OWC / Other World Computing Accelsior 4M2 4TB PCIe NVMe M.2 Internal SSD

SKU: OWC4TBSSDA4M MFR: OWCSSDACL4M204T
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Key Features

  • Experience blazing-fast speeds with this 4TB OWC NVMe SSD, perfect for demanding workflows.
  • Unleash your creative potential with up to 6775 MB/s write speeds on this internal solid state drive.
  • Maximize storage and performance using the PCIe interface for rapid data access and transfer.
  • Achieve seamless video editing and rendering with this high-performance OWC Accelsior 4M2 SSD.
  • Includes SoftRAID XT, offering advanced RAID management for enhanced data protection on macOS/Windows.
  • Upgrade your system with this reliable M.2 form factor SSD, ensuring optimal performance for years.
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Special Order?Estimated to Ship: 08/30/2025
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$229.00

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OWC / Other World Computing Accelsior 4M2 Specifications

  • Number of Bays

    4

  • 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.

  • Capacity

    4.0 TB

  • Formatted Capacity

    3725GiB

  • Standard Mechanism

    4x 1.0TB OWC Aura Pro IV PCIe 4.0 NVMe M.2 2280 SSD

  • Controller

    Phison E12

  • NAND Flash Components

    Toshiba Synchronous Triple-Level Cell (TLC) 3D NAND Flash

  • S.M.A.R.T. Attributes

    Standard attributes supported

  • Native Command Queuing (NCQ)

    Up to 32 simultaneous commands

  • RAID Support

    Yes

  • Form Factor

    M.2

  • Storage Interface

    PCIe 3.0 x4, NVMe 1.3

  • RAID Capable

    Yes

  • RAID Features

    Software RAID

  • RAID Management

    Includes OWC SoftRAID XT RAID Management Software

  • Sequential Read (Max)

    Up to 6318 MB/s

  • Sequential Write (Max)

    Up to 6775 MB/s

  • Sequential Read (Average)

    6280 MB/s

  • Sequential Write (Average)

    6356 MB/s

  • Card Interface

    PCIe

  • Card Form Factor

    Half Length; Full Height

  • PCIe Lanes

    8x

  • PCIe Slot

    8x

  • PCIe Bandwidth Allocation

    Advanced Switch: A total of eight lanes of bandwidth are available with any single drive using up to four lanes max.

  • PCIe Version

    PCI Express 3.0

  • Chipset

    ASMedia ASM2824

  • Nonrecoverable Read Errors

    1 per 1016 bits read

  • TRIM Support

    OS Dependent

  • Error Correction

    Built-in ECC

  • Endurance

    1665TB total bytes written (TBW), equal to 652 GB per day for 7 years

  • 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 11

  • Other OS Compatibility

    Linux kernel versions 5.4 or later

  • Other Requirements

    SoftRAID XT works with macOS 10.14 or later and Windows 10 or later. SoftRAID is licensed per computer. The SoftRAID serial number will work with both Mac and Windows but can only be active on one computer at a time. Additional seats can be purchased. RAID 4/1+0 (10) are currently Mac only at this time.

  • Power/Activity LED

    Yes

  • RoHS Compliant

    Yes

  • Ambient Temperature

    Operating: 41 Degree F to 95 Degree F (5 Degree C to 35 Degree C)
    Non-Operating: -4 Degree F to 140 Degree F (-20 Degree C to 60 Degree C)

  • Altitude

    Operating: -1,000 to 10,000' (-304.8 to 3,048m)
    Non-Operating: -1,000 to 40,000' (-304.8 to 12,192m)

  • Humidity

    Operating: 8% to 90% non-condensing
    Non-Operating: 5% to 95% non-condensing

  • Idle (Typical)

    0.0 bels

  • Seek (Typical)

    0.0 bels

  • Certifications

    CE
    FCC

  • Dimensions (H x L x W)

    5 x 7.1 x 0.9" (12.6 x 18.1 x 2.2cm)

  • Weight

    13.43 oz (381g)

  • UPC Code

    810586033183

About OWC / Other World Computing Accelsior 4M2

For professionals seeking a high-performance, reliable, and capacious storage solution, the Accelsior 4M2 4TB PCIe NVMe M.2 Internal SSD is the ultimate choice. This internal SSD, one of the fastest in the market, is a testament to OWC's decade-long commitment to delivering high-performance, high-reliability storage solutions at an affordable price.

The Accelsior 4M2 is engineered to meet the needs of data-intensive applications, including large format video editing, VR/AR/MR environments, high transactional and complex calculation applications, and extreme gaming. It houses four OWC Aura P12 Pro NVMe M.2 SSDs under a finned heat sink cover, ensuring silent, throttle-free cooling. These blade-style SSDs utilize Quad-Level Cell (QLC) 3D NAND with SLC caching and a Phison E12 controller with 7% over-provisioning, delivering over 6,000MB/s real-world speed with the highest reliability possible.

Whether you're using a Mac Pro 2019, a Mac Pro 2012 or 2010, or a PC tower, the Accelsior 4M2's versatility is unmatched. As a half-length x8/x16 compatible card, it fits into any slot size and isn't limited by a space-confined computer case. It's also compatible with Thunderbolt 3-equipped notebook computers, iMac workstations, and slot-filled gaming rigs, offering plug-and-play ease with a PCIe expansion chassis like the OWC Mercury Helios 3S.

The Accelsior 4M2 transforms your storage experience, enabling you to stream and edit high-res video and graphics files seamlessly, experience faster previews, renders, and processing in VFX programs, and enjoy uninterrupted, sharp visuals in virtual reality environments. It also enhances the realism of augmented reality visualizations and ensures seamless level changes and micro-stutter-free gameplay in simulation and MMO games.

Included with the Accelsior 4M2 is the SoftRAID XT, a powerful, intuitive RAID management software for macOS and Windows. With over 20 years of development, SoftRAID's RAID creation and management technology provides rock-solid data protection and optimized drive performance. It offers advanced RAID 0/1/4/5/1+0 (10) array creation, constant disk monitoring, volume validation, disk safety checks, and error prediction.

The Accelsior 4M2 4TB PCIe NVMe M.2 Internal SSD is more than just a hardware RAID; it's a powerful, expandable storage solution that doesn't lock you into technology you can't upgrade. Each Accelsior 4M2 undergoes a multi-step performance certification before shipping, ensuring it arrives ready for demanding use. Trust in the Accelsior 4M2 for all your high-speed, high-capacity storage needs.

OWC / Other World Computing Accelsior 4M2 Features

  • Supercharges Mac and PC: ideal for Mac Pro 2019, Mac Pro 2012 or 2010, 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
  • Includes SoftRAID XT: easy and complete drive management
  • 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

Key Features

  • Experience blazing-fast speeds with this 4TB OWC NVMe SSD, perfect for demanding workflows.
  • Unleash your creative potential with up to 6775 MB/s write speeds on this internal solid state drive.
  • Maximize storage and performance using the PCIe interface for rapid data access and transfer.
  • Achieve seamless video editing and rendering with this high-performance OWC Accelsior 4M2 SSD.
  • Includes SoftRAID XT, offering advanced RAID management for enhanced data protection on macOS/Windows.
  • Upgrade your system with this reliable M.2 form factor SSD, ensuring optimal performance for years.

What's in the box:

  • OWC / Other World Computing Accelsior 4M2 4TB PCIe NVMe M.2 Internal SSD
  • SoftRAID XT RAID Management Software
  • User Manual
  • OWC / Other World Computing 5 Year Limited Warranty