OWC Accelsior 8M2
Eight-Slot NVMe M.2 SSD to PCIe 4.0 Adapter Card with SoftRAID for Mac Pro (Late 2019 - Current), PC Towers & Thunderbolt PCIe Expansion Chassis
Mfr P/N: SSDACL8M200T OWC SKU: OWCSSDACL8M200T
World’s FASTEST and HIGHEST Capacity PCIe SSD
- Revolutionary: The fastest drive available for 2019 Mac Pro or Windows computers
- Mind-blowing Performance: Up to 12,000MB/s real world PCIe Gen 3 speeds today
- Future Upgradeable: Beyond 26,000MB/s speed with PCIe Gen 4 systems
- Massive Space: Add up to eight SSDs for jaw-dropping storage capacity
- Bleeding Edge Design: Utilizes the full bandwidth of the latest PCIe technology
- Includes SoftRAID: robust software for creating, monitoring, and managing advanced RAID sets
- Advanced RAID Capabilities: Supports multiple RAID levels and RAID sets for maximum flexibility
- Quietly Cool: Highly efficient and quiet heat-dissipating design for consistent peak performance
- Plug and Play: No drivers needed
- 3 Year OWC Limited Warranty
Astonishingly, Mind-Blowingly Holy Cow Fast
Whether it leaves you speechless in amazement or uttering colorful phrases, the Accelsior 8M2 can be summed up in one definitive sentence:
It’s the fastest, highest capacity PCIe SSD in the galaxy.
This beast destroys performance barriers and every PCIe SSD on the market today. So much so that we considered naming it the Annihil8r! We continuously push the boundaries of SSD capabilities so you can realize your true potential. With the Accelsior 8M2, we’re taking you beyond your wildest dreams and into the most demanding applications imaginable with certified reliability. From M&E postproduction, to real-time AI, to huge dataset climate research… you now have the power to confidently reach higher.
Obliterates Workflow Bottlenecks
As storage performance innovators, we know that bottlenecks cramp your style. The Accelsior 8M2 was purposely created to be the fastest drive you can use in any workflow. With space for up to eight NVMe M.2 SSDs, Accelsior 8M2 offers scorching speeds over 26,000MB/s and industry leading storage capacity. Now you have the overhead to go faster, process more, and save almost limitlessly.
Ultra-Reliable Design
Creating the fastest PCIe SSD meant combining bold engineering with the latest technology. Each of the Accelsior 8M2’s eight NVMe M.2 SSD slots can run at their full x4 lanes of data throughput. All that insanely fast speed is pumped through a full PCIe Gen 4 x16 lane architecture. And to ensure Accelsior 8M2 keeps running at peak speed for the long haul, there’s a quiet cooling fan in the aircraft grade aluminum heat sink. No compromises. No surrender. Just the ultra-reliable performance that Mac and PC users have come to depend on from OWC storage solutions.
Unlimited Possibilities
Accelsior 8M2 offers performance gains in so many diverse ways that it lets you create without limits:
- Stream and edit multiple high-res video streams without a glitch
- Experiment with larger formats and be closer to final work
- Edit and store massive photo images and graphics files
- Experience faster previews, renders, and processing in VFX programs
- Keep page scenery and textures looking sharp and flowing uninterruptedly in virtual reality environments
- Ensure augmented reality visualizations look life-like
- Effortlessly store and work with multiple production libraries and applications
- Run more iterations in DevOps in less time
- Quickly offload essential data to cloud archives for more advanced IoT management
Crushes I/O Intensive Apps
When work requires your storage device to deliver maximum IOPS (Inputs/Outputs Per Second) performance, the Accelsior 8M2 crushes data crunching tasks in a fraction of the time. Cloud applications, climate research, virtualization apps, you name it…the Accelsior 8M2 accelerates them all so you can work more efficiently.
When Survival Depends on Reliable Performance
Government agencies, companies, and institutions need the ability to reliably access and quickly analyze enormous data files to make decisions. The Accelsior 8M2 is ideal for “big data” geospatial apps used by emergency management organizations to process real-time conditions, such as natural disasters like a fire or flood. Officials making life-saving decisions can count on the Accelsior 8M2 to deliver actionable data in extreme situations where every second matters.
Reduces Timelines and Project Budgets
Whether you’re a Media and Entertainment production pro or a transportation logistics wizard, there’s one ever-present formula that affects your success:
Time = Money
There’s a priceless benefit in knowing you can work as fast as possible. Every microsecond saved adds up to money saved for your company. Case in point, a multiple Academy Awards™ winning film production company is currently using the best available storage technology, but still has workflow limits.
Here are some of the company’s problems that could be solved by implementing the Accelsior 8M2:
- Not enough capacity to store multiple reels, so they have to shuttle reel media between the main ingest drive and slower external storage devices.
- The time-consuming process of accessing a finished reel on external drives.
- Struggling with drive space-saving methods like flattening project layers, which requires re-rendering layers you’re working in.
- Not enough speed to view real-time playback. Playback must be viewed in several different modes to determine effects of filters and adjustments.
