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Performance and Data Security

Considering a multi-drive storage system? If so, you already know about the benefits of striping data across multiple drives—you’ll gain the faster performance necessary for working with HD video formats when you connect the system to an eSATA host controller. Sonnet’s Fusion™ D400QR5 desktop and Fusion R400QR5 rackmount SATA storage systems deliver speed, reliability, and versatility in easy to deploy packages. Fusion D400QR5 and R400QR5 systems offer security, too—each one features a high performance internal RAID controller that manages the enclosed drives and supports RAID 5 drive formatting, which provides data protection in case one of the drives fails. Available in configurations from 4 to 12TB, these Sonnet storage systems incorporate an informative display and status LEDs, and simple to use controls that enable you to easily configure the drives or select information to be displayed.

Connected to a Sonnet Tempo™ SATA E4P PCIe or X4P PCI-X host controller installed in a Mac® or Windows® computer, a Fusion D400QR5 or R400QR5 system’s drives can be accessed at maximum speed(2), whether configured as a RAID 0 or RAID 5 set. With its drives configured as a RAID 5 group (four drives striped with parity across all group members), a single Fusion D400QR5 or R400QR5 system achieves data throughput of 225 MB/sec read and 210 MB/sec write, fast enough to support multiple streams of DV, HDV, DVCPRO, ProRes 422, or a single stream of uncompressed 10-bit NTSC video. Do you want even more performance? Up to four Fusion D400QR5 or R400QR5 systems can be ganged on a single Tempo SATA E4P or X4P controller for enhanced data throughput and multiple times the available streams (as well as increasing the number of supported video formats).

One Cable, All the Data

Fusion Enclosure Back PanelFusion D400QR5 and R400QR5 storage systems feature a quad interface that requires just a single locking data cable to connect the enclosure to an eSATA host controller card. This efficient interface simplifies setup and cuts cable clutter without compromising performance. No SATA? No problem—connected via a single FireWire® 800, FireWire 400, or USB cable, all four drives can be accessed at the full speed of the respective interface. Sonnet even includes all the cables so you can connect your Fusion storage system right out of the box.

Quad Interface Logos


Information on Display

Fusion R400QR5 DisplayFusion 400QR5 storage systems feature integrated controls and an informative display (rear-mounted on the R400QR5), making setup and monitoring simple. RAID mode, drive health (S.M.A.R.T., or Self Monitoring, Analysis, and Reporting Technology), drive temperature, and operating status can be displayed with a couple of button presses. Status LED indicators enable you to determine drive presence, activity, and fault status at a glance.

Quiet Either Way

To keep things cool, the Fusion D400QR5 uses a swappable fan module. The fan is 80% quieter than a standard case fan, making this system perfectly suited for use in noise-sensitive environments. The 1U rackmount Fusion R400QR5 system enclosure, at just 1.75" tall, is simple to deploy in most server racks, but can also be used on a desktop—use of four low noise fans make it suitable for use in noise-sensitive environments, too.

Key Features

High Performance, Protected Data—When connected via eSATA and with four 1TB drives configured as a RAID 5 set, data transfers up to 225 MB/sec read, 210 MB/sec write while protecting the data

RAID 5 Onboard—Integrated hardware RAID controller supports RAID 5 drive configuration on its own; no need for a specialized RAID controller card

Four Interfaces, Single Cable Connection—Choose from eSATA, FireWire 800, FireWire 400, and USB 2.0 interfaces, and connect to your computer with a single cable

Informative Display and LED Indicators—Determine operating status at a glance

Simple Configuration—Integrated controls enable you to select RAID modes and configure the drives to meet your performance and data security needs, no matter which interface you choose

Quiet Fans—Low fan noise levels make these Fusion storage systems suitable for use in noise-sensitive environments

4TB, 8TB, and 12TB configurations

eSATA, FireWire 800, FireWire 400 and USB cables included

Compatible with Sonnet Tempo™ SATA PCI-X, PCIe, and ExpressCard/34 host controllers

RoHS compliant


Fusion D400QR5 storage systems integrate an ultra-quiet, user-swappable fan module using the Vantec Stealth™ fan. This fan is 80% quieter than a standard case fan, making these desktop system well suited for use in noise-sensitive environments. Fusion R400QR5 storage systems employ four low-noise fans, making these rackmount systems suitable for desktop use, too.

Secure Connection
Fusion D400QR5 and R400QR5 enclosures link to Sonnet Tempo SATA E4P and X4P SATA host controller cards with Sonnet’s exclusive locking eSATA data cables with connectors that lock securely at both ends.

Driving Force

Fusion D400QR5 and R400QR5 storage systems employ Sonnet certified desktop drives that have been selected for their superior performance, error handling, and reliability characteristics, especially when used in RAID groups. These drives are subjected to hours of additional, stringent testing to check for soft errors, vibration, and other reliability predictors. Just the sturdiest drives pass these tests become the building blocks of a super-reliable Fusion storage system.

Versatile Performance

These systems are ideal for use in mixed environments—various operating systems, editing applications and output demands requiring the flexibility and interoperability that Fusion D400QR5 and R400QR5 storage systems provide. These Fusion storage systems support Mac OS® X, Windows 7, Vista®, Windows XP(4) Windows Server 2008 and 2003, and Linux. They are compatible with caputre cards from AJA, Blackmagic Design, Matrox, and Bluefiss444, and work with all mainstream video editing applications including Apple® Final Cut Pro®, and Adobe® Premiere® Pro.


