Unleash Blazing-Fast, High-Capacity U.2 SSD Storage
When your professional workflow demands uncompromising storage performance, standard SSDs simply can’t measure up. The Sonnet Fusion™ Dual U.2 SSD PCIe Card is the definitive storage upgrade for your Mac Pro®, Windows®, or Linux® computer, providing a streamlined, direct-to-PCIe path for adding two enterprise-class U.2 NVMe SSDs. This powerful card lets you install up to 32TB of screaming-fast solid-state storage (or more) into a single PCIe x16 slot, all without the clutter of extra power cables, data cables, or drive adapters.
Engineered for creative professionals and power users, the Fusion card unlocks the true potential of U.2 NVMe technology. Unlike traditional SATA SSDs that are limited by a 6Gb/s interface, U.2 SSDs connect directly to the PCIe bus. This delivers blistering transfer speeds up to 3,500 MB/s per drive—a staggering seven times faster than the quickest SATA SSDs. Furthermore, U.2 drives feature robust, self-cooling enclosures that ensure stable, throttle-free performance during sustained heavy loads, a significant advantage over M.2 SSDs that often require complex heatsinks to prevent overheating.
Installation is simple. The card’s intelligent onboard PCIe bridge allocates four dedicated lanes of PCIe 3.0 bandwidth to each SSD, guaranteeing maximum throughput. This advanced design means it works in any full-length x16 slot without relying on motherboard-specific features like bifurcation, ensuring broad compatibility.
For truly breathtaking performance, configure your two U.2 SSDs in a RAID 0 set to achieve sustained transfer speeds of up to 6,250 MB/s. This makes the Fusion card an indispensable tool for 4K/8K video editing, large-scale data analysis, and any application where storage speed is the bottleneck. The card is NVMe compliant for driverless setup and even works perfectly in Sonnet's Thunderbolt™ expansion chassis, bringing elite enterprise storage to any compatible computer.
Key Features
- Massive Storage Expansion: Mounts two U.2 NVMe SSDs (sold separately) to add up to 32TB or more of storage in a single x16 PCIe slot.
- Incredible Performance: Achieve sustained RAID 0 data transfer speeds up to 6,250 MB/s for unparalleled workflow acceleration.
- High-Performance PCIe Interface: A dedicated PCIe 3.0 x4 bridge to each SSD ensures maximum speed without bottlenecking.
- Universal Compatibility: Fully compatible with macOS, Windows, and Linux systems with an available full-length x16 PCIe slot.
- No Bifurcation Required: The onboard PCIe bridge allows the card to work in any x16 slot, regardless of motherboard support for bifurcation.
- Optimized for Thunderbolt: Perfect for use in a Thunderbolt 3 expansion chassis to add high-performance storage to computers without PCIe slots.
- Silent & Cool Operation: Fanless design relies on the self-cooling enclosures of U.2 SSDs for silent, reliable, and throttle-free performance.
- Plug-and-Play: NVMe compliant for simple, driverless installation using your OS's built-in drive utilities.
Technical Specifications
| Specification | Detail |
|---|---|
| Part Number | FUS-U2-2X4 |
| Host Interface | PCI Express 3.0 x16 (Mechanical), x8 (Electrical) |
| SSD Interface | 2 x U.2 (SFF-8639) Connectors |
| Supported SSDs | 2 x 2.5-inch U.2 NVMe SSDs (Sold Separately) |
| Performance | Up to 6,250 MB/s sustained transfer rate (RAID 0) |
| RAID Support | OS-level RAID 0 and RAID 1 (macOS, Windows, Linux) |
| Boot Support | Supports booting from a single, non-RAIDed SSD in macOS |
| S.M.A.R.T. Support | Yes, supports S.M.A.R.T. data reporting |
| Compatibility |
Mac: Mac Pro 5,1 & 7,1; macOS 10.13.6+ Windows: PC with x16 slot; Windows 10 (v1809+) Linux: PC with x16 slot; Linux Kernel 5.0+ Thunderbolt: Mac, Windows, or Linux via a Thunderbolt 2/3 expansion chassis |
Shipping policy
Any items which are in stock, will be dispatched immediately - same day if possible and morning of the following business day at the latest. Items which are not in stock at our local warehouse will be routed to us, and dispatched immediately upon arrival to us. In that case, the estimated dispatch time is noted on the product page.
Note that you are always welcome to email info@dittools.eu or call (+372) 5556 0057 for a more accurate shipping time estimate, as this does vary depending on a number of factors.
Standard shipping
Unless otherwise noted, all items are shipped standard via DPD. We normally ship to European Union countries only – do contact us for possible exceptions, particularly other European mainland countries. Shipping times vary between 1 to 10 business days within Europe – an up to date estimate will be given at checkout.
Express shipping
Our shipping partner for expedited deliveries is DHL Express; please contact us directly for a quote.
Returning an item
If you are not completely satisfied with your purchase, you can return your item(s) for a full refund within 14 days of confirmed delivery.
Special sales, demo items and promotions may have modified return policies. If an item from a bundle is returned for refund, the total bundle discount or the total value of the gifts will get deducted from the returned item prior to issuing a refund. If the bundle discount (or gift value) exceeds the value of the returned item, the difference must be paid to be able to return the item.
Return autorization
If you would like to return any item(s), please contact us by either emailing info@dittools.eu or calling (+372) 5556 0057. We will share with you a Return Merchandise Authorization (RMA) code and ask that you clearly mark this code outside of your shipping box as you ship your item(s) back for a refund.
You will be liable for the shipping and any applicable customs/duty fees returning the item(s).
Incorrect items
If the return is made due to a faulty product, or an incorrectly shipped product, or if you are returning the item(s) due to a defect, or functionality issue, or because it is not the item you have ordered, we will gladly email or mail a return shipping label covering all shipping related expenses. In order to determine whether the return is initiated due to a technical problem, we may ask for you to provide visual support like images or a video on the item(s).
Shipping
Returned merchandise must be in its original packaging, and placed in a decent shipping box, e.g. the same box that we shipped the items to you in. Please make sure to clearly mark the RMA code you have received from us outside on the box.
Do not forget to cover or peel off any existing shipping labels on the box.
DIT Supplies OÜ cannot be held accountable for return shipments that have not reached us or returns made without RMA codes. We strongly advise that if you are returning the item(s) with a carrier of your choice that you use a traceable shipping method.
It may take 4-5 business days for your return to reach us. Once it is received and inspected, your refund will be processed and automatically applied to your credit card or original method of payment within 14 business days. Please note that depending on your credit card company, it may take an additional 2-4 business days after your credit is applied for it to post to your account.
Customs, duties & taxes
There are no customs duties or taxes on orders shipping within the EU. Orders shipped outside of the EU may be subject to import taxes, customs duties and fees collected by the destination country. The recipient of an international shipment may be subject to such import taxes, customs duties and fees, which are collected once a shipment reaches the recipient's country. Additional charges for customs clearance must be paid for by the recipient; we have no control over these charges and cannot predict what they may be. Customs policies vary widely from country to country; and when customs clearance procedures are required, it can cause delays beyond our original delivery estimates. We advise that you contact your local customs office for more information.