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4.0TB (4 x 1.0TB) OWC Mercury Rack Pro 4 Bay 1U Rackmount RAID Solution - eSATA/FW800/FW400/USB 3.0 - Enterprise Class

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Shipping cost is $9.90 (flat rate) for any size order.
This product is covered by an Australian Replacement Warranty.
30 Days Money Back Guarantee. Click here for more details.

Product code: OWMRPM3F8Q04.0E

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128MB Cache / 7200RPM w/ selectable RAID 0,1,3,5,10, JBOD Span & Independent Mode Options. eSATA w/ Port-Multiplier capability, FW800, FW400 & USB 3.0. OWC/Macfixit 5 Year Australian Replacement Warranty.

Your price: $2,188.99

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OWC Mercury Rack Pro

Multi-Interface with Hardware RAID

FireWire 800 & 400, USB 3.0, eSATA, & eSATA Port-Multiplier 
Mac and PC compatible
  • FireWire 800/400
  • eSATA
  • USB
  • Mac
  • PC

OWC affordability, reliability, and ease-of-use in a single 1U rack space.

4.0TB of Performance, 4 Bay Enterprise

Class Performance RAID Solution

Data transfer speeds up to 300MB/s. Rear panel selectable Hardware RAID settings:
SPAN, 0, 1, 3, 5, 10 and Non-RAID/Raid Ready: Independent Mode - Each drive appears as independent volume

5 Year Australian Replacement Warranty

OWC Mercury Rack Pro RAID 5 storage solutions come pre-configured as a hardware controlled RAID 5 "stripe with parity" array to provide both speed and data protection to meet high-performance demands. 

The OWC Mercury Rack Pro RAID 5 consists of four matched SATA hard drives, up to 7200RPM; to provide the longest possible reliability and optimized performance. 

Specifically designed to meet the performance demands of video and audio production, the OWC Mercury Rack Pro four Bay RAID 5 solution provides data transfer rates of over 300 Megabytes per second! Using the highest capacity SATA hard drive mechanisms available, and offering Plug & Play simplicity, the possibilities are endless!

Control and manage your RAID settings with the OWC RAID Manager Visual Interface.

Note: OWC Mercury Rack Pro solutions do not include rack rails. If rails are required for your rack setup, Macfixit Australia has them available. Click Here.
Outstanding Features
High Performance
The Custom High Performance Chipset eSATA with Port-Multiplier capability, FireWire 800 (1394B), FireWire 400 (1394A), & USB 3.0 chipset, combined with the fastest SATA drive mechanisms available give OWC Mercury Rack Pro four Bay storage solutions some of the fastest drive transfer rates possible with eSATA exceeding 300 Megabytes per second!
High Reliability
A Top-Notch design using the best components gives the OWC Mercury Rack Pro an industry leading two year warranty and ensures the series is built to last!
The OWC Mercury Rack Pro RAID series offers (1) eSATA port with eSATA Port-Multiplier capability, (2) FireWire 800 (1394B) ports, (1) FireWire 400 (1394A) port, and (1) USB 3.0 port for easy Plug and Play on ANY system! The OWC Mercury Rack Pro RAID even includes all needed connection cables!
Swap Drives at Will
When using the OWC Mercury Rack Pro in Independent mode*, all four drives appear on your system as individual volumes drives, so you can mix and match drives of any size and brand and hot swap** the drives too.
Smart Power
Smart Power regulates power during prolonged periods of inactivity to save operating costs and prolong component lifespan.
Flexible Form
The OWC Mercury Rack Pro can easily be converted to a desktop form-factor via a Phillips screwdriver by simply removing the rack ears and installing the included anti-skid, vibration dampening feet.

*When using in independent mode via eSATA, you must use an eSATA Port Multiplier capable card.
Please see "Recommended eSATA Cards" in SPECS table and check for Port Multiplier compatibility.

**When using in Independent Mode and wanting to switch out one or more drives, ALL drives must be ejected (unmounted) from the Desktop to avoid data corruption. 

Product Specifications:


  • Custom High Performance eSATA with Port-Multiplier capability, FireWire 800 (1394B), FireWire 400 (1394A) and USB 3.0 Chipset

RAID / JBOD Support

  • Rear panel selectable Hardware RAID settings – SPAN, 0, 1, 3, 5, 10 and Non-RAID/Raid Ready: Independent Mode – Each drive appears as independent volume

Standard Mechanism

  • 4 x 2.0TB* HGST Deskstar A7K2000 Hard Disk Drive**

    *1GB = 1,000,000,000 bytes. Total accessible capacity varies depending upon operating environment (typically 5-10% less). The actual total capacity will depend on your own defined file settings/preferences.

    **OWC reserves the right to replace or upgrade to equivalent or better components.

Drive Rotation Speed

  • 7200 RPM

Drive Cache Size

  • 32MB per drive, 128MB total for the solution

Port Configuration

  • eSATA - 1 eSATA port 
    with Port-Multiplier capability
  • FireWire 800 - (2) 9 pin ports
  • FireWire 400 - (1) 6 pin port
  • USB 3.0 - (1) "A" port


  • Pre-formatted for Mac OSX 

Max Data Transfer Rate

  • eSATA - 300MB/s
  • FireWire 800 - 100MB/s
  • FireWire 400 - 50MB/s
  • USB 3.0 - 500MB/s
  • USB 2.0 - 60MB/s
  • USB 1.1 - 1.5MB/s

Port/Interface Bootability

    Can I use this solution as external startup drive?
  • eSATA: Supported on Macs and PC's meeting minimum requirements.
  • FireWire 800: Supported on Macs and PC's meeting minimum requirements.
  • FireWire 400: Supported on Macs and PC's meeting minimum requirements.
  • USB 3.0: Supported on Macs and PC's meeting minimum requirements.
  • USB 2.0: Supported on Macs and PC's meeting minimum requirements.

