Designed for pro content creators, performance enthusiasts, and gamers, the 2TB Accelsior 1M2 NVMe PCIe 4.0 Internal SSD Storage Solution from OWC / Other World Computing into your desktop system's available PCIe x4, x8, or x16 slot. This low-profile Accelsior 1M2 PCI 4.0 x4 card is equipped with a high-performance 2TB Aura Ultra III PCIe 3.0 x4 SSD that delivers data transfer speeds of up to 3200 MB/s to support demanding workflows such as bandwidth-heavy video, audio, photography, design needs, and more. The drive is covered by an aluminum alloy heatsink with deeply grooved fins that silently cools the SSD to help prevent speed throttling, even during intensive use. The Accelsior 1M2 has also undergone extensive certification process to help ensure that it works with Mac Pro 2019, 2012, and 2010 computers as well as Windows systems. In the even that your system doesn't have an open or compatible PCIe slot but is Thunderbolt 3 compatible, the Accelsior 1M2 may be used in an external Thunderbolt 3 PCIe expansion chassis. Thanks to its plug-and-play design, you can install and operate the drive without needing any additional hardware or software drivers.

2TB Aura Ultra III PCIe 3.0 x4 SSD    Low-Profile PCIe 4.0 x4 Card    Data Transfers up to 3200 MB/s    Compatible with PCIe x16 and x8 Slots    Aluminum Alloy Heatsink    Bootable    Plug-and-Play Design    Slot Powered    Compatible with Thunderbolt 3 Enclosures    Windows and Mac Compatible

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.

At the heart of Accelsior 1M2's power is an OWC Aura Ultra III PCIe 3.0 x4 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.

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.

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.

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) at speeds up to 2800 MB/s.

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 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.

• macOS 14.x Sonoma
• macOS 13.x Ventura
• macOS 12.x Monterey
• macOS 11.x Big Sur
• macOS 10.15 Catalina
• macOS 10.14 Mojave
• macOS 10.13 High Sierra

• Windows 11
• Windows 10 64-bit Edition
• Windows Server 2016

Related Questions and Answers

Q: 1. The fastest slot I have available is a PCIe x4. Will this work and how serious a reduction in performance should I expect if it does?

A: The Accelsior is an x4 card, so unless it is PCIe 2.0, I would expect no slow downs at all.

Q: 2. Can this new WD 4TB SSD be used as an OS drive?

A: Yes, this drive may be used as an OS/Boot drive.

Q: 3. Is this WD Black SN850X compatible with the OWC Express 4M2 4-Slot M.2 NVMe SSD Enclosure?

A: Yes, the WD 2TB WD_BLACK SN850X Gaming Internal NVMe PCIe 4.0 SSD with Heatsink is compatible with the OWC Express 4M2, B&H # OWTB3EX4M2SL.

Q: 4. Does this contain 2 Gb cache?

A: The SanDisk 2TB Extreme M.2 NVMe PCIe 4.0 M.2 Internal SSD, B&H # SASX32TBG26, uses Western Digital's nCache™ 4.0 technology. However, the size of the cache isn't specified.

Q: 5. Is the Sabrent 1TB Rocket 2230 NVMe PCIe 4.0 M.2 Internal SSD compatible with Microsoft Surface Pro 9? Want to increase capacit

A: The Sabrent 1TB Rocket 2230 NVMe PCIe 4.0 M.2 Internal SSD is compatible with the Microsoft Surface Pro 9, but Microsoft advises customers not to attempt this operation without the help of a licensed technician.

Q: 6. I would like to buy and used in Malaysia, can the 5 years warranty applicable in Malaysia?

A: This WD 2TB WD_BLACK SN850X Gaming Internal NVMe PCIe 4.0 SSD, would come with a 5 year USA manufacturers warranty.

Q: 7. What heatsink would work best with the 4TB version?

A: For use within a PC, BH #BEMC1M2SC would be a good choice. For use inside a PlayStation 5 gaming console, BH #SASBPSHS would be recommended.

Q: 8. What raid configuration does it come with by default? Is the listed space the usable space or the space before you set up the raid?

A: The OWC 8TB Accelsior 4M2 comes unformatted and must be initialized using the SoftRaid software.

Q: 9. Confused abt 2 answers on 4M2 compatibility with SN850X w/heatsink.. 1 says it works & 1 says it doesn't, which is it?

A: The WD 2TB WD_BLACK SN850X Gaming Internal NVMe PCIe 4.0 SSD with Heatsink is not compatible with the OWC Express 4M2 4-Slot M.2 NVMe SSD Enclosure. I would recommend using the non heat sink version of the SN850X instead.

Q: 10. the slot available on the my motherboard is a PCI Express x16 slot, running at x4 (PCIEX4). Will this work and does the x4 speed significantly decrease the utility?

A: You need x8 or x16 PCIe 3.0 or 2.0 slot