Supports the New Mac Pro® (2023)
Warp Speed NVMe - Add Up to 64TB NVMe SSD Storage
Warp Speed NVMe
Warp Speed NVMe
Sonnet M.2 8x4 Silent Gen4 PCIe Card
Eight M.2 NVMe SSD Slots on a PCIe 4.0 x16 Card
Add Your Own M.2 NVMe SSDs
compatible with Mac® * | Windows® | Linux®
compatible with Mac®, Windows,® and Linux®
Add up to 64TB of SSD Storage In One Card Slot!
Ultra-fast Gen4 SSD Data Transfers
Speed or capacity? Not too long ago, you had to make a choice between the two. The problem is, for many professional workflows, both are critical. Everyone knows M.2 NVMe PCIe SSDs offer great performance, but limited capacity. Hard drives offer great capacity, but very slow speeds by comparison. What if you could create increased SSD capacity? We make it possible — the Sonnet M.2 8x4 Silent Gen4 PCIe® Card enables you to mount up to eight NVMe SSDs into a single x16 PCIe card slot and combine their capabilities for ultra-performance. This card can transform your workflow.
SSDs sold separately
Two NVMe SSD Slots Icon
Eight M.2 NVMe Slots
Add up to 64TB of storage with your own high performance M.2 NVMe SSDs
Super High-speed Icon
Blazing Transfers
Get amazing performance from Gen 4 SSDs
Mac Pro 2019 and Thunderbolt Expansion System Icons
For Professional Workfows
Install in a computer or Thunderbolt expansion system x16 PCIe slot
Sonnet M.2 8x4 Silent Gen4 PCIe Card Installed in x16 PCIe Slot
One Slot. One Card. 64TB of Fast NVMe Storage.
Front of PC Tower
Mac Pro® Computers*
Up to 64TB of blazing-fast SSD Storage:
2023 M2* – Up to 30,000 MB/s
2019 Intel – Up to 14,000 MB/s
Front of Mac Pro 2019 Rackmount Server
Windows® or Linux® Computer
Create an incredibly fast media storage or scratch drive.
MacBook Air M2 with Sonnet Echo Express SE IIIe
Thunderbolt™ Expansion Systems
Connect eight SSDs to your computer via a single cable, with maximum performance of 2800 MB/s.

Superior Storage Performance

RAID 0 Eight SSDs Configuration Diagram

Gen 4 PCIe Slot RAID 0 Performance

Install the M.2 8x4 Silent Gen4 PCIe card with your SSDs into your computer’s x16 PCIe 4.0 slot to achieve superior storage performance with four SSDs configured as RAID 0.
Up to 30,000 MB/s Read Speeds
Up to 18,000 MB/s Write Speeds
Performance will vary based on the type and number of SSDs used, the host computer’s CPU speed, and PCIe card slot architecture

Gen 3 PCIe Slot RAID 0 Performance

Install the M.2 8x4 Silent Gen4 PCIe card with your SSDs into your computer’s x16 PCIe 3.0 slot to achieve outstanding storage performance with four SSDs configured as RAID 0.
Up to 14,000 MB/s Read Speeds
Up to 12,000 MB/s Write Speeds
Performance will vary based on the type and number of SSDs used, the host computer’s CPU speed, and PCIe card slot architecture
Overhead View of Sonnet M.2 2x4 PCIe Card Along with Included Low-profile Bracket
Sonnet Max-Performance Design

Sonnet Advantages

Sonnet M.2 8x4 Silent Gen4 PCIe Card is a full-height, full-length PCIe 4.0 card with a 48-lane PCIe 4.0 switch and x16 interface, designed to support maximum performance. Sonnet M.2 8x4 card features:
PCIe 3.0 Bridge Chip Icon
48-lane PCIe 4.0 Switch
x16 slot bandwidth is available to all x4-connected SSDs, facilitating maximum speed with any combination of M.2 SSDs used
Self-contained RAID 0 Illustration
Self-contained
This Sonnet card doesn’t require a specific motherboard to operate or specific SSDs to support RAID features – no PCIe bifurcation required
Supports Mac, Windows, and Linux Icon
Universal Compatibility
Compatible with Mac* , Windows, and Linux computers with an x16 PCIe slot
M.2 NVMe SSD Boards
Broad M.2 NVMe SSD Support
Works with a wide variety of M.2 NVMe Gen4 and Gen3 SSDs

Key Features

64TB Icon

Add up to 64TB Ultra-fast Storage

Mounts up to eight 8TB M.2 NVMe Gen4 or Gen3 SSDs (sold separately) in an x16 PCIe slot. Higher-capacity SSDs will be supported when available.

High Performance PCIe Card Icon

High-performance PCIe Interface

PCI Express 4.0 x16 host bus interface plus x48 PCIe 4.0 switch; x16 slot bandwidth is available to all x4-connected SSDs.

High-performance Icon

Superior Performance

Achieve sustained four SSD RAID 0 speeds up to 30,000 MB/s.

Superior Performance Icon

RAID Support

Supports macOS, Windows, and Linux RAID 0, 1, and 10 support.

macOS Boot Support Icon

macOS* Boot Support

Supports booting from single (non-RAIDed) attached SSDs.

Thermal Throttling Icon

No Thermal Throttling

Custom silent cooling solution enables installed SSDs to maintain consistent high performance during very large file transfer operations without the use of fans.

Thunderbolt Logo Icon

Thunderbolt Compatible

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

NVME Compliant Shield 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 icon.

Sonnet Support

Founded in 1986 in Orange County, Southern California — the vibrant hub of technology and engineering south of Silicon Valley — Sonnet has been at the forefront of innovation. Over the years, we've developed numerous award-winning products that enhance performance and connectivity for Mac, Windows, and other industry-standard computers. Many of our team members have been with us for over two decades, providing us with extensive expertise about our current and past offerings. If you ever need technical support for any of our products, don’t hesitate to reach out; we’re here to assist you.

Man Working Behind Monitor Writing Down SSD Ideas In Notebook
Adobe After Effects User?

Pro SSD Storage Performance

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 M.2 8x4 Silent Gen4 PCIe Card makes it possible.
Group of Mac and Windows Thunderbolt ComputersGroup of Mac and Windows Thunderbolt ComputersThunderbolt Port Icon
Thunderbolt Port?

Connect Eight SSDs Through One Cable

Got a Thunderbolt connection, but no PCIe card slot? Sonnet M.2 8x4 Silent Gen4 PCIe Card is ideal for use in our Echo I Desktop PCIe Expansion System. The combo effectively enables you to add up to eight SSDs to any Mac (M series or Intel), Windows, or Linux computer with Thunderbolt ports.
Echo I Desktop with M.2 8x4 Silent Gen4 PCIe Card
Man Working Behind MacBook Air M2 with S.M.A.R.T. Badge Icon Over ImageMan Working Behind MacBook Air M2 with S.M.A.R.T. Badge Icon Over Image
Simple and S.M.A.R.T.

Easy System Integration

Integrating a Sonnet M.2 8x4 Silent Gen4 PCIe Card into your system is easy — NVMe compliance ensures the necessary drivers are installed automatically. The M.2 8x4 uses your computer’s operating system’s 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.

Sonnet M.2 8x4 Silent Gen4 PCIe Card