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Sonnet M.2 8x4 Silent Gen4 PCIe Card

For Release: August 15, 2023

For more information, please contact:

Martin Muggee
Marketing Communications Manager


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  IRVINE, Calif. — August 15, 2023

Sonnet Announces PCI Express® 4.0 Adapter Card Featuring Eight NVMe SSD Slots and Silent Operation

x16 PCIe® Card Fits in Single-Width Card Space, Delivers Up to 30,000 Mb/s of High-Performance Storage, Ideal for Use in Any Computer With PCIe Gen4 Slots

What’s New:
Sonnet Technologies today announced the Sonnet M.2 8x4 Silent Gen4 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 PCIe card slot. The full-height, full-length, single-width x16 PCIe 4.0 card features eight NVMe M.2 SSD slots that support the installation of Gen4 (and Gen3) PCIe SSDs.

What It Does:
The Sonnet M.2 8x4 Silent Gen4 PCIe Card enables users to mount eight M.2 NVMe PCIe SSDs (sold separately) into a single x16 PCIe card slot; using today’s highest-capacity SSDs, up to 64TB of storage capacity may be installed. Operating system RAID 0, RAID 1, RAID 10, and JBOD configurations are supported, providing users with flexibility in configuring the SSDs for the best performance or data safety, or both.

Why It’s Important:
For users who require ultra-high-speed data transfer speeds for a smooth workflow and need added storage capacity for their computer — such as video editors working with 6K and greater resolution footage — an NVMe M.2 SSD-based upgrade is essential. Many computers do not include slots to support installing M.2 SSDs directly but do include PCIe expansion card slots. Other computers — such as the new Apple® Mac Pro® with Apple silicon — use proprietary SSDs, limiting the maximum storage capacity natively supported. With the Sonnet M.2 8x4 Silent Gen4 PCIe Card installed, a user can mount up to eight high-capacity SSDs in a single PCIe card slot for instant-access media storage or for use as an incredibly fast scratch disk.

How It’s Distinctive:
Compatible with macOS®, Windows®, and Linux®, the Sonnet M.2 8x4 Silent Gen4 PCIe Card features a high-performance 48-lane PCIe 4.0 switch that provides 16 lanes of PCIe bandwidth to installed SSDs, ensuring the best simultaneous performance possible from four to eight SSDs. As a result, when installed in a new Mac Pro — which is equipped with PCIe 4.0 card slots — the Sonnet card can support sustained transfer speeds of up to 30,000 MB/s read and 25,000 MB/s write, respectively, with four or more SSDs formatted as a RAID 0 volume. To support their sustained high performance — most importantly during large file transfers — the card’s passive heatsink effectively prevents thermal throttling, enabling SSDs to maintain sustained peak performance without relying on fans that can get loud. (Thermal throttling is an SSD protection feature that prevents them from overheating by choking their performance until they cool down.)

When You Can Get It:
The Sonnet M.2 8x4 Silent Gen4 PCIe Card (part number FUS-SSD-8X4-E4S) is available now from Sonnet and channel partners worldwide at the suggested retail price of $799.99.

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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 a broad variety of docks, pro media readers, and network interface 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. Due to Sonnet’s Thunderbolt Technology expertise, it has become a leading designer/manufacturer of ODM boards which enable the integration of Thunderbolt ports into third-party products. For 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

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