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OWC Mercury Elite Pro

4.0TB 7200 RPM Storage Solution

Mac / PC / USB 3.1 Gen 1 / FireWire 800 (FireWire 400 Backwards Compatible) / eSATA
Outstanding Features
High Performance
Next-gen high-speed chipsets combined with the fastest SATA drive mechanisms available allow Mercury Elite Pro Solutions to deliver the fastest single drive transfer rates possible, up to 300 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 3 Year OWC Solution Limited 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) USB 3.1 Gen 1 (backward compatible with USB 2.0/1.1), (2) FireWire 800(1394B), and (1) eSATA ports for easy Plug and Play on virtually ANY system! Even the cables are included!
Style
Designed to complement 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.
From day one, the OWC Mercury Elite Pro Series has been designed to be everything you would hope for and more!

Includes

  • OWC Mercury Elite Pro External Drive
  • High Quality Double Shielded eSATA connecting cable (eSATA - eSATA)
  • High Quality Double Shielded FireWire 800 connecting cable (9-9 Pin cable)
  • High Quality Double Shielded USB 3.0 Standard-B to Standard-A (backward compatible with USB 2.0/1.1) connecting cable
  • UL Listed U.S./International Auto Switching 100 ~ 240v input, 50/60Hz input, 12 Volt 3 Amp output Power Supply (adapter plugs for International use sold separately). For replacement power supply, click here.
  • Vertical Stand
  • Mercury Elite Pro Assembly Manual & User Guide (1.3 MB)

Gallery

Product Specifications

Specifications
  • Total Capacity
    • 4.0TB
  • Total Solution Cache Size
    • 128 MB
  • Standard Mechanism
    • (1) 4TB Toshiba MD04ACA Series 7,200RPM Hard Disk Drive with 128 MB cache
    • *OWC reserves the right to replace or upgrade to equivalent or better components.
  • Chipset
    • JMicron JMB355 / JMicron JMS562
  • Drive Interface
    • SATA
  • Format
  • Rotational Speed
    • 7,200RPM
  • Plug and Play
    • Yes
Reliability
  • MTBF (Mean Time Between Failures)
    • 1,400,000 hours
  • Contact Start Stops
    • 600,000
Compatibility
  • Mac OS Compatibility
    • Mac OS 8.6
    • Mac OS 9.0
    • Mac OS 9.1
    • Mac OS 9.2
    • Mac OS X 10.0 Cheetah
    • Mac OS X 10.1 Puma
    • Mac OS X 10.2 Jaguar
    • Mac OS X 10.3 Panther
    • Mac OS X 10.4 Tiger
    • Mac OS X 10.5 Leopard
    • Mac OS X 10.6 Snow Leopard
    • Mac OS X 10.7 Lion
    • Mac OS X 10.8 Mountain Lion
    • OS X 10.9 Mavericks
    • OS X 10.10 Yosemite
    • OS X 10.11 El Capitan
    • macOS 10.12 Sierra
  • PC OS Compatibility
    • Windows XP
    • Windows XP 64-bit Edition
    • Windows XP Professional x64 Edition
    • Windows Vista
    • Windows 7 32-bit Edition
    • Windows 7 64-bit Edition
    • Windows 8 32-bit Edition
    • Windows 8 64-bit Edition
    • Windows 8.1 32-bit Edition
    • Windows 8.1 64-bit Edition
    • Windows 10 32-bit Edition
    • Windows 10 64-bit Edition
  • Other OS Compatibility
    • Linux supported via USB and FireWire interfaces
  • Other Requirements
    • Mac OS X 10.2 or later required for FireWire 800 and USB 3.0
    • Windows 2000 or later required for FireWire 800 and eSATA
    • Time Machine Compatible: Mac OS X 10.5 (version introduced) and later
Power
  • Power Supply
    • External power supply
  • External Power Adapter
    • Yes
Physical
  • Number of Bays
    • 1
  • Security Slot
    • Yes
  • Power Button
    • Yes
  • Power/Activity LED
    • Yes
  • Housing Color
    • Aluminum
  • Dimensions
    • Height: 11.7 cm (4.6 in)
    • Length: 22.9 cm (9.0 in)
    • Width: 3.8 cm (1.5 in)
  • Weight
    • 1.2 kg (2.65 lbs)
Environmental
  • Altitude
    • Operating: -304.8 m to 3,048.0 m (-1,000 ft to 10,000 ft)
    • Non-Operating: -304.8 m to 12,192.0 m (-1,000 ft to 40,000 ft)
  • Humidity
    • Operating: 8% to 90% non-condensing
    • Non-Operating: 5% to 95% non-condensing
Manufacturer provided specifications for OWC p/n OWCME3QH7T4.0

