2.0TB OWC Accelsior 1M2

We're sorry, but this item is no longer for sale. However, there may be more Internal Hard Drives & SSDs items available.

We recommend 2.0TB OWC Accelsior 4M2 Four-Drive NVMe M.2 PCIe 3.0 SSD Storage Solution with SoftRAID (Mfr P/N: SSDACL4M202T) from OWC for $599.99 as a suitable alternative.

2.0TB OWC Accelsior 1M2

NVMe M.2 SSD PCIe 4.0 Storage Solution for Mac Pro (Late 2019 - Current), Mac Pro (2010 - 2012), PC Towers & Thunderbolt PCIe Expansion Chassis


Mfr P/N: SACL1M02 OWC SKU: OWCSACL1M02

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

  • Test-certified: verified compatible with Mac Pro (2019) as well as Mac Pro (2010 - 2012) 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
  • 5 Year OWC Limited Warranty
availability

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.

Ready to go. Right out of the box.

OWC products are loved around the world for It Just Works™ ease-of-use and reliability. To provide the highest performance, reliability, and ready-to-run convenience available, your solution comes formatted in the native APFS macOS and iPadOS file system. With OWC, you don’t have to worry about reformatting hassles or confusion like other solutions — just plug your drive into your Mac or iPad and you’re good to go.
  1. Performance will vary depending on SSD used, CPU speed, and PCIe version.
  2. Performance in a Thunderbolt 3 PCIe expansion chassis limited by maximum Thunderbolt 3 PCIe bandwidth of 2,800MB/s.

IncludesIncludes

Back to top

    Drive Bays

    • 1 bay supporting: M.2 drives
    • Supports NVMe M.2 SSDs with 2230, 2242, 2260, 2280, and 22110 form factor and "M Key" connector type. Single- and double-sided SSDs are supported.

    Total Capacity

    • 1920GB Useable Capacity
    • Total Capacity: 2048GB
    • 128GB Allocated to real-time data redundancy and error correction

    Drive Mechanism

    • (1) 2.0TB OWC Aura Ultra III PCIe 3.0 NVMe M.2 2280 Solid-State Drive
    • *OWC reserves the right to replace or upgrade to equivalent or better components.

    Drive Format

    RAID Support

    • No

    PCIe Bus Interface

    • PCI Express 4.0 x4

    PCIe Form Factor

    • PCIe x4 half length, half height
    • Compatible with PCIe x4 slots or larger

    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 64-bit Edition
    • Windows Server 2016
    • Windows Server 2022
    • Windows 11

    Other Requirements

    • macOS 10.13.6 or later required.

    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

    Certifications

    • BSMI
    • CE
    • FCC
    • RCM
    • VCCI

    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
    1. Performance will vary depending on SSD used, CPU speed, and PCIe version.
    2. Performance in a Thunderbolt 3 PCIe expansion chassis limited by maximum Thunderbolt 3 PCIe bandwidth of 2,800MB/s.
    3. When installed, the following SSDs will only be compatible with Windows 10 systems: Hynix Gold P31, Samsung PM981a.

    BenchmarksBenchmarks

    Back to top

    Truth in Numbers: Another OWC Difference

    There are many attributes that define “The OWC Difference.” By listing real-world performance tests of OWC solutions, we’re confident you’ll be completely satisfied with your technology investment.

    macOS Test Results

    Blackmagic Disk Speed Test

    PCI 2.0

    Mac Pro (Mid 2010, MacPro5,1) with two 2.93GHz processor and 32GB RAM

    Blackmagic Disk Speed Test

    PCI 3.0

    Mac Pro (Late 2019, MacPro7,1) with 3.5GHz processor and 32GB RAM

    Blackmagic Disk Speed Test

    Thunderbolt 3

    MacBook Pro (16-inch, 2019, MacBookPro16,1) with 2.4GHz processor and 64GB RAM and Helios 3S

    AJA System Test

    PCI 2.0

    Mac Pro (Mid 2010, MacPro5,1) with two 2.93GHz processor and 32GB RAM

    AJA System Test

    PCI 3.0

    Mac Pro (Late 2019, MacPro7,1) with 3.5GHz processor and 32GB RAM

    AJA System Test

    Thunderbolt 3

    MacBook Pro (16-inch, 2019, MacBookPro16,1) with 2.4GHz processor and 64GB RAM and Helios 3S

