Home » External Drives and Enclosures

We're sorry, but this item is no longer for sale. However, there may be more External Drives and Enclosures items available.


OWC Mercury Elite Pro
250GB Quad Interface eSATA/FW800/FW400/USB 2.0 & 1.1 Storage Solution

High Performance, High Reliability, and High Portability are standard for the OWC Mercury Elite Pro series!

Outstanding Features:

High Performance: Our high-speed Oxford 924 bridge chipset combined with the fastest SATA drive mechanisms available allow Mercury Elite Pro Solutions to deliver the fastest single drive transfer rates possible, up to 150 Megabytes Per Second!

High Reliability: A top-notch design and the best components ensure the Mercury Elite Pro Series is built to last. The included three year warranty backs this up!

High Portability: The compact and shock-resistant design has the Mercury Elite Pro Series going places! In addition, the Mercury Elite Pro offers (1) eSATA, (2) FireWire 800(1394B), (1) FireWire 400(1394A), and (1) USB 2.0+1.1 ports for easy Plug and Play on virtually ANY system! Even the cables are included!

Style: Designed to compliment any user's system, the Mercury Elite Pro was created in mind with the Mac Pro system as a starting point. As the pictures show, it's a fine storage solution for any computer. Also, a blue activity LED compliments the design recessed behind the front grille showing when your drive is being accessed.


OWC Mercury Elite Pro
Time Machine Ready Time Machine ready means that our external hard drives keep an up-to-date copy of all of your files and documents under OS X Leopard™. Go back in time to recover anything with ease.
From day one, the OWC Mercury Elite Pro Series has been designed to be everything you would hope for and more!
This OWC Mercury Elite Pro enclosure kit includes:
  • OWC Mercury Elite Pro "Quad Interface" Hard Drive
  • 36" High Quality Double Shielded eSATA connecting cable (eSATA - eSATA)
  • 36" High Quality Double Shielded FireWire 800 connecting cable (9-9 Pin cable)
  • 36" High Quality Double Shielded FireWire 400 connecting cable (6-6 Pin cable)
  • 36" High Quality Double Shielded USB 2.0/1.1 connecting cable
  • External AutoSwitching 100/240v 50/60Hz Power Adapter
  • Vertical Stand
  • Owner's Manual
  • Backup and Utility software CD
    • Intech® 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
    • Carbon Copy Cloner© for Mac OS X 10.4 or later
  • Over 1.5GB of Freeware/Shareware/Public domain software installed
Rear Views:
Rear angled view
Rear head on view

Product Specifications:
Chipset: Oxford Semiconductor 924 (OXUF924DS)
Standard Mechanism: 250GB Western Digital Caviar® SE16*

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

SATA (Serial ATA)

Drive Cache Size:

16 Megabyte (16,384k)

Drive Rotation Speed:


Port Configuration:
  • eSATA - 1 port
  • FireWire 800 - (2) 9 pin ports
  • FireWire 400 - (1) 6 pin port
  • USB 2.0/1.1 - (1) 5 pin port
Max Data Transfer Rate:
  • eSATA - 1.5 Gbit/s (or 150 MB/sec)
  • FireWire 800 - 800Mbps (or 100MB/sec)
  • FireWire 400 - 400Mbps (or 50MB/sec)
  • USB 2.0 - 480Mbps (or 60MB/sec)
  • USB 1.1 - 12Mbps (or 1.5MB/sec)
Port/Interface Bootability

Can I use this solution as external startup drive?


Pre-formatted for Mac OSX
For instructions on Windows formatting click here.

Macintosh System
  • Mac OS 8.6 to 9.2.2, Mac OS X 10.0.x or later and an available USB 1.1 or FireWire 400 port.
  • Mac OS X 10.2.8 or later and an available USB2.0/1.1, FireWire 800/400 port, or eSATA port.
Windows System
  • Windows 98SE or later and an available FireWire 400 or USB 2.0/1.1 port.
  • Windows 2000 or later and an available USB 2.0/1.1, FireWire 800/400, or eSATA port.
Power Supply

3A 100-240v 50/60hz US/International Auto Switching - For replacement power supply click here.

