2.0TB OWC Accelsior 4M2 PCIe 3.0 M.2 NVMe SSD Solution

  • - 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
  • - Plug and Play : no drivers needed

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OWCSSDACL4M202T
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OWC

2.0TB Accelsior 4M2
PCIe M.2 NVMe SSD Adapter Card

High-Performance PCIe M.2 NVMe SSD Adapter Card
Meet 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 Aura P12 M.2 NVMe SSDs under a finned heat sink cover that provides silent, throttle-free cooling. These “blade” style SSDs utilize Triple-Level Cell (TLC) 3D NAND with SLC caching and a Phison E12 controller with 7% over-provisioning.
All those “ingredients” combine to deliver over 6,000MB/s real-world speed with the highest reliability possible to satisfy the biggest storage performance appetite.
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 PCIe 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 (sold separately and coming soon).

Change Your Reality
Accelsior 4M2 offers performance gains in so many diverse ways that it will change the reality of how you use a storage solution:
  • 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.
  • Ensure augmented reality visualizations look life-like.
  • Change game levels seamlessly and play flight/driving/MMO games with continuously changing scenery and heavily personal preference modded games 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.
Includes SoftRAID: Easy and Complete Drive Management
Accelsior 4M2 includes SoftRAID software to help you manage your data like a pro. You can maximize drive space, get the fastest access speeds, and protect against drive failure with plug-and-play simplicity. SoftRAID’s easy setup makes it a breeze to create RAID volumes by helping you through the entire process. Just decide what you’re using your RAID volume for and how much space to allocate to it. It's that simple to create your preference of speed and/or redundancy attributes of your data volume. Learn more about SoftRAID.
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.



Brand:
OWC
Mac Compatibility:
  • Yes
Windows PC Compatibility:
  • YES
Warranty:
5 Year OWC Limited Warranty

Product Specifications:

OWC Part Number

  • SSDACL4M202T

macOS Compatibility

  • macOS 10.13 High Sierra
  • macOS 10.14 Mojave
  • macOS 10.15 Catalina

Windows Compatibility

  • Windows 10 32-bit Edition
  • Windows 10 64-bit Edition
  • Windows Server 2016

Other Requirements

  • Requires macOS 10.13.6 or later

RAID Support

  • Yes

RAID Management

  • Software RAID (SoftRAID)

Capacity

  • 2.0 TB

Formatted Capacity

  • 1863 GiB

Card Type

  • Full Height Half Length PCIe

Activity Light

  • Yes

PCIe Type

  • PCIe 3.0

PCIe Lanes

  • x8

Controller Chipset

  • ASMedia ASM2824

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

External Connectivity

  • None

Internal Connectivity

  • (4) NVMe 1.3 M.2 Slots (PCIe 3.0 x4)

Internal Connector Form Factor

  • M.2 - 2280 "M Key"

Performance

  • 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

Nonrecoverable Read Errors

  • 1 per 1016 bits read

TRIM Support

  • OS Dependent

Error Correction

  • Built-in ECC

Endurance

  • 800TB total bytes written (TBW), equal to 314 GB per day for 7 year

Certifications

  • CE
  • FCC

RoHS

  • Yes

Environment

  • Environmental (Operating)
    • Temperature (°F) 41° — 107°
    • Temperature (°C) 5° — 42°
    • Humidity 8% to 90% non-condensing
    • Altitude -304.8 m to 3,048.0 m (-1,000 ft to 10,000 ft)
  • Environmental (Non-Operating)
    • Temperature (°F) −40° — 149°
    • Temperature (°C) −40° — 65°
    • Humidity 5% to 95% non-condensing
    • Altitude -304.8 m to 12,192.0 m (-1,000 ft to 40,000 ft)

Dimensions

  • Height: 12.6 cm (5.0 in)
  • Width: 2.2 cm (0.9 in)
  • Length: 18.1 cm (7.1 in)

Weight

  • 381.0 g (0.84 lbs)

Accoustics

  • Idle (Typical) 0.0 bels
  • Seek (Typical) 0.0 bels

Notes

  • Data transfer rates will vary based on SSDs used, CPU speed, RAID setting, and PCIe version.
  • 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.
Manufacturer provided specifications for Other World Computing p/n SSDACL4M202T UPC#: 810586033176

Accelsior 4M2: Mac Pro Install Notes

Created on: December 30, 2019
Last updated: December 30, 2019

2019 Mac Pro Installs

Please note that the initial batch of Accelsior 4M2 drives have a heat sink that prevents the device from being properly installed in the 2019 Mac Pro. These models were given a specific part number that begins with OWCSSDACC4M2. Those models which will install normally on a 2019 Mac Pro were given the base part OWCSSDACL4M2 The part number groupings are shown below.