    Windows Test Results

    CrystalDiskMark

    PCI 3.0

    Gigabyte (GA-Z170X-UD5 TH) with 2.70GHz i5-6400 processor and 16GB RAM

    AJA System Test

    PCI 3.0

    Gigabyte (GA-Z170X-UD5 TH) with 2.70GHz i5-6400 processor and 16GB RAM

    Compatibility & Installation VideosCompatibility & Installation Videos

    Back to top
    Notes:
    • Please note that compatible AKiTiO or OWC enclosures that utilize a PCIe slot may require their own minimum hardware and OS operating requirements which may differ from the Accelsior 1M2. The minimum system requirements for both the Accelsior 1M2 and enclosure must be met in order for both to operate.
    • Booting support requires that your motherboard BIOS support booting via NVMe PCIe drives. Booting on Mac Pro (2010 - 2012) requires macOS 10.14.6.
    Mac Pro (Mid 2023)
    Mac Pro (Mid 2023)
    Mid 2023
    Model ID: Mac14,8
    Apple M2 Ultra
    Mac Pro Rack (Mid 2023)
    Mac Pro Rack (Mid 2023)
    Mid 2023
    Model ID: Mac14,8
    Apple M2 Ultra
    Mac Pro (Late 2019)
    Mac Pro (Late 2019)
    Late 2019
    Model ID: MacPro7,1
    3.5GHz 8-Core Xeon
    Detailed SpecsInstall Videos
    Mac Pro Rack (Late 2019)
    Mac Pro Rack (Late 2019)
    Late 2019
    Model ID: MacPro7,1
    3.5GHz 8-Core Xeon
    Detailed SpecsInstall Videos
    Mac Pro (Late 2019)
    Mac Pro (Late 2019)
    Late 2019
    Model ID: MacPro7,1
    3.3GHz 12-Core Xeon
    Detailed SpecsInstall Videos
    Mac Pro Rack (Late 2019)
    Mac Pro Rack (Late 2019)
    Late 2019
    Model ID: MacPro7,1
    3.3GHz 12-Core Xeon
    Detailed SpecsInstall Videos
    Mac Pro (Late 2019)
    Mac Pro (Late 2019)
    Late 2019
    Model ID: MacPro7,1
    3.2GHz 16-Core Xeon
    Detailed SpecsInstall Videos
    Mac Pro Rack (Late 2019)
    Mac Pro Rack (Late 2019)
    Late 2019
    Model ID: MacPro7,1
    3.2GHz 16-Core Xeon
    Detailed SpecsInstall Videos
    Mac Pro (Late 2019)
    Mac Pro (Late 2019)
    Late 2019
    Model ID: MacPro7,1
    2.7GHz 24-Core Xeon
    Detailed SpecsInstall Videos
    Mac Pro Rack (Late 2019)
    Mac Pro Rack (Late 2019)
    Late 2019
    Model ID: MacPro7,1
    2.7GHz 24-Core Xeon
    Detailed SpecsInstall Videos
    Mac Pro (Late 2019)
    Mac Pro (Late 2019)
    Late 2019
    Model ID: MacPro7,1
    2.5GHz 28-Core Xeon
    Detailed SpecsInstall Videos
    Mac Pro Rack (Late 2019)
    Mac Pro Rack (Late 2019)
    Late 2019
    Model ID: MacPro7,1
    2.5GHz 28-Core Xeon
    Detailed SpecsInstall Videos
    Mac Pro (Mid 2012)
    Mac Pro (Mid 2012)
    Mid 2012
    Model ID: MacPro5,1
    3.2GHz 4-Core Xeon & 3.33GHz 6-Core Xeon & 2.4GHz & 2.66GHz & 3.06GHz 12-Core Xeon
    Detailed SpecsInstall Videos
    Mac Pro (Mid 2010)
    Mac Pro (Mid 2010)
    Mid 2010
    Model ID: MacPro5,1
    2.8GHz & 3.2GHz 4-Core Xeon & 2.66GHz & 2.93GHz & 3.33GHz & 3.46GHz 6-Core Xeon & 2.4GHz 8-Core Xeon & 2.66GHz & 2.93GHz & 3.06GHz & 3.33GHz & 3.46GHz 12-Core Xeon
    Detailed SpecsInstall Videos

