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Sonnet Announces PCI Express® 3.0 Adapter Card Featuring Two NVMe SSD Slots, 16-Lane PCIe® Bridge

Low-Profile x8 PCIe Card Fits in Small Card Slot Spaces

IRVINE, Calif. — June 23, 2022
What’s New:
Sonnet Technologies today announced the Sonnet M.2 2×4 Low-Profile PCIe® Card, the latest offering in the company’s popular family of high-performance storage adapter cards that enable the installation of multiple SSDs into a computer’s or Thunderbolt expansion system’s PCIe card slot. The low-profile, half-length PCIe 3.0 card features two M-keyed NVMe M.2 SSD slots that support the installation of M.2 form factor NVMe PCIe SSDs.

What It Does:
The Sonnet M.2 2×4 Low-Profile PCIe Card enables users to mount two M.2 NVMe 2280 PCIe SSDs (sold separately) into almost any expansion card space with an available x8 or x16 PCIe card slot; using today’s highest-capacity SSDs, up to 16TB of storage capacity may be installed. RAID 0, RAID 1, and JBOD configurations are supported, providing users with flexibility in configuring the SSDs for best performance or data safety, or both.

Why It’s Important:
For users who need to add internal storage to their computer and require ultra-high-speed data transfer speeds for a smooth workflow — such as video editors working with 6K and greater resolution footage — an NVMe M.2 SSD-based upgrade is ideal. Many computers do not include slots to support installing M.2 SSDs directly but do include PCIe expansion card slots. With Sonnet’s M.2 2×4 Low-Profile PCIe Card installed, a user can mount two SSDs in a single PCIe slot — with no cables, adapters, or mounting trays required — for instant-access media storage or as a high-performance scratch disk. For users whose computers lack PCIe card slots — such as notebooks, mini, and all-in-one desktops — but include Thunderbolt ports, installing the Sonnet card into one of Sonnet’s multi-slot Echo™ Thunderbolt to PCIe card expansion systems connects the M.2 2×4 card’s dual SSD slots through a single cable.

How It’s Distinctive:
Compatible with macOS®, Windows®, and Linux® operating systems, The Sonnet M.2 2×4 Low-Profile PCIe Card requires only a low-profile card space and includes both full-height and low-profile PCIe brackets — so it is ideal for use in most any desktop tower, mini workstation or server computer, or Thunderbolt to PCIe card expansion system with an available x8 or x16 PCIe slot. Because the Sonnet card employs a high-performance 16-lane PCIe 3.0 bridge chip, it doesn’t require specific SSDs or a particular motherboard to operate, nor PCIe bifurcation to support RAID features. Installed in a computer’s PCIe 3.0 or 4.0 card slot, the Sonnet card supports outstanding storage performance — a single SSD installed on the card can deliver data transfers up to 3,400 MB/s — with two SSDs installed and configured as a RAID 0 set, sustained transfers up to 6,600 MB/s are supported. To support their sustained high performance, the card’s integrated heatsink silently cools SSDs to eliminate the need for them to “thermal throttle” — an SSD protection feature that prevents overheating by choking performance until they cool down.

When You Can Get It:
The Sonnet M.2 2×4 Low-Profile PCIe Card (part number FUS-SSD-2×4-E3S) will be available the last week of June from Sonnet and soon after from channel partners worldwide at the suggested retail price of $199.99.

More Context:×4-ssd-low-profile-pcie-card |

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About Sonnet Technologies
Sonnet Technologies, Inc. is a leading provider of Thunderbolt™ technology products and network, storage, and other interface cards for pro users in the audio, video, and broadcast industries. Sonnet’s array of Thunderbolt products includes docks and hubs, pro media readers, and network and display adapters, plus PCIe® card expansion systems that enable the use of pro audio I/O and DSP cards, pro video capture and transcoding cards, GPU cards, and other high-performance PCIe cards with computers with Thunderbolt ports. For more than 35 years Sonnet has pioneered and brought to market numerous innovative and award-winning products that enhance the performance and connectivity of Mac®, Windows®, and Linux® computers. More information is available at

All trademarks appearing herein are the property of their respective owners.

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Link to Photos:
Image Caption: Sonnet M.2 2×4 Low-Profile PCIe® Card

Link to Photos:
Image Caption: Sonnet M.2 2×4 Low-Profile PCIe® Card with Heatsink Removed and SSDs Installed (Sold Separately)

Link to Photos:
Image Caption: Sonnet M.2 2×4 Low-Profile PCIe® Card Installed in 2019 Mac Pro® Computer

Link to Photos:
Image Caption: Sonnet M.2 2×4 Low-Profile PCIe® Card Installed in Echo™ Express SE IIIe Thunderbolt™ to PCIe Card Expansion System (Sold Separately)

Video Link:×4-ssd-low-profile-pcie-card/techspecs.html – videos
Video Caption: Sonnet M.2 2×4 Low-Profile PCIe Card Product Overview

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