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OWC Accelsior 4M2
Four-Slot NVMe M.2 SSD to PCIe 3.0 Expansion Card for Mac Pro (Late 2019 - Current), Mac Pro (2010 - 2012), and PC Towers
Mfr P/N: SSDACL4M2000 OWC SKU: OWCSSDACL4M2000
High-Performance NVMe M.2 SSD PCIe Expansion Card
- Supercharges Mac and PC: ideal for Mac Pro (Late 2019 - Current), Mac Pro (2010 - 2012), and PC towers
- Work faster: over 6,000MB/s real-world speed in RAID 0
- Store more: add capacity for critical footage, images, files, and games
- Built for RAID: just add your own RAID management software, like OWC SoftRAID; the fastest and most flexible RAID 0/1/4/5/1+0 (10) tool. Also supports Apple RAID and Microsoft Disk Manager.
- Silent cooling: finned heat sink cover for fanless operation
- Highly versatile: installs into a full-height, half-length x8 or x16 PCIe 3.0 or 2.0 slot
- Plug and play: no drivers needed
- 3 Year OWC Limited Warranty
Build The Fastest SSD Available
When OWC launched its first Solid State Drive in 2010, it was engineered to deliver the same attribute formula that Mac and PC users expected from OWC external storage solutions:
High performance + high reliability + affordable price = The OWC Difference
Nearly a decade later, our commitment to that winning formula remains steadfast as we push the boundaries of leading-edge SSD development with the Accelsior 4M2. It's ideal for uncompromised, data intensive, high bandwidth needs like large format video editing, VR/AR/MR environments, high transactional and complex calculation applications, and extreme gaming.
Accelsior 4M2 houses up to four NVMe M.2 SSDs under a finned heat sink cover that provides silent, throttle-free cooling. When tested with OWC Aura Ultra III NVMe M.2 SSDs, Accelsior 4M2 delivers over 6,000MB/s real-world speed with the highest reliability possible.
Highly Versatile with Mobile Possibilities
Whether you have the Mac Pro 2019, a Mac Pro 2012 or 2010, or PC tower, Accelsior 4M2 can go to work for you. As a half-length x8/x16 compatible card, this game-changer offers the versatility you need, so you're not tied to one slot size or limited by a space-confined computer case.
You can also enjoy the performance boosting benefits of Accelsior 4M2 with your Thunderbolt 3-equipped notebook computer, iMac workstation, or slot filled gaming rig. It's plug-and-play easy with a PCIe expansion chassis like the OWC Mercury Helios 3S.
Change Your Reality
Accelsior 4M2 offers performance gains in so many diverse ways that it will change your storage reality:
- Stream and edit high-res video and graphics files without a glitch.
- Experience faster previews, renders, and processing in VFX programs.
- Keep page scenery and textures looking sharp and flowing uninterrupted in virtual reality environments.
- Enhance the realism of augmented reality visualizations.
- Change levels seamlessly and play simulation and MMO games with continuously changing scenery or heavy mods without micro-stuttering.
- Give your computer a significant speed boost with improved system "snappiness," a fast OS boot drive, or a bottleneck-free scratch drive.
More Powerful With SoftRAID
Need more power and protection? Choose a solution that includes OWC's powerful SoftRAID RAID software.
SoftRAID is the most powerful, intuitive software RAID utility on the market. Multiple RAID levels let you select the RAID level that fits you or your project’s needs best. If you need maximum volume capacity, optimum drive performance, data protection, or a combination of attributes, SoftRAID has you covered.
Packed with features like drive validation, verification and failure prediction—SoftRAID includes features you simply don’t get with hardware RAID. It’s like having a datacenter on your desktop! From home users looking to protect photos and documents to professionals needing to protect and quickly access projects, SoftRAID is the perfect solution.
Try SoftRAID COMPLETELY FREE for 14 Days
Start protecting yourself and your data today! Get all of SoftRAID's great disk checking and monitoring features, plus the fastest and most efficient software RAID there is.
Professional Grade = Ready to Work
We understand having confidence in gear reliability is paramount to creative professionals. That's why every Accelsior 4M2 pre-configured solution undergoes a multi-step performance certification prior to shipping. This ensures your Accelsior 4M2 arrives operating properly and immediately ready for demanding use.
Includes
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- (1) OWC Accelsior 4M2 PCIe Expansion Card
- (1) Support Manual for OWC Accelsior 4M2 (digital)
- 3 Year OWC Limited Warranty
Specs
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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.
RAID Support
- Yes
Form Factor
- M.2 - 2280 "M Key"
Drive Interface
- PCIe 3.0 x8, NVMe 1.3
RAID Capable
- Yes
RAID Features
- Software RAID Capable
Internal Connectivity
- (4) NVMe M.2 Slots (PCIe 3.0 x4)
Card Interface
- PCIe
PCIe Bus Interface
- PCI Express 3.0 x8
PCIe Form Factor
- PCIe x8 full height, half length
- Compatible with PCIe x8 slots or larger
PCIe Bandwidth Allocation
- Advanced Switch: A total of eight lanes of bandwidth are available with any single drive using up to four lanes max.
Chipset / Controller
- ASMedia ASM2824
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
PC OS Compatibility
- Windows 10 64-bit Edition
- Windows Server 2016
- Windows Server 2022
- Windows 11
Other OS Compatibility
- Linux kernel versions 5.4 or later
Power/Activity LED
- Yes
Dimensions
- Height: 12.6 cm (5.0 in)
- Length: 18.1 cm (7.1 in)
- Width: 2.2 cm (0.9 in)
Weight
- 381.0 g (0.84 lbs)
Certifications
- CE
- FCC
RoHS Compliant
- Yes
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
- Backward compatible with PCIe 2.0 slots with reduced speeds.
- Performance in a Thunderbolt 3 PCIe expansion chassis limited by maximum Thunderbolt 3 PCIe bandwidth of 2800MB/s.
- Bootable using a single, independent M.2 startup disk, with the other three M.2 SSDs configured as independent volumes or as a software RAID (SoftRAID or Apple RAID). Mac Pro (2010-2012) requires macOS 10.14.6. Mac Pro (2019) requires macOS 10.15.1 or later.
- When installed, the following SSDs will only be compatible with Windows 10 systems: Hynix Gold P31, Samsung PM981a.
- 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
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Note: macOS requires 10.13.6 or later
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
Mac Pro (Mid 2012)
Mid 2012
Model ID: MacPro5,1
3.2GHz 4-Core Xeon & 3.3GHz 6-Core Xeon & 2.4GHz & 2.7GHz & 3.1GHz 12-Core Xeon
Mac Pro (Mid 2010)
Mid 2010
Model ID: MacPro5,1
2.8GHz & 3.2GHz 4-Core Xeon & 2.7GHz & 2.9GHz & 3.3GHz & 3.5GHz 6-Core Xeon & 2.4GHz 8-Core Xeon & 2.7GHz & 2.9GHz & 3.1GHz & 3.3GHz & 3.5GHz 12-Core Xeon
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Videos
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