This article covers Sonnet M.2 4x4 サイレントPCIeカード(4つのM.2 NVMe SSDスロット)。.

Overview

The Sonnet M.2 4x4 Silent PCIe Card (FUS-SSD-4X4-E3S) is a high-performance expansion card that lets you install up to four M.2 NVMe SSDs in a single PCIe x16 slot. When configured in RAID 0, it delivers sustained transfer speeds of up to 14,000 MB/s, offering massive, ultra-fast storage for demanding workflows. The card is passively cooled, making it completely silent — ideal for noise-sensitive environments. It supports Windows 10/11, macOS 15.2+ (Mac Pro 2019 and 2023), and Linux Kernel 5.0+, and can also be used in Thunderbolt expansion chassis. This card is squarely aimed at professionals who need to consolidate multiple NVMe drives into one slot without sacrificing performance. It's a premium solution for video editors, audio engineers, data scientists, and anyone who works with very large files.

Connectivity & Compatibility

The Sonnet M.2 4x4 uses a PCIe 3.0 x16 interface (physically x16; can run at x8 with reduced bandwidth). Each M.2 slot is wired as PCIe 3.0 x4, supporting NVMe SSDs only — SATA M.2 drives are not compatible. Maximum capacity is 32 TB (using four 8 TB drives). Compatible operating systems include Windows 10/11, macOS 15.2+ (Mac Pro 7,1 and Mac Pro 14,8), and Linux Kernel 5.0+. It also works in Thunderbolt expansion enclosures with Thunderbolt-equipped Mac, Windows, or Linux computers. The card is full-height, full-length, so ensure your case has a free PCIe slot with adequate clearance.

Product Info

Released around 2020, the Sonnet M.2 4x4 is priced at roughly ¥55,604 (about $350–400 USD) on Japan. It comes with a 2-year limited warranty and free lifetime technical support. The package includes the card, documentation, and mounting screws for the SSDs. In terms of market positioning, this is a high-end storage add-in card. It's not for casual users — it's designed for professionals who need to aggregate multiple NVMe SSDs into a single, fast storage pool, often using software RAID for maximum throughput.

Best Use Cases

Video Professionals: If you edit 4K/8K RAW footage, a RAID 0 array over this card can sustain 14 GB/s, making timeline scrubbing and exports significantly faster. Works great with Premiere Pro, DaVinci Resolve, and Final Cut Pro. Audio Engineers: Load massive sample libraries (e.g., Kontakt, Spitfire) onto NVMe SSDs for instant access with low latency. Ideal for large orchestral projects with hundreds of tracks. Data Scientists & Researchers: When working with multi-GB datasets, this card lets you pool four SSDs for faster read/write speeds, reducing iteration times. Workstation / Server Builders: Expand NVMe storage when motherboard M.2 slots are exhausted. Perfect for caching, backup, or high-speed scratch disks. * Who Should Skip This: Gamers will see little benefit — single NVMe drives are already fast enough for load times. Also, RAID 0 offers no redundancy, so this card is not recommended for irreplaceable data without a backup strategy.

Things to Consider

The card does not include a hardware RAID controller — all RAID levels are handled by the OS (e.g., Windows Storage Spaces, macOS Disk Utility). If you need dedicated hardware RAID, look elsewhere. Each M.2 slot is limited to PCIe 3.0 x4 bandwidth (~3.5 GB/s per drive). Using PCIe 4.0 or 5.0 SSDs will not give you faster speeds on this card; they will be capped at PCIe 3.0 rates. * Power draw is up to 75W from the PCIe slot. Ensure your PSU has enough headroom, especially if the card is used alongside a high-power GPU. ## FAQ
Q: Can I use SATA M.2 SSDs with this card? A: No, this card supports only NVMe (PCIe) M.2 SSDs. SATA M.2 drives are not electrically compatible. Q: Which Mac models are officially supported? A: Mac Pro 7,1 (2019) and Mac Pro 14,8 (2023) running macOS 15.2 or later. Intel Macs with Thunderbolt may work via a Thunderbolt enclosure, but Apple Silicon Macs lack internal PCIe slots for this card. Q: Does the card support RAID 0, 1, or 10? A: It supports any software RAID configuration your OS offers (RAID 0, 1, JBOD, etc.), but there is no hardware RAID logic on the card. You must configure the array in Disk Utility or Storage Spaces.

Product Disclosure (Amazon)

  • Manufacturer: Sonnet Technologies
  • Brand: ソネット・テクノロジーズ
  • Seller: Reg shop
  • Fulfilled by: Reg shop
  • Model: FUS-SSD-4X4-E3S
  • ASIN: B0892VBP7P
  • Note: This article covers a manufacturer-made product based on Amazon listing details.