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4.0TB OWC Accelsior 1M2 PCIe NVMe SSD

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In stock at supplier: Yes

Leaves our warehouse in approximately 1-2 weeks

Shipping cost is $9.90 (flat rate) for any size order.
This product is covered by an Australian Replacement Warranty.
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Product code: OWCSACL1M04

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The speed boosting, capacity expanding PCIe NVMe SSD internal storage solution for pro content creators, performance enthusiasts, and gamers.

Your price: $1,399.99

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Accelsior 1M2 
4.0TB PCIe NVMe SSD Storage Solution

The speed boosting, capacity expanding PCIe NVMe SSD solution for pro content creators, performance enthusiasts, and gamers
Boost. Expand. Maximize.

The Accelsior 1M2 is a Plug and Play PCIe x4 NVMe SSD storage solution that lets you boost the speed and expand the storage/backup capacity of your Mac Pro 2019, Mac Pro 2012 and 2010, or PC tower. By adding a new world of performance-maximizing capabilities to your machine, you can enjoy:

  • Near instant start-up and business critical app launching
  • Real-time processing of intensive transfer tasks like multi-stream video editing
  • Shorter render, capture, and process times in video suites like Adobe Premier, Final Cut Pro/Pro X, DaVinci Resolve, and Avid Pro Tools
  • Quicker production capabilities in photo and audio platforms like Adobe Photoshop, Lightroom, and Apple Logic Pro X
  • Faster game level-loading, responsiveness, and save times
  • More years of productive use from your machine
Enjoy the Fast Lane
When your upgrade goal is to make your machine as fast as possible with maximum reliability and cost effectiveness, the Accelsior 1M2 is the answer. It utilizes an open PCIe slot in your Mac Pro or PC to deliver the thrilling speed advantage of a NVMe PCIe SSD. It’s Plug and Play ready to put you in the fast lane of pure uncompromised storage performance.
Powered by The Best So You Can Be Your Best
At the heart of Accelsior 1M2’s mind-blowing power is an OWC Aura SSD that’s been engineered with fail-safes to increase longevity and preserve best consistent performance, especially in write-intensive workflows. From running double checks on data and correcting errors to ensuring the uniform use of its flash media, the Aura-based Accelsior 1M2 is a stable, dependable, and ultimately safer place to store your data.
Keep Your Cool Silently
When deadlines and workload pressures start to mount, the Accelsior 1M2 helps you keep your cool. An industrial quality black aluminum alloy heat sink with deeply grooved fins silently keeps the Accelsior 1M2 performing at its best so you can remain chill focused.
The Performance Advantage of NVMe
Non-Volatile Memory Express (NVMe) is a communication standard specifically built to optimize the performance of modern flash technology. It enables the Accelsior 1M2 to deliver significantly faster SSD performance vs an SSD using the SATA interface, a communication protocol that was originally designed for hard disk drives.
Perfect Inside or Out
By supporting PCIe 4.0 and earlier motherboards and able to plug into x4/x8/x16 PCIe slots, the Accelsior 1M2 is a perfect performance drive upgrade for a wide variety of full-sized and small form factor computers.
If your Mac/PC doesn’t have an open or compatible PCIe slot but is Thunderbolt 3 compatible, the Accelsior 1M2 can be used externally in a PCIe Expansion chassis like the OWC Mercury Helios 3S. (sold separately).
Test-Certified for Mac Pro 2019
Time is money and you can’t risk depending on a cheap, no-name device that claims to work trouble-free. Before every Accelsior 1M2 ships, it undergoes a undergoes a multi-step performance certification to ensure it arrives ready for demanding use with the Mac Pro 2019 as well as Mac Pro 2012/2010 machines and PC towers. With OWC, there’s no costly downtime or stressful frustration…just the rewarding satisfaction of professional-grade quality.
Data transfer rate performance will vary based on SSD used, CPU capabilities, and PCIe slot used.
  • Test-certified: verified compatible with 2019 Mac Pro as well as 2012/2010 Mac Pro machines and PC towers
  • OWC Aura SSD powered: advanced NVMe technology for up to 3200MB/s real-world speed for bandwidth-heavy video, audio, photography, and design needs
  • Store more: adds capacity for critical footage, images, files and games
  • Bootable: start working and launch apps in seconds
  • Play better: Experience immersive, stutter-free game play
  • Cool: aluminum alloy heat sink for silent, throttle-free performance
  • Slot-powered: no extra power cables needed
  • Versatile: installs into x4, x8 or x16 PCIe slots
  • Plug and play: no drivers needed


Product Specifications

  • Standard Mechanism
    • (1) OWC Accelsior 1M2 M.2 SSD to PCIe 4.0 Adapter Card
    • (1) OWC 4.0TB Aura P12 Pro NVMe M.2 SSD
    • *1GB = 1,000,000,000 bytes. Total accessible capacity varies depending upon operating environment (typically 5-10% less). The actual total capacity will depend on your own defined file settings/preferences.
    • **OWC reserves the right to replace or upgrade to equivalent or better components.
  • RAID Support
    • No 
  • Certifications
    • BSMI
    • CE
    • FCC
    • RCM
    • VCCI
  • Mac OS Compatibility
    • macOS 10.13 High Sierra
    • macOS 10.14 Mojave
    • macOS 10.15 Catalina
  • PC OS Compatibility
    • Windows 10 64-bit Edition
    • Windows Server 2016
  • Other Requirements
    • NVMe M.2 SSD with 2230, 2242, 2260, 2280, or 22110 form factor and M-key connector.
  • Dimensions
    • Height: 6.7 cm (2.6 in)
    • Length: 15.4 cm (6.1 in)
  • Weight
    • 101.0 g (0.22 lbs)
  • Activity LED
    • 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
  • Idle (Typical)
    • 0.0 bels
  • Seek (Typical)
    • 0.0 bels


  • Please note that compatible AKiTiO or OWC enclosures that utilize a PCIe slot may require its own minimum hardware and OS operating requirements which may differ from the Accelsior 1M2. The 1M2 minimum system requirement must be met in additional to those requirements in order for both to operate.
  • Booting support requires that your motherboard BIOS support booting via PCIe NVMe drives. Booting on Mac Pro (2010-2012) requires macOS 10.14.6.

Additional Information

Colour No
Type SSD (Faster)
Connection No
Interface PCIe NVMe
Form Factor PCI Express
Suitable for No
Model Identifier No
Manufacturer OWC
Manufacturer P/N OWCSACL1M04
UPC 810586036665
Shipping Restriction N/A

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Macfixit Australia is an Australian owned and operated business based in Melbourne, Victoria and we've been operating since 2005.

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Shipping cost is $9.90 (flat rate) for any size order. Express Options are available in cart/checkout. All in-stock orders are shipped the same day if received by 10.30 AM (Eastern Time Victoria). Orders received after 11:00 AM are shipped the following business day.

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