Part Numbers (Mac Pro 2010-2012 only + PC)

  • OWCSSDACC4M20GB
  • OWCSSDACC4M201T
  • OWCSSDACC4M202T
  • OWCSSDACC4M204T
  • OWCSSDACC4M208T

Part Numbers (also compatible with 2019 Mac Pro):

  • OWCSSDACL4M20GB
  • OWCSSDACL4M201T
  • OWCSSDACL4M202T
  • OWCSSDACL4M204T
  • OWCSSDACL4M208T

2010-2012 Mac Pro Installs

Additionally, certain PCIe install configurations are not recommended or supported. Specifically, when certain double-width GPUs are installed in the bottom x16 slot (default / recommended), and the Accelsior 4M2 is installed in the neighboring x16 slot, either the GPU's shroud or its fans can contact one or more screws (or PCBA components) on the bottom of the Accelsior 4M2, causing potential problems. For this reason the XFX RX 580 cards sold by OWC — such as OWCMP1012R580V — cannot be used in conjunction with the Accelsior 4M2 in the above-noted configuration; the Accelsior 4M2 would have to be installed in one of the x4 slots higher up the logic board, which would result in reduced SSD performance.

The following commonly used double-wide GPUs have also been sold by OWC in the past, have been tested with the Accelsior 4M2 in the above dual x16 configuration, and did not make contact with the fans or other critical card components. If each card is installed properly according to Apple's PCIe card recommendations for these Mac Pro models, these configurations should work.

  • Sapphire Radeon 7950
  • Gigabyte Radeon RX 580 Gaming 8G

This product is compatible with... Learn how to find your Mac's model ID
Mac Pro
Mac Pro Rack (Early 2020)
(January 2020)
Model ID: MacPro7,1
2.5GHz 28-Core
Install videos coming soon
Mac Pro
Mac Pro Rack (Early 2020)
(January 2020)
Model ID: MacPro7,1
2.7GHz 24-Core
Install videos coming soon
Mac Pro
Mac Pro Rack (Early 2020)
(January 2020)
Model ID: MacPro7,1
3.2GHz 16-Core
Install videos coming soon
Mac Pro
Mac Pro Rack (Early 2020)
(January 2020)
Model ID: MacPro7,1
3.3GHz 12-Core
Install videos coming soon
Mac Pro
Mac Pro Rack (Early 2020)
(January 2020)
Model ID: MacPro7,1
3.5GHz 8-Core
Install videos coming soon
Mac Pro
Mac Pro (Late 2019)
(December 2019)
Model ID: MacPro7,1
2.5GHz 28-Core
Install videos coming soon
Mac Pro
Mac Pro (Late 2019)
(December 2019)
Model ID: MacPro7,1
2.7GHz 24-Core
Install videos coming soon
Mac Pro
Mac Pro (Late 2019)
(December 2019)
Model ID: MacPro7,1
3.2GHz 16-Core
Install videos coming soon
Mac Pro
Mac Pro (Late 2019)
(December 2019)
Model ID: MacPro7,1
3.3GHz 12-Core
Install videos coming soon
Mac Pro
Mac Pro (Late 2019)
(December 2019)
Model ID: MacPro7,1
3.5GHz 8-Core
Install videos coming soon
Mac Pro
Mac Pro 4-Core (Mid 2010)
(July, 2010)
Model ID: MacPro5,1
2.8GHz, 3.2GHz
Mac Pro
Mac Pro 6-Core (Mid 2010)
(July, 2010)
Model ID: MacPro5,1
3.33GHz
Mac Pro
Mac Pro 8-Core (Mid 2010)
(July, 2010)
Model ID: MacPro5,1
2.4GHz
Mac Pro
Mac Pro 12-Core (Mid 2010)
(July, 2010)
Model ID: MacPro5,1
2.66GHz, 2.93GHz
Mac Pro
Mac Pro 4-Core (Mid 2012)
(June, 2012)
Model ID: MacPro5,1
3.2GHz
Mac Pro
Mac Pro 6-Core (Mid 2012)
(June, 2012)
Model ID: MacPro5,1
3.33GHz
Mac Pro
Mac Pro 12-Core (Mid 2012)
(June, 2012)
Model ID: MacPro5,1
2.4GHz, 2.66GHz, 3.06GHz
OWC Helios
OWC Mercury Helios 3S
Thunderbolt 3 PCIe
expansion chassis
3.5-inch Enclosures
AKiTiO Node Duo
3.5-inch Enclosures

Includes

  • (1) Accelsior 4M2
  • (1) SoftRAID
  • (1) Quick start guide

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