External Case Dimensions: 9 in (D) x 4.65 (W) in x 1.5 in (H) (case only in horizontal position)
Total Shipping Weight: Approximately 2.7 pounds (1.2kg)
Software Included:
Recommended eSATA Cards:
Cards that OWC has tested and qualified for the OWC Mercury Elite Pro
PCIe (PCI Express) for Desktops and Towers  
Other World Computing 2 port PCI-e SATA 3G Host Adapter - for Mac Pro, G5 PCIe systems. (OWCPCIESATA2) PRICE: $29.00
SHIPS: Sold Out
NewerTech MAXPower eSATA 6G PCIe 2.0 Controller Card (NWTMXPCIE6GS2) PRICE: $39.99
SHIPS: Sold Out
NewerTech MAXPower 6G PCIe eSATA RAID capable controller card with port multiplier. (NWTMXPCIE6GRS) PRICE: $84.99
SHIPS: 25 Days
Operating Environment:
Temperature: (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)
Shock: (operating) 65G 2mS; (non-operating) 175G 2mS
Vibration: (operating) 1.0G (5 - 300Hz)
(non-operating) 5.0G (5 - 500Hz)
MTBF (hours): 1,200,000
Load/Unload Cycles: 600,000
Warranty: OWC 3 Year 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.

For more information about the OWC 3 Year Solution warranty, click here.
Note: Do not disassemble or otherwise open your OWC solution prior to the conclusion of OWC's 3 year Warranty period. Doing so will void the remainder of the OWC warranty.

48 Hour Warranty Service

  Backup Software Included
Software Included
PRoSoft Logo Prosoft Engineering® Data Backup 3
for Mac OS X v10.2.8 or later

Backup Made Easy. Data Backup makes it easy to backup to FireWire and USB drives, network drives, CDs and even DVDs. Make schedules so you don't need to 'think' about backing up... It does it for you. A $59.00 Value!
Intech Speed Tools logoIntech Speed Tools logo
Carbon Copy Cloner logo Carbon Copy Cloner® for Mac OS X 10.4 or later
CCC 3 features an interface designed to make the cloning and backup procedure very intuitive. In addition to general backup, CCC can also clone one hard drive to another, copying every single block or file to create an exact replica of your source hard drive. CCC's block-level copy offers the absolute best fidelity in the industry!
NovaStor NovaStor NovaBACKUP® Solution
for Windows®

NovaBACKUP has been helping millions of users recover from data loss and disasters for over 18 years. Feature rich, NovaBACKUP provides a powerful backup solution. Built-in support for hundreds of the most popular storage devices and a step-by-step backup and restore wizard makes NovaBACKUP extremely easy to use. Requires Windows 2000 or later. A $49.95 Value!
Intech Speed Tools logo Intech® SpeedTools Utilities™
Intech Hard Disk SpeedTools consists of a suite of utilities managed by an application which administers the launching, documentation and version control of each individual component utility, such as Disk Defrag and QuickBack. An easy-to-use installation and removal application is provided to make installation a snap, Intech SpeedTools is powerful enough to allow you to customize which utility component set you would like to create.
An $89.95 Value!
Use a custom drive icon

Every OWC drive ships with a custom drive icon to help differentiate it from your other Firewire and USB devices.

Get all the custom icons for OWC and NewerTech drive solutions here, as well as some original Time Machine icons.

Carry and protect your Mercury Elite drive in style with an OWC carrying case!
OWC HD Carry CaseIt's the perfect choice to tote your OWC Mercury Elite around in!

Black Cordura Nylon for the ultimate in durability
Side pouch for your power supply / FireWire/USB Cables!

Only $19.99!!!
Click Here for more info...

Position your Elite Pro horizontally!

With the Mercury Elite Pro Horizontal Enclosure Stand you can orientate your drive horizontally instead of vertically.

Buy one for each Elite Pro and stack several drives as your storage needs expand without taking up more room on the desk.


Need a vertical stand replacement?

Have you misplaced or re-purposed your original OWC Mercury Elite single bay "Stand" w/ rubber grip rail?

Never fear - replacements are available here.


OWC Mercury Elite-AL Pro Reviews & Awards

“Performance is exellent”
Loyd Case of ExtremeTech.com

“Works Perfectly”
Scott Vanderford of Club Overclockers

"Operates with plug-it-in-and-forget-it ease"
Issac Stolzenbach
of Layers Magazine

“Fast, quiet operation”
Dr. Macenstein of Macenstein.com

“One Bitchin' Fast Enclosure.”
Anthony Agius of MacTalk

“Based on Performance, Ruggedness, and Ease of Use, the Mercury Elite-Al Pro Quad Interface Earned 5 Stars.” Tom Nelson of About.com

Performance Benchmarks


eSATA benchmark results


fw800 benchmark results
FireWire 800 (1394B)


USB 2.0 benchmark results
USB 2.0

  fw400 benchmark results
FireWire 400 (1394A)
Click benchmark images
for larger view