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For Release: May 27, 2020

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Martin Muggee
Marketing Communications Manager


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  IRVINE, Calif. — May 27, 2020

Sonnet Announces Internal Drive Mount for 2019 Mac Pro®, Supports Up to Three SATA Drives of the User’s Choice

What’s New:

Sonnet Technologies today announced the Fusion™ Flex J3i three-drive mounting system for the 2019 Mac Pro®, the company’s latest internal storage enhancement product for the most powerful computer offering from Apple®. The Fusion Flex system comprises a custom mounting bracket and plates that support the installation of 3.5-inch SATA hard disk drives (HDDs) and 2.5-inch SATA SSDs (HDDs and SSDs sold separately), mounting hardware, and power and data cables. The assembled system installs neatly and securely in the expansion bay provided inside the computer and connects the mounted drives to the provided ports.

What It Does:
The Fusion Flex J3i system enables users to install up to three SATA drives, mounting two 3.5-inch HDDs plus one 2.5-inch SSD, or three 2.5-inch SSDs inside the 2019 Mac Pro — adding up to 36TB of storage using today’s highest-capacity SATA drives. The Fusion Flex attaches securely to mount points near the computer’s PCIe slots, while the installed drives are connected to the computer’s internal USB and SATA ports.

Why It’s Important:
For users who don’t require the speed of NVMe SSDs, 3.5-inch SATA HDDs and 2.5-inch SATA SSDs are cost-effective choices for adding a lot of storage capacity. For 2019 Mac Pro users, available high-capacity internal storage options have been limited in choice and configurability and force users to accept preconfigured capacity limits and drive type. With the Fusion Flex J3i, Sonnet enables users to choose the drives that best suit their needs, whether maximum storage capacity or increased capacity with faster performance plus greater reliability is the ultimate objective.

How It’s Unique:
Products similar to the Fusion Flex J3i support only two 3.5-inch SATA drives but already include one preinstalled HDD, restricting choice, capacity, and performance. With mounting support for three drives — 2.5-inch SSDs and 3.5-inch HDDs, all chosen by the user — Sonnet’s Fusion Flex J3i provides users maximum capacity and performance and flexibility for adding storage.

When You Can Get It:
The Fusion Flex J3i (part number FUS-FLEX-J3) will be available by June 15 at the suggested retail price of $199.99.

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About Sonnet Technologies
Sonnet Technologies Inc. is a leading provider of Thunderbolt™ 3 to PCIe® card expansion systems; external graphics (eGFX) solutions for pro users and gamers; pro media readers; docks and adapters; and network, storage, and other interface cards for pro users in the audio, video, and broadcast industries. Sonnet’s Thunderbolt expansion products enable the use of pro audio I/O and DSP cards, pro video capture and transcoding cards, GPU cards, network and storage interface cards, and other high-performance PCIe cards with Thunderbolt technology-enabled computers. For more than 30 years Sonnet has pioneered and brought to market innovative and award-winning products that enhance the performance and connectivity of Mac®, Windows®, and other industry-standard computers. More information is available at


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