OWC
OWC 4.0TB Accelsior 4M2 PCIe M.2 NVMe SSD Adapter Card
Elevate your workflow with the OWC 4.0TB Accelsior 4M2, a high-performance PCIe NVMe M.2 SSD adapter card built for demanding Mac Pro and PC Tower environments. This card integrates four NVMe drives to deliver exceptional real-world speeds exceeding 6,000MB/s, perfect for intensive video editing and large data processing. Its finned heatsink ensures silent, fanless cooling, and it fits standard PCIe slots. Included are SoftRAID XT for advanced RAID management and a 1-year Acronis Cyber Protect Home Office subscription for robust data security.
$849.99
Owner Satisfaction
4.5
/ 5
Category Rank
289
/ 1154
#289 in Computer Interface Cards & Adapters
Price vs Category Average
+49%
Above average
Capacity
4.0
/ TB
Who it's for
- Extreme Performance
- High Storage Density
- Bootable on Supported Systems
Who should skip it
- Premium Price Point
- Significant Heat Generation
- High PCIe Lane Requirement
Key Specs
Capacity
4.0 TB
Interface Type
PCIe NVMe M.2
Data Transfer Rate
Over 6,000MB/s (RAID 0)
Form Factor
Half-length x8/x16 compatible card
Supported Protocols
NVMe
Compatibility
Mac Pro 2019, Mac Pro (2010-2012), PC Towers
Warranty
5 Year OWC Limited Warranty
Operating System Support
Mac and PC
Features
- Achieves over 6,000MB/s real-world speed
- Silent, fanless operation with heatsink
- Includes SoftRAID for advanced RAID management
- Plug and play installation, no drivers needed
- Versatile for PCIe 3.0 or 2.0 slots
- Includes 1-year Acronis Cyber Protect subscription
- Ideal for Mac Pro and PC Towers
- Adds significant storage for critical files
What customers say
Professionals consistently praise the OWC Accelsior 4M2 for its phenomenal speed, noting it significantly accelerates demanding workflows like video editing and rendering. A key benefit is consolidating multiple NVMe drives onto one bootable card, simplifying builds, especially in trusted Mac Pro systems. The core sentiment is highly positive regarding performance and build quality, positioning it as an essential, high-end workstation upgrade. However, users recognize this power comes at a premium price, making it best suited for those needing extreme throughput. A secondary consideration involves heat; intensive, prolonged operations can cause drives to run hot, requiring adequate system cooling to prevent performance dips.
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$850