Macintosh System Requirements

  • eSATA: Macintosh with eSATA PCI Interface card. eSATA requires Mac OS X 10.2 or later. Including ‘Lion’ 10.7.x.
  • FireWire 800* (1394B): Macintosh with FireWire 800 (1394B) interface, either built in or via PCI FireWire 800 (1394B) card. FireWire 800 (1394B) requires Mac OS X 10.2 or later. Including ‘Lion’ 10.7.x.
  • FireWire 400 (1394A): Macintosh with FireWire 400 interface, either built in or via PCI FireWire 400 card. FireWire 400 requires Mac OS 8.6 or later. Including ‘Lion’ 10.7.x.
  • USB 3.0: Macintosh OS 8.6 to 9.2.2, OS X 10.2.x or later. Including ‘Lion’ 10.7.x, and an available USB 3.0 port.
  • Time Machine® Compatible: Mac OS X 10.5 (version introduced) and later.

Windows System Requirements

  • eSATA: Windows system with eSATA PCI Interface, either built in or via PCI eSATA card. eSATA requires Windows XP or later.
  • FireWire 800 (1394B): Windows system with FireWire 800 (1394B) interface, either built in or via PCI FireWire 800 (1394B) card. FireWire 800 (1394B) requires Windows XP or later.
  • FireWire 400 (1394A): Windows system with FireWire 400 interface, either built in or via PCI FireWire 400 card. FireWire 400 requires Windows XP or later.
  • USB 3.0: Windows 98 or later and an available USB 3.0/USB 2.0/USB 1.1 port.

Linux Requirements

  • Linux compatible via supported USB and FireWire interfaces.


  • Three (3) 4cm Brushless, whisper quiet, constant speed fans

Power Supply

  • UL Listed U.S./International Adjustable 100 ~ 240v, 50/60Hz, 200W (Max.) input Power Supply (adapter plugs for International use sold separately).

External Case Dimensions

  • 11.9"(D) x 17.3"(W) x 1.7"(H)
  • 30.3cm x 44cm x 4.5cm
  • 11.9"(D) x 17.3"(W) x 2.2"(H) (with feet)
  • 30.3cm x 44cm x 5.5cm (with feet)
  • 11.9"D) x 19.2"(W) x 1.7"(H) (with rack mounting handles)
  • 30.3cm x 48.7cm x 4.5cm (with rack mounting handles)

Enclosure Weight (no accessories)

  • Approximately 10 lbs. (4.5kg)

Product Manual

Software Included

  • OWC RAID Manager Visual Interface (for Mac OS X 10.5.x or later with Intel® processor)
  • Intech® Hard Disk SpeedTools Utilities™ OEM (For Mac OS 8.6 – X only)
  • ProSoft Engineering® Data Backup for Mac OS X v10.2.8 or later
  • NovaStor NovaBACKUP® for Windows 2000 or later
  • Over 1.5GB of Freeware, Shareware, Public domain software installed


Operating Environment:


  • (operating) 5°C – 55°C (41°F – 131°F)
  • (non-operating) –40°C – 65°C (–40°F – 149°F)

Relative Humidity

  • (operating) 8% - 90% RH (Non-condensing)
  • (non-operating) 5% - 95% RH (Non-condensing)


  • 65G 2mS; (non-operating) 175G 2mS


  • (operating) 1.0G (5 - 300Hz)
  • (non-operating) 5.0G (5 - 500Hz)


OWC/Macfixit Australian 5 Year Replacement Solution Warranty

The best warranty is one you never have to use, but should the need occur – OWC is proud to provide a superior level of support and warranty coverage to our customers. Even when not used, we understand the peace of mind afforded by a longer warranty period. OWC's industry leading coverage is a testament to our confidence in the reliability of the solutions that we offer. OWC solutions are engineered to demanding quality standards in order to deliver the most reliable, highest performance available on the market in each storage category.

Note: Do not disassemble or otherwise open your OWC solution prior to the conclusion of OWC's 2 year Warranty period. Doing so will void the remainder of the OWC warranty.


Manufacturer provided specifications for Other World Computing p/n OWMRPM3F8Q04.0E UPC#: 736211766953*The use of FireWire 800 interface while the Rack Pro is in RAID 5 setting is not recommended for optimum drive speed performance. 

Additional Information

Colour Silver
Capacity 4.0TB
RPM 7200
Number of Bays/Drives 4
Model Identifier N/A
Connection eSATA, FW400, FW800, USB 2.0, USB 3.0
Form Factor 3.5 inch
Manufacturer OWC
Manufacturer P/N OWMRPM3F8Q04.0E
Shipping Restriction N/A

Australian Owned Business 

Macfixit Australia is an Australian owned and operated business based in Melbourne, Victoria and we've been operating since 2005.

Fast Flat Rate Shipping on all orders

Shipping cost is $9.90 (flat rate) for any size order. Express Options are available in cart/checkout. All in-stock orders are shipped the same day if received by 10.30 AM (Eastern Time Victoria). Orders received after 11:00 AM are shipped the following business day.

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