Reviews

Videos


Customer Ratings

Write a Review 4.8 / 5 119 out of 127 (94%) reviewers would recommend this product
1 2 3 4 5 6
Verified Buyer
Reviewer: DocCanFixIt
Rating: 5/5 High quality external enclosure July 16, 2021 I needed a replacement external drive for my back ups. But I needed an enclosure that had FireWire 800 connections for my older iMac. This fit the bill perfectly, and I put a 4 TB hard drive in it so now it matches the storage capacity of my internal iMac 4 TB solid-state drive

I would recommend this item to a friend! This review is from (*) OWC Mercury Elite Pro eSATA, FireWire 400/800 & USB 3.0/2.0/1.1 Enclosure Kit.

Response from OWC, Support July 16, 2021 Thank you for your 5/5 review! We are so glad to hear that you were able to locate a compatible drive for your needs with the FireWire800 connectivity you were needing to match the internal storage capacity in your iMac! We hope you continue to enjoy your new drive enclosure for many years to come!
Verified Buyer
Reviewer: VT_Video
Rating: 4/5 Delivered as ordered. July 6, 2021 No surprises. Helps keep my beloved classic Mac Pro chugging along.

I would recommend this item to a friend! This review is from (*) OWC Mercury Elite Pro eSATA, FireWire 400/800 & USB 3.0/2.0/1.1 Enclosure Kit.

Response from OWC, Support July 8, 2021 Great to hear! Love to see the good old Firewire still working well!
Verified Buyer
Reviewer: FriendlyAngelfish-7262
Rating: 5/5 Another great product from a great company ! June 29, 2021 The quality and attention to detail in their products never disappoints specially these days when things are made in China and are not complete and instructions are cryptic at best . Good Job Guys !!

I would recommend this item to a friend! This review is from 2.0TB OWC Mercury Elite Pro 7200RPM Storage Solution with USB3.1 Gen 1 + eSATA + FW800/400.

Response from OWC, Support June 29, 2021 We appreciate the kind review, thank you for your continued business and hope to hear from you again!
Verified Buyer
Reviewer: BetterBee-89311
Rating: 5/5 i have had nothing but great experiences with owc June 29, 2021 i have had nothing but great experiences with owc

I would recommend this item to a friend! This review is from 8.0TB OWC Mercury Elite Pro 7200RPM Storage Solution with USB3.1 Gen 1 + eSATA + FW800/400.

Response from OWC, Support June 29, 2021 Thank you so much for the review and we are so glad that you love your 8TB OWC Mercury Elite Pro. We always try to make every experience with us amazing. Please feel free to contact me if you have any further questions, comments, or concerns.
Verified Buyer
Reviewer: PowerfulStingray-29368
Rating: 5/5 Great Products and service June 22, 2021 I’ve made many purchases over the years through OWC and they’ve always gone well. Good prices, knowledgeable staff when needed and quality products keep me coming back. Highly recommended.

I would recommend this item to a friend!

Response from OWC, Support June 22, 2021 Thank you for providing us with the feedback! We are delighted to hear you are pleased with our products and services. We looking forward to the future orders with OWC!
Verified Buyer
Reviewer: PatGarrett
Rating: 5/5 Suits my Need May 28, 2021 Having been pleased with a similar item purchased for computer back up, I bought this one to transfer archived images from old backups in danger of malfunction.

I would recommend this item to a friend!

