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.
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.
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.
Thunderbolt 3 PCIe Expansion Chassis Model # AKT3N2AA0002Y
Akitio Node Lite
OWC Part Number
macOS 10.13 High Sierra
macOS 10.14 Mojave
macOS 10.15 Catalina
Windows 10 32-bit Edition
Windows 10 64-bit Edition
Windows Server 2016
macOS requires 10.13.6 or later
Software RAID (SoftRAID)
Full Height Half Length PCIe
NAND Flash Components
Toshiba Synchronous Triple-Level Cell (TLC) 3D NAND Flash
Standard attributes supported
Native Command Queuing (NCQ)
Up to 32 simultaneous commands
(4) NVMe 1.3 M.2 Slots (PCIe 3.0 x4)
Internal Connector Form Factor
M.2 - 2280 "M Key"
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
1665TB total bytes written (TBW), equal to 652 GB per day for 7 years
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)
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)
Height: 12.6 cm (5.0 in)
Width: 2.2 cm (0.9 in)
Length: 18.1 cm (7.1 in)
381.0 g (0.84 lbs)
Idle (Typical) 0.0 bels
Seek (Typical) 0.0 bels
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 on one non-RAID drive or as a software RAID (SoftRAID or Apple RAID) depending on MacOS version and system configuration.
Manufacturer provided specifications for Other World Computing p/n SSDACL4M204T UPC#: 810586033183
Australian Owned Business
Macfixit Australia is an Australian owned and operated business based in Melbourne, Victoria and we've been operating since 2005.
Fast Flat Rate Shipping on all orders
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.
100% Satisfaction Guaranteed
We fully guarantee all of our products. If for some reason you are not happy with any item you purchase from us you may return it for a refund (see Return Policy).
We do NOT sell or trade our customer information
Macfixit Australia respects your privacy. We never rent, sell or trade your contact information such as your name, address, phone# or e-mail address.
Convenient and Secure Shopping
All items on this website can be purchased safely online using our secure shopping cart. Security is provided by the best internet commerce technology available. We use Symantec Norton as our SSL (Secure Socket Layer) digital certificate provider, allowing our customers the strongest certificate services available. Our website is also scanned by McAfee Secure daily. Every McAfee SECURE certified site is tested and certified to be free of malware, viruses, phishing attacks.
Customer Reviews Gold Stars
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At Macfixit Australia) we’re 100% committed to serving our customers. We check phone and e-mail messages throughout the day and, in most cases we respond within minutes of receiving them. Please feel free to contact our Customer Service Department with any questions at 03 9329 4343 Mon-Fri, 10am to 5.30pm (Melbourme, Victoria Time), or e-mail us under this link.
Our goal is to provide you with a consistently superior customer experience—whether at the initial purchase, during the shipping of your product and during the course of usage of your product. The Customer Guarantee lets you know what you can and should expect from Macfixit Australia —and what we’re doing to hold ourselves accountable every day.
We make the following guarantees:
1. We will give you a 30-day, money-back guarantee on all our products. This means you can test drive the product in the convenience of your home. This is of course in addition to the standard manufacturer replacement warranties.
If your order contains a faulty product or a product incorrectly sent, we will of course take back the product and refund your money or send you a replacement product.
If you’re not satisfied and wish to return a product for any other reason, you can do so in the first 30 days and get your money back. Simply return all items in good working order and in undamaged original packaging and we’ll refund the cost of the product.
2. We will treat you with courtesy and respect.
3. We will answer your questions at your convenience.
4. We will quickly address any problem you experience.
You can contact us regarding any order/product related issue by calling 03 9329 4343 or emailing us via our online Contact Us page
If you experience a faulty product or an item that has been incorrectly supplied, we promise to rectify the issue as quickly as possible.
Every Macfixit Australia employee is dedicated to meeting the commitments above and to exceeding your expectations. We are working very hard to serve you better and listen carefully to your feedback. If you have any thoughts or ideas about this Guarantee or about your experience with us, we invite you to share them with us by sending us an e-mail. We take all feedback very seriously.