- Not enough speed to ensure smooth playback of industry’s emerging 8K and 10K 16bit film.
By eliminating the need to remove a reel and renders from their current storage platform, this company can shave up to two days from their production schedule. The Accelsior 8M2 could reduce production costs for this company with typical production projects of 10 reels of film by an estimated $8,000 per project, making this revolutionary SSD a seriously smart investment.
Takes Data to the Edge
As a high-performance NVMe-based storage solution, Accelsior 8M2 delivers the consistent low latency data throughput required in edge computing applications such as industrial automation, smart city ecosystems, and smart retail solutions. It feeds CPUs and GPUs huge amounts of data lightning fast for real-time predictive analytics. If your business provides data-driven services to customers, any lag in service could frustrate customers accustomed to instant information and lead to irreparable brand damage. With 60% of storage professionals using NVMe SSDs to process large data sets generated at the edge, Accelsior 8M2 is more than a competitive advantage…it is a best practice.
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
- 35+ Years of Experience of Pro Support to provide peace-of-mind with setup help, ongoing questions, or urgent disk issues
- And many more unique features.
- Learn more about SoftRAID
SoftRAID works with macOS 10.14+, Windows 10+, and Windows Server 2019/2022. M1 Macs require macOS 11.3 or later. SoftRAID is licensed per computer.
- Up to 26,926MB/s sequential max read/write performance based on testing a 16TB OWC Accelsior 8M2 (8 x 2TB OWC Aura Pro NVMe M.2 SSDs) installed in a Windows 10 PC equipped with a Gigabyte Technology x570 motherboard with an AMD Ryzen 9 3900 3.8GHz processor and 16GB RAM, running Crystal Disk Mark 7.0.0 (sequential 1Mbyte block size, 16 queues, 6 threads). Performance will vary depending on SSDs used, CPU speed, RAID setting, and PCIe version.
- SoftRAID works with macOS 10.14+, Windows 10+, and Windows Server 2019/2022. M1 Macs require macOS 11.3 or later.
- SoftRAID is licensed per computer.
- The Accelsior 8M2, when used with Windows, doesn’t have a driver that displays the device name. Windows lists the device as a Mass Storage Controller due to the absent driver. Performance of the Accelsior 8M2 in Windows is NOT affected by this device error.
Includes
- (1) OWC Accelsior 8M2 PCIe Adapter Card
- (1) Torx T8S Driver
- (1) Phillips PH1 Screwdriver
- (1) Quick Start Guide for OWC Accelsior 8M2
- (1) Assembly Manual & User Guide for OWC Accelsior 8M2
- (1) 3 Years of SoftRAID Premium Access (License located on device)
- (1) Quick Start Guide for OWC SoftRAID (Digital)
- 3 Year OWC Limited Warranty
Specs
Drive Bays
- 8 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.
- NVMe SSDs with a heatsink will not fit and are not supported.
Drive Interface
- PCIe 4.0 x16, NVMe 1.3
RAID Capable
- Yes
RAID Features
- Software RAID
RAID Management
- Includes OWC SoftRAID RAID Management Software
Card Interface
- PCIe
PCIe Bus Interface
- PCI Express 4.0 x16
PCIe Form Factor
- PCIe x16 full height, full length
- Compatible with PCIe x16 slots
PCIe Bandwidth Allocation
- Advanced Switch: A total of sixteen lanes of bandwidth are available with any single drive using up to four lanes max.
Mac OS Compatibility
- 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
- macOS 14.x Sonoma
- macOS 15.x Sequoia
PC OS Compatibility
- Windows 10 32-bit Edition
- Windows 10 64-bit Edition
- Windows Server 2019
- Windows Server 2016
- Windows Server 2022
- Windows 11
Power/Activity LED
- Yes
Dimensions
- Height: 12.7 cm (5.0 in)
- Length: 32.5 cm (12.8 in)
- Width: 2.2 cm (0.9 in)
Weight
- 750.0 g (1.65 lbs)
Ambient Temperature
- Operating: 41°F to 95°F (5°C to 35°C)
- Non-Operating: -4°F to 140°F (-20°C to 60°C)
Altitude
- Operating: -304.8 m to 3,048.0 m (-1,000 ft to 10,000 ft)
- Non-Operating: -304.8 m to 12,192.0 m (-1,000 ft to 40,000 ft)
Humidity
- Operating: 8% to 90% non-condensing
- Non-Operating: 5% to 95% non-condensing
Idle (Typical)
- 2.0 bels
Seek (Typical)
- 2.0 bels
- NVMe SSDs with a heatsink will not fit and are not supported.
- Before installing this product in a host device, write down the SoftRAID serial number that is listed on the back of the PCIe card. It is needed to setup the SoftRAID application.
- Performance will vary depending on SSDs used, CPU speed, RAID setting, and PCIe version.
- The LED function of this product will be disabled and not function if used with an 8TB OWC Aura Ultra IV MVMe M.2 SSD (OWCP4U8T1PT08).
Compatibility & Installation Videos
Note: Using OWC Accelsior 8M2 with PCIe 4.0 drives in a PCIe 4.0 slot requires a 6-pin auxiliary power connector (available separately).
Mac Pro

Mac Pro (Mid 2023)
Mid 2023
Model ID: Mac14,8
Apple M2 Ultra

Mac Pro Rack (Mid 2023)
Mid 2023
Model ID: Mac14,8
Apple M2 Ultra

Mac Pro Rack (Late 2019)
Late 2019
Model ID: MacPro7,1
3.5GHz 8-Core Xeon

Mac Pro Rack (Late 2019)
Late 2019
Model ID: MacPro7,1
3.3GHz 12-Core Xeon

Mac Pro Rack (Late 2019)
Late 2019
Model ID: MacPro7,1
3.2GHz 16-Core Xeon

Mac Pro Rack (Late 2019)
Late 2019
Model ID: MacPro7,1
2.7GHz 24-Core Xeon

Mac Pro Rack (Late 2019)
Late 2019
Model ID: MacPro7,1
2.5GHz 28-Core Xeon
PC Compatible

PC Compatible