Tech Specs

Product Specfications

Mac, Windows, and Linux Logos

Compatibility

Mac Compatibility

  • Mac Pro 14,8 (2023)
  • x16 Slot 1 or 2 (recommended slots)
  • Mac Pro 7,1 (2019)(1)
    • macOS 15+; compatible with macOS 27

    Windows Compatibility

    • Windows computer with an available full-length, full-height x16 PCIe slot (PCIe 4.0 slot preferred; PCIe bifurcation not required)
    • Windows 11 25H2+
    • Windows Server 2025

    Linux Compatibility

    • Linux computer with an available full-length, full-height x16 PCIe slot (PCIe 4.0 slot preferred; PCIe bifurcation not required)
    • Supported Linux kernel, 6.6 or later

    Thunderbolt Expansion System Compatibility

    • Thunderbolt expansion system with an available full-length x16 PCIe slot

    Power Requirements

    • When seven or eight SSDs are installed on the Sonnet card, connecting the included 6-pin PCIe auxiliary power cable between the computer’s and the card’s power connectors is required (optional when up to six SSDs installed).

    M.2 NVMe SSDs Compatibility(2)

    • For a list of compatible M.2 NVMe SSDs, see the following PDF
    M.2 NVMe SSDs Compatibility PDF download link.

    Hardware

    Part Number

    • FUS-SSD-8X4-E4S

    Warranty

    • 2-year

    Form Factor

    • Full-length, full-height computer card

    Internal Connectors

    • Eight M-keyed (NVMe) M.2 sockets
    • 6-pin PCIe auxiliary power connector

    SSDs Supported(2)

    • Single-sided and double-sided M.2 2280 NVMe PCIe SSDs

    Boot Support (From a Single SSD)

    • macOS
    • Any Thunderbolt Mac
    • Windows, Linux
    • Computers with UEFI BIOS

    RAID Support

    • macOS(3), Windows, Linux
    • RAID 0 (Stripe), 1 (Mirror), 5 (Parity), or 1+0

    NVME Support

    • Yes

    SSD Power/Activity Indicators

    • Yes

    S.M.A.R.T. Status Data Reporting Support

    • All SSDs

    Package Contents

    • Sonnet M.2 8x4 Silent Gen4 PCIe Card
    • Thermal transfer pads
    • 6-pin to 6-pin auxiliary power cable for Mac Pro
    • Documentation

    Support Links

    Support Knowledge Base

    Sonnet M.2 8x4 Silent Gen4 PCIe Card Support

    Product Documentation

    Sonnet M.2 8x4 Silent Gen4 PCIe Card documentation PDF download link.

    Technical Notes

    • Mac Pro 7,1 (2019) does not suppport RAID, or more than one PCIe card with SSDs.
    • You may install any number of SSDs now and add more later without needing to reformat existing ones. This product’s performance will vary based on the type and number of SSDs used, the CPU speed, and the PCIe architecture.
    • RAID 5 support under macOS requires third-party software such as SoftRAID, sold separately.

    Videos & Reviews

    Sonnet M.2 8x4 Silent Gen4 PCIe Card