Verified Buyer
Reviewer: BlushingSailfish-54689
Rating: 2/5 Noisy and unreliable May 8, 2021 I bought 2 6tb drives to backup/replace 2 that I bought a few months ago, hoping that the first two were unusually unreliable. Noisy, always "hunting", hot. Sometimes they appear, sometimes not. So I now have two paired drives and hope that only one of each pair will fail at a time.

This review is from 6.0TB OWC Mercury Elite Pro 7200RPM Storage Solution with USB3.1 Gen 1 + eSATA + FW800/400.

Verified Buyer
Reviewer: mwmiller-63042
Rating: 5/5 Seamless integration. May 6, 2021 I had this drive up and running in minutes, to replace one that was showing signs of wear. The transfer of data took a bit longer, but all done by dinner!

I would recommend this item to a friend!

Verified Buyer
Reviewer: RyanC123
Rating: 5/5 Consistently great product May 2, 2021 Well made, well functioning external hard drive. This line of product has consistently performed well over the years.

I would recommend this item to a friend! This review is from 12.0TB OWC Mercury Elite Pro 7200RPM Storage Solution with USB3.1 Gen 1 + eSATA + FW800/400.

Verified Buyer
Reviewer: khgriffith
Rating: 4/5 Solid, Reliable drives. April 30, 2021 This single drive replaced THREE older Mercury Drives used for archiving, now reaching end of life, with room to spare! OWC is my go to for kit for my pampered classic Mac Pro Workstations.

I would recommend this item to a friend! This review is from 1.0TB OWC Mercury Elite Pro 7200RPM Storage Solution with USB3.1 Gen 1 + eSATA + FW800/400.

Verified Buyer
Reviewer: eldharma
Rating: 5/5 OWC 4.0TB OWC Mercury Elite Pro April 23, 2021 My go to back up drive for Time Machine, works flawlessly!

I would recommend this item to a friend!

Verified Buyer
Reviewer: DaWeve Location: Missouri Age: Over 65 Experience Level: Home User Owned Product: over 6 months
Rating: 5/5 Trusty backup August 10, 2020 I use this for backing up my iMac.

It's fast and price is right.

I would recommend this item to a friend!

Verified Buyer
Reviewer: Mike64 Location: Kingman, AZ Age: 55-65 Experience Level: Home User Owned Product: 1-3 months
Rating: 5/5 A Very Nice Addition August 2, 2020 A great looking piece to enclose and operate a hard drive. The aluminum case is cool looking with the blue light shining when on. So far it works great and still looks great.

I would recommend this item to a friend! This review is from OWC Mercury Elite Pro eSATA, FireWire 400/800 & USB3.1 Gen 1/2.0/1.1 Enclosure Kit.

Verified Buyer Top 100 Contributor
Reviewer: byebyegtech Location: Calgary, AB, Canada Age: 55-65 Experience Level: Power User Owned Product: over 6 months
Rating: 5/5 Solid As A Rock October 17, 2019 I love these drives and own several. They're reliable, durable, and I'll move to their solid-state cousins with a wee nostalgic pang when the time comes.

Recommended.

Incidentally, I use these as my every day external audio drives in my Voiceover business and I've used previous generations of these drives for many years now.

I would recommend this item to a friend! This review is from (*) 3.0TB OWC Mercury Elite Pro 7200RPM Storage Solution with USB3.1 Gen 1 + eSATA + FW800/400.

Verified Buyer Top 50 Contributor
Reviewer: philharve Location: Falmouth, Cornwall, UNITED KINGDOM Age: Over 65 Experience Level: IT Professional Owned Product: over 6 months
Rating: 5/5 4.0TB OWC Mercury Elite Pro 7200RPM eSATA/FW800/FW400/USB3.1 Gen 1 Storage October 21, 2018 I previously purchased a 5.0TB model and it has proven utterly reliable. This convinced me to buy another but I could not afford to go up in capacity so I dropped down to 4.0TB. I have yet to press this new HDD into service,

Verified Buyer
Reviewer: 30YearMacUser Location: San Francisco Bay Area, CA Age: 55-65 Experience Level: Power User Owned Product: over 6 months
Rating: 5/5 A robust storage solution for many Mac models! September 10, 2018 I have been purchasing these drives for many years to serve as individual Time Machine backup drives for each of our computers. I now have an external media hard drive for my own Mac to free up space on the internal hard drive. These drives are durable, reasonably quick, and very versatile. Given their modest price, you really get your money's worth!