    PC Compatible

    PC Compatible
    PC Compatible

    Products

    OWC Aura Pro III
    OWC Aura Pro III
    PCIe 3.0 NVMe M.2 2242 SSDs
    More Info
    OWC Aura Ultra III
    OWC Aura Ultra III
    PICe 3.0 NVMe M.2 2280 SSDs
    More Info
    OWC Aura Ultra IV
    OWC Aura Ultra IV
    PCIe 4.0 NVMe M.2 2280 SSDs
    More Info
    OWC Aura XPLOT Pro
    OWC Aura XPLOT Pro
    Enterprise Class PCIe 3.0 NVMe M.2 2280 SSDs
    More Info
    OWC Mercury Helios 3S
    OWC Mercury Helios 3S
    Thunderbolt 3 PCIe Expansion Solution
    More Info
    OWC Mercury M.2
    OWC Mercury M.2
    PCIe 3.0 NVMe M.2 2280 SSDs
    More Info
    OWC ThunderBay Flex 8
    OWC ThunderBay Flex 8
    8-Bay External Storage Solution + 8-Port Connectivity + PCIe Expansion
    More Info
    AKiTiO Node Duo
    AKiTiO Node Duo
    2-Slot PCIe Thunderbolt (USB-C) Expansion Chassis
    More Info
    AKiTiO Node Lite
    AKiTiO Node Lite
    Thunderbolt 3 PCIe Expansion Chassis
    More Info
    AKiTiO Node Pro
    AKiTiO Node Pro
    Thunderbolt 3 PCIe Expansion Chassis
    More Info
    AKiTiO Node Titan
    AKiTiO Node Titan
    Thunderbolt External GPU (eGPU) Solution
    More Info
    OWC Aura Pro IV
    OWC Aura Pro IV
    PCIe 4.0 NVMe M.2 2242 Solid-State Drive
    More Info
    OWC Flex 1U4
    OWC Flex 1U4
    Four-Bay Rackmount Thunderbolt Storage, Docking & PCIe Expansion Enclosure
    More Info
    OWC Mercury Helios FX
    OWC Mercury Helios FX
    Thunderbolt 3 External GPU (eGPU) Expansion Solution
    More Info
    OWC Mercury Helios FX 650
    OWC Mercury Helios FX 650
    Thunderbolt 3 External GPU (eGPU) Expansion Solution
    More Info
    OWC ThunderBay Flex 8
    OWC ThunderBay Flex 8
    Eight-Drive Thunderbolt Storage, Docking, and Expansion Solution with SoftRAID
    More Info
    OWC XG5-P
    OWC XG5-P
    PCIe 3.0 NVMe M.2 2280 Solid-State Drive
    More Info
    4.67 out of 5

    29 out of 33 (87%) reviewers would recommend this product

    Write a Review
    85%
    6%
    3%
    3%
    3%

    May old 2009 Mac Pro

    At first I did not know how it worked. I did not realize that the 1 TB card was part of this item so I thought I needed to order a 1TB card. I did then I realized I did not need it and I had to return this to you. Other wise it works great.

    I would recommend this product to a friend!

    Verified Purchase
    Verified PurchaseVerified Purchase.
    ObedientViper-98609, 
    • Reviewer:ObedientViper-98609
    Response from OWC, Support

    Thank you so much for your fantastic review! We're thrilled to hear that your 2009 Mac Pro is working great with our product. We understand that the initial confusion about the 1TB card can happen, and we appreciate your willingness to return the extra one. Your feedback is invaluable, and we're always here to help you get the most out of your purchases. Enjoy your upgraded Mac experience!


    Simple yet perfect product

    I bought two of those for my 2019 Mac Pro (MacPro7,1). One, crucially, was for the installation of Windows, which is always a cumbersome and dicey proposition on all Apple hardware at the best of times. The OWC Accelsior has facilitated the job beautifully: Windows Setup had no problem with Accelsior, and Windows 11 boots up — and runs — from the PCIe NVMe SSD perfectly. I wholeheartedly recommend the product: It is decidedly solid and a good value for money.

    I would recommend this product to a friend!

    Verified Purchase
    Verified PurchaseVerified Purchase.
    gimersky, 
    • Reviewer:gimersky
    Response from OWC, Support

    Wow, thank you so much for your fantastic review! We're thrilled to hear that the OWC Accelsior made your Windows installation on the Mac Pro a smooth and effortless experience. It's awesome to know that it's running perfectly for you! We truly appreciate your recommendation and are delighted you're satisfied with the product's value and performance. Happy computing!


    Great product from a great company.

    Otherworld Computing/MacSales, I highly recommend them and their support is top notch.

    I would recommend this product to a friend!

    Verified Purchase
    Verified PurchaseVerified Purchase.
    Reviewer3559113943, 
    • Reviewer:Reviewer3559113943
    Response from OWC, Support

    Thank you so much for your kind words and positive feedback! We are thrilled to hear that you had a great experience with our product and support. Your recommendation means the world to us. We will continue striving to provide excellent service to all our customers. Please feel free to contact us if you have any further questions, comments, or concerns.  https://eshop.macsales.com/Service/


    View More Reviews