Install up to Four M.2 NVMe SSDs into a PCIe Card Slot
If you need to add internal storage to your computer and ultra high-speed data transfers are critical to your work, you need an NVMe SSD-based upgrade. Individually, M.2 NVMe PCIe SSDs offer tremendous performance, but Sonnet’s M.2 4x4 PCIe Card enables you to mount up to four of them into a single x16 card slot and combine their performance. No matter how you use it, this card can transform the way you work.


Sonnet’s M.2 4x4 PCIe Card is a full-height, full-length PCIe 3.0 card with a 16-lane (x16) interface, designed to support full performance from four SSDs. Unlike “similar” adapter cards, Sonnet's M.2 4x4 card features:
x16 PCIe Bridge
Devotes four lanes of PCIe 3.0 bandwidth to every SSD you install (instead of limiting the x4 bandwidth to two SSDs at a time)
Self-contained
Card doesn’t require a specific motherboard to operate or specific SSDs to support RAID features – no PCIe bifurcation required
Universal Compatibility
Mac®, Windows, and Linux compatible
M.2 PCIe SSD Support
Works with a wide variety of M.2 NVMe PCIe SSDs; now also supports double-sided SSDs
Key Features
Add up to 32TB Ultra-Fast Storage
Mounts up to four M.2 NVMe SSDs (sold separately) in an x16 PCIe slot; also supports double-sided SSDs.
High-Performance PCIe Interface
PCI Express 3.0 x16 host bus interface plus x16 PCIe bridge; four lanes of PCIe 3.0 bandwidth devoted to each installed SSD.
Superior Performance
Achieve sustained RAID 0 speeds up to 11,700 MB/s.
RAID Support
Supports macOS, Windows, and Linux RAID 0, 1, and 5 (macOS RAID 5 support requires SoftRAID software, sold separately).
macOS Boot Support
Supports booting from a single (non-RAIDed) attached SSD.
No Thermal Throttling
Custom silent-operating cooling solution enables installed SSDs to maintain high performance during very large file transfer operations.
Optimised for Thunderbolt
Use in Sonnet Thunderbolt expansion systems to connect up to four SSDs through one cable with performance up to 2800 MB/s.
NVMe Compliant
No drivers required.
S.M.A.R.T. Operation
Supports S.M.A.R.T. (Self-Monitoring, Analysis and Reporting Technology) data reporting.
Technical Specifications
Compatibility
Mac Compatibility
- Mac Pro 7,1 (2019) – Use x16 PCIe slot (slot 3, 4, or 5) for full performance
- Mac Pro 5,1 (Mid 2010 & Mid 2012) with available full-length x16 PCIe slot
- macOS 10.13.6+
- macOS Monterey compatible
Windows Compatibility
- Windows computer with available full-length, full-height x16 PCIe slot (PCIe bifurcation not required)
- Windows 11 and 10
Linux Compatibility
- Linux computer with available full-length, full-height x16 PCIe slot (PCIe bifurcation not required)
- Linux Kernel 5.0+
Thunderbolt Compatibility
- Mac (M1, M2, M1 Pro, M1 Max, M1 Ultra, and Intel®) computer via a Thunderbolt PCIe card expansion system with available full-length x16 PCIe slot
- Windows computer via a Thunderbolt PCIe card expansion system with available full-length x16 PCIe slot
- Linux computer via a Thunderbolt PCIe card expansion system with available full-length x16 PCIe slot
Hardware
Part Number
- FUS-SSD-4X4-E3S
Warranty
- 2-year
Form Factor
- Full-length, full-height computer card
Internal Connectors
- Four M-keyed (NVMe) M.2 sockets
SSDs Supported
- Single-sided and double-sided(6) M.2 2280 NVMe PCIe SSDs
- M.2 NVMe SSDs Compatiblity PDF
Boot Suppport
- macOS
- Only from a single SSD (not RAIDed)
- Mac Pro 5,1 or Mac Pro 7,1
- Any Thunderbolt Mac
- Windows, Linux
- No
RAID Support
- macOS, Windows, Linux
- RAID 0, 1, or 5 (Stripe, Mirror, or Parity)
NVME Support
- Yes
S.M.A.R.T. Status Data Reporting Support
- Yes
RoHS Compliant
- Yes
Package Contents
- Sonnet M.2 4x4 PCIe Card
- Thermal transfer pads
- SSD mounting screws
- Documentation