I would recommend this item to a friend! This review is from 2.0TB OWC Mercury Elite Pro 7200RPM Storage Solution with USB3.1 Gen 1 + eSATA + FW800/400.

Verified Buyer
Reviewer: MaxEh Location: Canada Experience Level: Home User Owned Product: less than a month
Rating: 5/5 Bridges the past and future August 5, 2018 Still running an older iMac so no USB-C etc. best I can do is FW800. Have other peripherals at FW400. My philosophy is if it is not really broken make do. Planned upgrade this fall to new iMac. Still using an older Neptune drive from 2006 (the IDE drive finally died earlier this year and was replaced with a new one). I anticipate getting the same long life out of this unit! Time will tell - wait (or not) for my next product review.

I would recommend this item to a friend! This review is from OWC Mercury Elite Pro eSATA, FireWire 400/800 & USB3.1 Gen 1/2.0/1.1 Enclosure Kit.

Verified Buyer
Reviewer: DickB405 Location: Hawthorne, CA Age: Over 65 Experience Level: Power User Owned Product: 1-3 months
Rating: 5/5 How Come Great Reviews are Boring? July 25, 2018 So...another Excellent review of the whole OWC PROCESS: * Shopping and ordering: clean and simple. Easy to find product that matches my specs. * Delivery: prompt and on time (packaging,too). * Installation and setup: 5 minutes. That's why I keep coming back to OWC.

I would recommend this item to a friend! This review is from 1.0TB OWC Mercury Elite Pro 7200RPM Storage Solution with USB3.1 Gen 1 + eSATA + FW800/400.

Verified Buyer
Reviewer: ProPhoto Location: Chicago Age: 55-65 Experience Level: Power User Owned Product: over 6 months
Rating: 5/5 Elite external hard drives July 20, 2018 I'm running NINE Elite drives on my mac pro tower. Being a commercial photographer I have terabytes of RAW & JPEG files from the last 15 years I need immediate access to. None of these drives has ever disappointed me.

I would recommend this item to a friend! This review is from 10.0TB OWC Mercury Elite Pro 7200RPM Storage Solution with USB3.1 Gen 1 + eSATA + FW800/400.

Verified Buyer
Reviewer: Markdavid Location: Olivia MN Experience Level: Power User
Rating: 5/5 I am now in year 2018 and this is still going great March 28, 2018 2 Terabyte hard drive I bought to match my new computer for Time machine backup. That is all it does and is running great still. Has done great for backups and especially reloads of the whole system on many occasions.

I would recommend this item to a friend! This review is from 2.0TB OWC Mercury Elite Pro 7200RPM Storage Solution with USB3.1 Gen 1 + eSATA + FW800/400.

Verified Buyer
Reviewer: SirSquataLot Location: Los Angeles Age: Over 65 Experience Level: Power User Owned Product: 1-3 months
Rating: 5/5 Mercury Elite Pro Backup March 26, 2018 I have a couple of Mercury Elite Pro disk drives to backup 2 iMacs. I have been very happy with their ease of setup, speed and quiet performance. Options are available for every system requirement.

I would recommend this item to a friend! This review is from 1.0TB OWC Mercury Elite Pro 7200RPM Storage Solution with USB3.1 Gen 1 + eSATA + FW800/400.

Verified Buyer
Reviewer: stevedallas Location: Dallas, TX Age: Over 65 Experience Level: Power User Owned Product: less than a month
Rating: 5/5 Excellent value and it does what it says it does. March 25, 2018 I needed an external disk enclosure for an 8TB drive and this fit the bill. It is well made and a great value.

I would recommend this item to a friend! This review is from OWC Mercury Elite Pro eSATA, FireWire 400/800 & USB3.1 Gen 1/2.0/1.1 Enclosure Kit.

