Low-profile Power Performer - Add Up to 16TB NVMe SSD Storage
Sonnet M.2 2x4 Low-profile PCIe Card - Add up to 16TB NVMe SSD Storage
Power Performer
Sonnet M.2 2x4 Low-profile PCIe Card
Two M.2 NVMe SSD Slots on a Low-profile x8 PCIe Card
Add Your Own M.2 SSDs
compatible with Mac® | Windows® | Linux®
compatible with Mac®, Windows,®
and Linux®
Add up to 16TB of SSD Storage!
Super High-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 NVMe SSD storage. While a single M.2 NVMe PCIe SSD offers tremendous performance — 10x more than that of a spinning drive — Sonnet’s M.2 2x4 Low-profile PCIe Card enables you to mount two of them into a single x8 card slot and combine their performance. No matter how you use it, this card can transform the way you work or play.
SSDs sold separately
Two NVMe SSD Slots Icon
Two M.2 NVMe Slots
Add up to 16TB of storage with your own high performance M.2 NVMe SSDs
Super High-speed Icon
Super High-speed Data Transfers
NVMe SSDs offer 10x (or more) performance of spinning drives
Mac Pro 2019 and Thunderbolt Expansion System Icons
Low Profile – Fits Anywhere
Install in a computer or Thunderbolt expansion system x8 PCIe slot

RAID 0 Performance

Install the M.2 2x4 Low-profile PCIe Card with your SSDs into your computer with PCIe 3.0 or 4.0 card slots, and then configure them as a RAID 0 set to obtain data transfers up to 6600 MB/s.
Up to 3000 MB/s for Single SSDs
Up to 6000 MB/s for a RAID 0 Set
Performance will vary based on the type and number of SSDs used, plus the host computer’s CPU speed
Sonnet M.2 2x4 Low Profile PCIe Card Installed Inside a Mac Pro 2019Sonnet M.2 2x4 Low Profile PCIe Card Installed Inside a Mac Pro 2019
Front of PC Tower
Desktop Towers
Front of Mac Pro 2019 Rackmount Server
Rackmount and Server Computers
MacBook Air M2 with Sonnet Echo Express SE IIIe
Thunderbolt Expansion Systems
Easy Fit

Install in an x8 PCIe Card Slot

Sonnet’s M.2 2x4 Low-profile PCIe Card fits in almost any card space with an available x8 PCIe card slot, whether in a desktop tower, mini workstation, or server computer; or even in a Sonnet Thunderbolt expansion system. Included full-height and low-profile brackets enable a secure fit wherever you install it.
Overhead View of Sonnet M.2 2x4 PCIe Card Along with Included Low-profile Bracket
Full Performance Design

Sonnet Advantages

Sonnet’s M.2 2x4 Low-profile PCIe Card uses an 8-lane (x8) interface designed to support full performance from two SSDs. The M.2 2x4 card features:
PCIe 3.0 Bridge Chip Icon
16 Lane PCIe Bridge
With an 8 lane PCIe connection to the host, the high-performance PCIe 3.0 bridge chip devotes four lanes of PCIe bandwidth to each SSD to support maximum performance
Self-contained RAID 0 Illustration
The card’s SSD RAID configuration support doesn’t require a specific motherboard or SSDs to operate — no PCIe bifurcation required
Supports Mac, Windows, and Linux Icon
Universal Compatibility
Compatible with Mac, Windows, and Linux computers with an x8 PCIe slot
M.2 NVMe SSD Boards
Broad M.2 NVMe SSD Support
Works with a wide variety of M.2 2280 NVMe PCIe SSDs

Key Features

16TB Icon

Add up to 16TB of Ultra-fast Storage

Mounts one or two M.2 NVMe SSDs (sold separately) in an x8 PCIe slot.

Low and Full-height Bracket Icon

Fits in Almost Any Card Space

Low-profile card includes full-height (pre-attached) and low-profile PCIe brackets; fits in almost any computer or Thunderbolt expansion system with an available x8 PCIe slot.

High-performance Icon

High-performance PCIe Interface

PCI Express 3.0 x8 host bus interface plus connects four lanes of PCIe 3.0 bandwidth to each installed SSD.

Superior Performance Icon

Superior Performance

Achieve sustained single SSD speeds up to 3400 MB/s, RAID 0 speeds up to 6600 MB/s.

macOS Boot Support Icon

macOS Boot Support

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

Thermal Throttling Icon

No Thermal Throttling

Card design enables installed SSDs to maintain high performance during very large file transfer operations.

Thunderbolt Logo Icon

Optimized for Thunderbolt

Use in Sonnet Thunderbolt expansion systems to connect two 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
Man Working Behind Monitor Writing Down SSD Ideas In Notebook
SSD Ideas

macOS Boot Supporter. Applications’ Scratch Disk. Time Machine Backup.

Mac users can install macOS® on one SSD to create a fast boot volume, and then use the other installed SSD for file storage; as a super-fast plug-in, media storage, or scratch disk; or even for use as a Time Machine® backup volume.
NVMe SSD Ideas - Boot Volume on SSD 1 and Scratch Disk or Backup on SSD 2
SSDs sold separately
Silent and Cool Running

No Slowdowns. No Thermal Throttling. Full Performance.

SSDs heat up significantly while performing very large file transfers and will protect themselves from overheating by “thermal throttling” — a feature that drastically cuts SSDs’ performance until they cool off to a safe level. The Sonnet M.2 2x4 Low-profile PCIe Card’s silent SSD cooling solution works to keep SSDs always cool enough to eliminate the need for thermal throttling and enables your SSDs to always maintain their highest potential performance.
Group of Mac and Windows Thunderbolt ComputersGroup of Mac and Windows Thunderbolt ComputersThunderbolt Port Icon
Thunderbolt Port?

Connect Two SSDs Through One Cable

Got a Thunderbolt connection, but no PCIe card slot? Sonnet’s M.2 2x4 Low-profile PCIe Card is ideal for use in any one of Sonnet’s Thunderbolt expansion systems. The combo enables you to add one or two SSDs to any Mac (M1, M2, M1 Pro, M1 Max, M1 Ultra, Intel®), Windows, or Linux computer with Thunderbolt ports.
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 2x4 Low-profile PCIe Card into your system is easy — NVMe compliance ensures the necessary drivers are installed automatically. The M.2 2x4 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.
Sonnet M.2 4x4 and McFiver PCIe Cards
Do You Need Something More?

More SSDs? More Connectivity?

Do you need to install more than two M.2 NVMe SSDs? Check out Sonnet’s M.2 4x4 PCIe Card with double the capacity and double the potential performance of the M.2 2x4 card. Or do you need more connectivity in addition to dual SSD support? Look at the McFiver™ PCIe Card; it offers the same performance of the M.2 2x4 card plus two 10Gbps USB-C® ports and a 10Gb Ethernet port.

Learn More

Sonnet M.2 2x4 Low-profile PCIe Card