OWC 4M2 Internal SSD Overview
Supercharge your compatible Mac Pro with the 16TB Accelsior 4M2 PCIe M.2 NVMe SSD from OWC / Other World Computing. Ready to meet your data-intensive, high-bandwidth needs, the Accelsior 4M2 installs into a full-height, half-length x8 or x16 PCIe 3.0 or 2.0 slot and uses 3D TLC synchronous NAND flash memory with advanced SLC caching and a Phison E12 controller. All these elements combine to deliver sequential read and write speeds of up to 6318 and 6775 MB/s respectively.
Accelsior 4M2 comes with SoftRAID software to help you manage your data. 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, walking you through the process of customizing the speed and redundancy settings of your data volume.
Key Features
Compatible Mac Pro 2019, 2012 & 2010, and select Windows PC towers
Installs into a full-height, half-length x8 or x16 PCIe 3.0 or 2.0 slot
16TB capacity for footage, images, files, and games
Up to 6318 and 6775 MB/s reads and writes in RAID 0
Includes SoftRAID software for creating, monitoring, and managing advanced RAID sets
Plug and play�no drivers needed
Silent cooling�finned heat sink cover for fanless operation
Compatible with macOS 10.13 High Sierra, macOS 10.14 Mojave, and macOS 10.15 Catalina
Compatible with Windows 10 32- & 64-bit and Windows Server 2016
Compatible with Akitio Node Duo and Node Lite
Suitable for data-intensive, high-bandwidth applications such as large format video editing, VR/AR/MR, high transactional & complex calculation applications, and extreme gaming
Benefits
Stream and edit high-resolution video and graphics files without glitches
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 lifelike
Change game levels seamlessly and play flight/driving/MMO games with continuously changing scenery and heavily personal-preference-modded games without micro-stuttering
![]()
UPC: 810586035415
In the Box
- OWC 16TB Accelsior 4M2 PCIe M.2 NVMe SSD
- Limited 5-Year Warranty
OWC 4M2 Internal SSD Specs
Performance
| Interface |
PCIe 3.0 x4 |
| Write Speed |
Sequential: 6775 MB/s |
| Read Speed |
Sequential: 6318 MB/s |
Physical
| Drive Type |
SSD |
| Form Factor |
M.2 2280 |
| Flash Controller |
Phison E12 |
| Flash Memory Type |
Synchronous 3D NAND |
| SMART Support |
Yes |
| TRIM Support |
Yes
|
Reliability / Data Integrity
| Endurance (Total Bytes Written) |
380 TB |
| Non-Recoverable Read Errors per Bits Read |
1 in 1016 |
Environmental
| Operating Temperature |
41 to 107°F / 5 to 41°C |
| Storage Temperature |
-40 to 149°F / -40 to 65°C |
| Operating Humidity |
8 to 90% |
| Storage Humidity |
5 to 95% |
| Operating Altitude |
-1,000 to 10,000' / -304.8 to 3048 m |
| Storage Altitude |
-1,000 to 40,000' / -304.8 to 12,192 m |
| Chipset |
ASMedia ASM2824 |
General
| Certifications |
CE, RoHS, as per Manufacturer |
| Dimensions (W x H x D) |
0.9 x 5 x 7.1" / 2.29 x 12.7 x 18.03 cm |
| Weight |
0.84 lb / 381 g |
| Warranty Length |
Limited 5-Year Warranty |
Packaging Info
| Package Weight |
1.345 lb |
| Box Dimensions (LxWxH) |
9.3 x 6.4 x 3.1" |
All product and company names are trademarks™ or registered® trademarks of their respective holders. Use of them does not imply any affiliation with or endorsement by them.
