Sonnet M.2 4x4 PCIe Card (Silent)
Install up to Four M.2 NVMe SSDs into a PCIe Card Slot

Sonnet M.2 4x4 PCIe Card (Silent)

Four M.2 NVMe SSD Slots on a PCIe 3.0 x16 Card • Add your own SSDs

M.2 NVMe SSDs sold separately
Add up to 32TB of SSD Storage!
Ultra-speed Data Transfers
If you need to add internal storage to your computer and ultra high-speed data transfers are critical to your work, you need an NVMe SSD-based upgrade. Individually, M.2 NVMe PCIe SSDs offer tremendous performance, but Sonnet’s M.2 4x4 PCIe Card enables you to mount up to four of them into a single x16 card slot and combine their performance. No matter how you use it, this card can transform the way you work.
2019 Mac Pro
2019 Mac Pro®
Add up to 32TB of blazing-fast SSD storage in a single x16 PCIe slot.
Classic Mac Pro
Mac Pro 5,1
Create an incredibly fast 1-SSD boot drive + 3-SSD RAID 0 set (and later migrate to 2019 Mac Pro).
Windows PC Tower
Windows® or Linux® Computer
Create a media storage or scratch drive.
Echo Express III-D Thunderbolt Expansion System with MacBook Pro
Thunderbolt™ Expansion System
Connect four SSDs to your computer via a single cable.
RAID 0 Diagram
Mac Pro RAID 0 Performance
Install the M.2 4x4 PCIe card with your SSDs into your 2019 Mac Pro to achieve superior storage performance. If you’re one of the many still using 2010 or 2012 Mac Pro, install the Sonnet card plus SSDs to obtain performance you never thought possible!
2019 Mac Pro Speed ChartsClassic Mac Pro Speed Charts
Performance based on ATTO Disk Benchmark (available on the Apple® App Store) test results with Samsung® 970 EVO Plus 1TB SSDs with 64MB transfer size. See our M.2 4x4 Performance PDF for additional benchmarks and details.
Full Performance Design – Sonnet Advantages
Sonnet’s M.2 4x4 PCIe Card is a full-height, full-length PCIe 3.0 card with a 16-lane (x16) interface, designed to support full performance from four SSDs. Unlike “similar” adapter cards, Sonnet's M.2 4x4 card features:
x16 PCIe Bridge Icon
x16 PCIe Bridge

Devotes four lanes of PCIe 3.0 bandwidth to every SSD you install (instead of limiting the x4 bandwidth to two SSDs at a time)

Self-contained Icon

Card doesn’t require a specific motherboard to operate or specific SSDs to support RAID features – no PCIe bifurcation required

Universal Compatibility Icon
Universal Compatibility

Mac®, Windows, and Linux compatible

M.2 PCIe Support Icon
M.2 PCIe SSD Support

Works with a wide variety of M.2 NVMe PCIe SSDs; now also supports double-sided SSDs

Key Features

Add up to 32TB Ultra-Fast Storage Icon

Add up to 32TB Ultra-Fast Storage

Mounts up to four M.2 NVMe SSDs (sold separately) in an x16 PCIe slot; also supports double-sided SSDs.

High-Performance PCIe Interface Icon

High-Performance PCIe Interface

PCI Express 3.0 x16 host bus interface plus x16 PCIe bridge; four lanes of PCIe 3.0 bandwidth devoted to each installed SSD.

Superior Performance Icon

Superior Performance

Achieve sustained RAID 0 speeds up to 11,700 MB/s.

RAID Support Icon

RAID Support

Supports macOS, Windows, and Linux RAID 0, 1, and 5 (macOS RAID 5 support requires SoftRAID software, sold separately).

macOS Boot Support Icon

macOS Boot Support

Supports booting from a single (non-RAIDed) attached SSD.

No Thermal Throttling Icon

No Thermal Throttling

Custom silent-operating cooling solution enables installed SSDs to maintain high performance during very large file transfer operations.

Optimized for Thunderbolt Icon

Optimized for Thunderbolt

Use in Sonnet Thunderbolt expansion systems to connect up to four SSDs through one cable with performance up to 2800 MB/s.

NVMe Compliant Icon

NVMe Compliant

No drivers required.

S.M.A.R.T. Operation Icon

S.M.A.R.T. Operation

Supports S.M.A.R.T. (Self-Monitoring, Analysis and Reporting Technology) data reporting.

Free Lifetime Tech Support
Adobe After Effects Logo

Adobe After Effects User?

Are you an Adobe® After Effects user? Imagine being able to perform 4Kp60 work in 32-bit linear, or even 4Kp24 with high channel count EXRs (or effects in 8K) where your computer’s onboard storage couldn’t keep up! Sonnet's M.2 4x4 PCIe Card makes it possible.

Classic Mac Pro Icon

Mac Pro 5,1 User?

Mac Pro 5,1 users can install macOS® on one SSD to create an incredibly fast boot drive and create a RAID 0 set with the other installed SSDs and still obtain blazing-fast performance. Sonnet’s M.2 4x4 PCIe Card makes it possible.

Screenshot of Sonnet M.2 4x4 PCIe Card Featured at Apple's WWDC Conference
Sonnet M.2 4x4 PCIe Card featured at Apple's WWDC Conference
Silent and Cool Running
No Slowdowns. No Thermal Throttling.
SSDs heat up significantly when performing very large file transfers. This presents a problem for most competing cards, as they provide inadequate cooling for this task and allow installed SSDs to activate their built-in thermal throttling protection feature — thermal throttling drastically cuts SSDs’ performance while allowing them to cool. Sonnet designed the M.2 4x4 PCIe Card with a silent cooling solution to prevent thermal throttling, enabling SSDs to maintain their high performance at all times.
Thunderbolt Icon

Thunderbolt Port? Connect Four SSDs Through One Cable

Got a Thunderbolt connection, but no PCIe card slot? Sonnet’s M.2 4x4 PCIe Card is ideal for use in one of our Thunderbolt expansion systems that accept full-length PCIe cards. The combo enables you to add up to four SSDs to any Mac (M1, M2, M1 Pro, M1 Max, M1 Ultra, Intel), Windows, and Linux computer with Thunderbolt ports.

S.M.A.R.T. Icon

Simple and S.M.A.R.T

Integrating a Sonnet M.2 4x4 PCIe Card into your system is easy — NVMe compliance ensures the necessary drivers are installed automatically. The M.2 4x4 uses the operating systems’ built-in drive formatting utilities to format the SSDs. SSD health monitoring is supported through S.M.A.R.T. (Self-Monitoring, Analysis and Reporting Technology) data reporting, too.

See Tech Specs for footnotes.
Product specifications and information subject to change without notice. Computer hardware and accessories featured in photos that are not included with product are shown for illustration purposes; items sold separately.

Sonnet M.2 4x4 PCIe Card (Silent)