs, single or double‑sided, and accepts PCIe 3.0 / 4.0 / 5.0 SSDs. The enclosure accepts up to 8.0TB per drive for up to 32TB total in one unit and can expand up to 128TB as a single volume by daisy chaining additional Express 4M2 Ultra units.
RAID And Software
The unit supports RAID 0, 1, 4, 5, 10 and JBOD via OWC SoftRAID or other RAID utilities; SoftRAID is compatible but not included with this 0TB SKU.
Connectivity And Expansion
Provides two Thunderbolt 5 (80Gb/s) ports. The second Thunderbolt 5 port allows daisy chaining of up to five additional Thunderbolt devices plus one USB peripheral for expanded capacity and connectivity.
Cooling And Chassis
The solid aircraft‑grade aluminum body delivers passive cooling and rugged protection, while a smart adaptive fan activates only during sustained workloads to avoid unnecessary noise.
Compatibility
Compatible with Thunderbolt 5, Thunderbolt 4, and USB4 Macs and PCs as well as Thunderbolt 3 Macs for broad workstation use.
Includes And Warranty
Includes a Thunderbolt 5 80Gb/s cable. The product carries a 2 Year OWC Limited Warranty.
OWC Express 4M2 Ultra – 0TB (SoftRAID Not Included) Key Features
- OWC Express 4M2 Ultra is a four‑slot Thunderbolt 5 NVMe M.2 enclosure supplied as a 0TB bare unit with SoftRAID not included.
- Thunderbolt 5 (80Gb/s) connectivity delivers up to 6622MB/s real‑world performance when populated with PCIe 4.0 and later SSDs.
- Backward compatible with Thunderbolt 4 / USB4 at up to 3200MB/s and Thunderbolt 3 at up to 2800MB/s.
- Holds four NVMe M.2 2242 or 2280 SSDs, supporting single‑ or double‑sided drives and PCIe 3.0 / 4.0 / 5.0 generations.
- Supports RAID 0, 1, 4, 5, 10 (1+0) and JBOD when used with SoftRAID or another RAID utility.
- Start with up to 32TB in a single enclosure (up to 8.0TB per drive) and expand up to 128TB as one volume by daisy‑chaining additional units.
- Second Thunderbolt 5 port enables daisy chaining of up to five additional Thunderbolt devices plus one USB peripheral.
- Solid aircraft‑grade aluminum body provides passive cooling, while a smart adaptive fan activates only during sustained workloads.
- Includes a Thunderbolt 5 80Gb/s cable for host connection.
- Compatible with Thunderbolt 5, Thunderbolt 4, USB4 Macs and PCs, and Thunderbolt 3 Macs for broad workstation support.
OWC Express 4M2 Ultra – 0TB (SoftRAID Not Included) Technical Specifications
| Product | OWC Express 4M2 Ultra 60TB (SoftRAID Not Included) |
| Manufacturer SKU | OWCTB5ULT4M2 |
| Interface | Thunderbolt 5 (80Gb/s) |
| Ports | Two Thunderbolt 5 (80Gb/s) ports |
| Daisy Chain | Up to five additional Thunderbolt devices plus one USB peripheral |
| Drive Bays | Four NVMe M.2 bays (2242 / 2280), single or double-sided |
| Supported SSD PCIe Generations | PCIe 3.0 / PCIe 4.0 / PCIe 5.0 NVMe M.2 SSDs |
| RAID Levels Supported | RAID 0 / 1 / 4 / 5 / 10 / JBOD via SoftRAID or other RAID utility |
| Configured Capacity | 0TB (Bare enclosure) |
| Maximum Single-Drive Capacity | Up to 8.0TB per drive |
| Maximum Enclosure Capacity | Up to 32TB |
| Expandable Volume Capacity | Expand up to 128TB as one volume via daisy chaining additional Express 4M2 Ultra units |
| Real-World Speed (Thunderbolt 5) | Up to 6622MB/s (with PCIe 4.0 and later SSDs) |
| Real-World Speed (Thunderbolt 4 / USB4) | Up to 3200MB/s |
| Real-World Speed (Thunderbolt 3) | Up to 2800MB/s |
| Single-Drive / JBOD Speeds | PCIe 5.0: Up to 1600MB/s; PCIe 3.0: Up to 950MB/s |
| RAID 0 Speeds by PCIe Generation | PCIe 5.0: Up to 6622MB/s; PCIe 3.0: Up to 3800MB/s |
| Cooling | Smart adaptive fan; aircraft-grade aluminum body |
| Compatibility | Use with Thunderbolt 5, Thunderbolt 4, and USB4 Macs and PCs and Thunderbolt 3 Macs |
| Included Accessories | Thunderbolt 5 80Gb/s cable |
| SoftRAID | Compatible with OWC SoftRAID or other RAID utilities; SoftRAID not included with this SKU |
| Warranty | 2 Year OWC Limited Warranty |
OWC Express 4M2 Ultra – 0TB (SoftRAID Not Included) – Product Videos
OWC Delivery Information
Generally, next working day delivery services (UK Mainland) are available on standard OWC Delivery orders placed before 2 pm (subject to stock availability).
Non-timed deliveries should be delivered between 9 am and 6 pm.
Orders placed after 2 pm on Fridays and weekends will be processed as normal the following Monday.
Orders placed on Bank Holidays will be processed the next working day.
If urgent, please call one of our helpful account managers so they may double check everything for you, enabling you to place your order with confidence.
Please note: these product details are for guide purposes only, and may contain errors.
We always recommend double-checking the product specs and features on the the manufacturer website, or contact us if unsure before ordering.