Part No.  
FUS-D4QR5 Discontinued
Warranty 5-year
External Connectors eSATA, 2 x FireWire 800, FireWire 400, Mini-USB 2.0
Drives Supported Up-to-date compatible hard drives listed on our Certified Hard Drive Compatibility Chart
Data Transfer Speed Up to 225 MB/s, depending on drives, interface(2), and configuration
Supported Drive Configurations Hardware-based RAID 0, 5(3)
Supported Vide Formats Uncompressed 10-bit NTSC HD, DV, HDV, DVCPRO, and uncompressed SD
Power Supply Universal 180W, 100–240V AC, 50–60Hz
Operating Temperature +32º F to +95º F (0º C to +35º C)
Dimensions (D400QR5) WxDxH: 5.9 x 11.2 x 7.5 in (14.9 x 28.5 x 19.0 cm)
Dimensions (R400QR5) WxDxH: 17.0 x 16.5 x 1.75 in (43.8 x 41.9 x 4.4 cm)
Weight (D400QR5) 14.7 lbs (6.7 kg) with drives,
9.1 lbs (4.1 kg) without
Weight (R400QR5) 18.4 lbs (8.3 kg) with drives,
12.8 lbs (5.8 kg) without
Noise Fusion D400QR5: 40 dBA
Fusion R400QR5: 41 dBA
(Ambient Office 40-50 dBA)
Package Contents
  • Disk enclosure
  • Four 3.5" drive modules
  • One locking eSATA cable
  • One FireWire 800 cable
  • One FireWire 400 cable
  • One USB cable
  • Power cord
  • User’s Guide








OS Compatibility

Platform independent—works with Mac, Windows(4), and Linux computers

Capture Card Compatibility

AJA, Blackmagic Design, Matrox, and Bluefish444

Video Editing Application Compatibility

Apple Final Cut Pro and Adobe Premiere Pro

Technical Notes

  1. Although hard drive manufacturers and Mac OS X 10.6 define 1 gigabyte as 1,000,000,000 byte, many other computer operating systems calculate a gigabyte by dividing the bytes by 1,073,741,824 (). This distinction may be a cause of confusion, as a hard disk with a manufacturer rating of 1000GB may have its capacity reported by the operating system as 915GB.
  2. When connected to a computer via its eSATA interface, Fusion D400QR5 and R400QR5 storage systems perform their best when used with a high performance SATA host controller such as Sonnet's Tempo SATA E4P for computers with PCI Express slots, Tempo SATA X4P for computers with PCI-X slots, or Tempo SATA Pro ExpressCard/34 for portable computers with an ExpressCard slot.
  3. Creating RAID volumes under Windows requires dynamic disk storage, a formatting option available with Windows Server 2008 R2, Windows Server 2003 SP1, Windows 7 Professional, Enterprise or Ultimate (32- and 64-bit versions), Windows Vista Enterprise or Ultimate (32- and 64-bit versions), or Windows XP Professional (32- and 64-bit versions). In order to create RAID volumes larger than 2TB, you must do one of the following: Span (link together in a virtual chain) the volumes, and then format them as NTFS. -OR- Use GPT formatting. Note that drives and volumes with GPT formatting are not visible to any version of Windows XP Professional, nor to the 32-bit version of Windows Server 2003 SP1.
  4. Applicable to Fusion D400QR5/R400QR5 shipped from Sonnet April 12, 2011 and later.
  5. All 4, 8 and 12TB models of the Fusion D400QR5 and R400QR5 ship with hard drives which have been tested to support video editing applications. These drives are among those noted as "approved for video editing" as found on the Drive Compatibility Matrix.

Specifications subject to change without notice.

Mac OS LogoWindows Logo Linux LogoroHS Logo

Product image Product Name Part No. Description
Fusion RAID Drive Module Fusion 500GB RAID Drive Module FUS-RM-0500GB Spare drive module for Fusion D400QR5/R400QR5
Fusion 750GB RAID Drive Module FUS-RM-0750GB Spare drive module for Fusion D400QR5/R400QR5
Fusion 1TB RAID Drive Module FUS-RM-1000GB Spare drive module for Fusion D400QR5/R400QR5
Fusion 1.5TB RAID Drive Module FUS-RM-1500GB Spare drive module for Fusion D400QR5/R400QR5
Fusion 2TB RAID Drive Module FUS-RM-2000GB Spare drive module for Fusion D400QR5/R400QR5
Fusion Quiet Fan Module Fusion Quiet Fan Mocule FUS-XFAN Spare fan module for Fusion D400QR5
Fusion Rack Slide Set Fusion Rack Slide Set (17.5-21") FUS-RSS-P Rack Mount Sliding Rail Kit for Fusion R400QR5 (17.5-21" rack)
Fusion Rack Slide Set (23-26.5") FUS-RSS-S Rack Mount Sliding Rail Kit for Fusion R400QR5 (23-26.5" rack)
Fusion Rack Slide Set (27-30.5") FUS-RSS Rack Mount Sliding Rail Kit for Fusion R400QR5 (27-30.5" rack)
Fusion Rack Slide Set (29-32.5") FUS-RSS-L Rack Mount Sliding Rail Kit for Fusion R400QR5 (29-32.5" rack)

Expert Reviews Rating

Sonnet Fusion D400Q Review
"Whether you want to connect using USB 2, FireWire 400, the higher-speed FireWire 800, or eSATA (external SATA), this drive has what you need. You're unlikely to swap back and forth a lot, but it does mean that you can connect it to any machine you like. This is really best used with an eSata PCI card, as that's what will give you the best performance. But if you need to connect to another Mac using either flavour of FireWire or even USB, you're free to do so…

…The fan in the device was noticeable only in its silence; it was exceptionally quiet when in use, so it should do well in quiet offices. The Fusion D400Q is an excellent choice for anyone who needs high-speed data transfer, both in bursts and sustained streams."

Awards & Case Studies
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