Verified Buyer
Reviewer: Chacapamac Location: Quebec, Canada Age: 55-65 Experience Level: Power User Owned Product: 1-3 months
Rating: 5/5 Just get it not to long ago but working perfectly? February 6, 2018 This is to replace a laCie 3TB Thunderbolt that became a brick when I upgrade Mountain Lion to El Capitan. This was not a disk failure, something in Apple update didn’t work well with my trusty LaCie enclosure. (You can see that type of problem with the lasts Apple updates ???) — The OWC disk came to my door in few days, network by firewire, No problems, fast and quiet. Important for me as this is my backup strategy with Carbon Copy Cloner. More, my main internal disk become corrupted after the last Apple Security fix (What’s wrong with Apple) and the backup on the OWC disk save my skin. I was able to reformat the internal apple disk and clone my OWC to it without a hitch. Great product

I would recommend this item to a friend! This review is from (*) 3.0TB OWC Mercury Elite Pro 7200RPM Storage Solution with USB3.1 Gen 1 + eSATA + FW800/400.

Verified Buyer
Reviewer: iCompute
Rating: 4/5 Good drive January 12, 2018 Good product. Good price. Quick delivery. Flawless performance - so far. Xfer speed to drive is excellent.

Verified Buyer
Reviewer: Mdwycyoff Location: Indiana Age: 55-65 Experience Level: Power User Owned Product: less than a month
Rating: 5/5 Outstanding value for older Macs with FireWire, still speedy with newer USB3 devices January 9, 2018 "You can never be to rich or have too many backups." Part 2 (Part 1 is my review of the 6TB hard drive now installed in this enclosure.)

So why use this FireWire and USB enclosure? Why not a Thunderbolt enclosure? Price! I'm thrifty. (My spouse says 'Admit it, you're a cheapskate!') This older FireWire and USB3 enclosure was much more cost effective for my backup needs than a Thunderbolt enclosure. This enclosure also has USB3 for the newer, speedier Macs in my family. Because the primary purpose for this drive is Time Machine backups, not active storage, a difference is throughput is not significant. It only becomes relevant when restoring data. As part of my backup strategy, I also make a weekly Clone of my primary storage device to another external drive, so I'd likely never need to restore the entire machine in the event that the primary storage drive fails.

Why not just use Network-Attached-Storage? It's part of my total backup strategy, but no longer the PRIMARY backup means. Several years ago, I began using a major brand of Ethernet-ready NAS (but NON-Apple) network-attached-storage enclosures using RAID1 for multiple Time Machine backups for all of the 6 Macs in my home network.

Over time I encountered enough 'For reliability, Time Machine needs to begin a new backup' messages that I began to doubt the wisdom of Ethernet-connected NAS drives as a primary strategy. My Time Machine backups performed over Wifi seem especially prone to 'New Backup' messages. So I moved back to directly attached Time Machine backup drives for each of our family of Macs, using portable USB drives for the laptops, Firewire drives for my iMac, and Thunderbolt-connected enclosures for my Mac mini media server.

So what and I doing with the Ethernet NAS enclosures? Because you can add both direct-connect and network devices to a Time Machine backup rotation, as part of my total backup strategy, the laptops, the Mac mini, and my iMac still continue to do Time Machine backups to the NAS drives, using wired Ethernet for the best reliability.

I've only had this enclosure in operation for a week, so I haven't checked 'durability' as a Pro for this product. With no fan, I don't expect any problems with durability of this enclosure, and the drive runs very cool in operation, so lack of a fan is not a shortcoming in this case.

I would recommend this item to a friend! This review is from (*) OWC Mercury Elite Pro eSATA, FireWire 400/800 & USB 3.0/2.0/1.1 Enclosure Kit.

OWC 4.0TB OWC Mercury Elite Pro Mfr P/N: ME3QH7T4.0 OWC SKU: OWCME3QH7T4.0 Storage Solution 3 Year OWC Limited Warranty Ships: Same Day only $229.00
Add to CartOther World Computing ME3QH7T4.0 In Stock, Click to Buy Now
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