Quality Solutions. Expert Support. Since 1988.

OWC Mercury
On-The-Go®

0GB
Bus-Powered, Multi-Interface Enclosure Kit

Mac / PC / USB 3.0 & 2.0 / FireWire 800 (FireWire 400 Backwards Compatible)
  • Mac
  • PC
  • FireWire 800/400
  • USB 3.0
The OWC Mercury On-The-Go USB 3.0 & 2.0 / FireWire 800 (FireWire 400 Backwards Compatible) Enclosure Kit packs an incredible punch into a 3″ W x 5.5″ L x 1″ H 11 ounce package!
If you're looking for one of the most compatible mass storage solutions made, look no further! The OWC Mercury On-The-Go drive is all you'll need! Packing a one-two punch of super fast USB 3.0 and FireWire 800, the OWC Mercury On-The-Go has what it takes to truly work cross platform.
Outstanding Features
The OWC Mercury On-The-Go features the latest in performance with an Oxford combination FireWire and USB chipset creating one perfectly integrated storage solution.

The OWC Mercury On-The-Go's fanless design offers near silent operation while still keeping your drive cool. The built-in aluminum heatsink underneath the drive and passthrough cooling vents on the top of the case work in tandem to provide optimum results.

The On-The-Go "Add your own Drive" Kit enclosure is ready to accept your own 2.5" SATA Hard Drive or SSD. Now you can upgrade your Mac or PC notebook's internal drive and retask that old drive as a new external drive for even more backup and storage capacity! This solution will give you an excellent transportable storage device, or a backup option that you may have not had!
 Drive Not Included – Needs 2.5" Serial ATA (SATA) Hard Drive or Solid State Drive
2.5" sata hard drive
OWC NOTE: This drive enclosure requires a 2.5" Serial ATA (SATA) drive mechanism.

Includes

Mercury On-The-Go includes
  • OWC Mercury On-The-Go Pro Bus-Powered, Multi-Interface, USB 3.0 & 2.0 / FireWire 800 (FireWire 400 Backwards Compatible) Enclosure Kit for SATA 2.5" Hard Drives
  • 15" High Quality Double Shielded FireWire 800 connecting cable (9-9 Pin cable)
  • 18" High Quality Double Shielded USB 3.0/2.0/1.1 (9 pin mini A – B) certified connecting cable
  • Carrying Case
  • Assembly Manual & User Guide
  • 1 Year OWC Enclosure Limited Warranty with 48-Hour Turnaround Time

Gallery

Product Specifications:

Bus Interface

  • FireWire 1394B (IEE1394A/B/iLink Compliant), 2 9 Pin (powered) ports, backwards compatible with FireWire 400 (9-Pin to 6-Pin Cable) – requires FireWire 800 to 400 Cable/Adapter for use with 1394A Interface, see related items.
  • USB 3.0 / 2.0 / 1.1 Backwards compatible 9 pin mini "B" port.

Cables

  • All cables included. The USB cable connects to systems with USB, USB 2.0, and USB 3.0. No additional USB cable is needed to connect the drive.

Chipset

  • Oxford 944 and ASMedia 1051e FireWire/USB chipset

Drive Mechanisms Supported

Max Data Transfer Rate

  • FireWire 800 – 100MB/sec
  • FireWire 400 – 50MB/sec
  • USB 3.0 – 500MB/sec
  • USB 2.0 – 60MB/sec
  • USB 1.1 – 1.5MB/sec

Macintosh System Requirements

  • Mac OS 8.6 to 9.2.2 compatible, OS X 10.1.x and later. (10.2 or later required for FW800 and USB 3.0)
  • FireWire 800: Macintosh with FireWire 800 interface, either built in or via PCI FireWire 800 card.
  • FireWire 400: Macintosh with FireWire 400 interface, either built in or via PCI FireWire 400 card.
  • USB 3.0: Macintosh with USB 3.0 interface, either built in or via PCI USB 3.0 card.
  • USB 2.0: Macintosh with USB 2.0 interface, either built in or via PCI USB 2.0 card.

Port/Interface Bootability

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

Windows System Requirements

  • FireWire 800: PC with FireWire 800 interface, either built in or via PCI FireWire 800 card.
  • FireWire 400: PC with FireWire 400 interface, either built in or via PCI FireWire 400 card.
  • USB 3.0: PC with USB 3.0 interface, either built in or via PCI USB 3.0 card.
  • USB 2.0: PC with USB 2.0 interface, either built in or via PCI USB 2.0 card.

Linux Requirements

  • Linux compatible via supported USB and FireWire interfaces.

Related Items

Power Supply*

  • Bus Power via FireWire 800 supported on all models equipped with an available FireWire 800 port either factory stock or via add on FireWire 800 PCI Card.
  • Bus Power via FireWire 400 on all models made in 2001 or later via Factory ports or any model with add on FireWire 400 PCI Card.
  • Bus power via USB on most computers with factory installed USB 2.0 or USB 3.0 port.
  • Optional AC Adapter* (available as a separate purchase here)
    * AC adapter not required for most applications provided computer bus supplies appropriate power needs.

External Case Dimensions

  • 3.5" (W) x 5.5" (D) x 1" (H)
  • 88.9mm x 139.7mm x 25.4mm

Unit Weight (no mechanism)

  • 0.44lbs. (0.19kg)

Product Manual

Operating Environment:

Temperature

  • Dependent on mechanism installed

Relative Humidity

  • Dependent on mechanism installed

Vibration

  • Dependent on mechanism installed

MTBF (hours)

  • Dependent on mechanism installed

Warranty

1 Year OWC Enclosure Limited 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.

View more information about the 1 Year OWC Enclosure Limited Warranty
Manufacturer provided specifications for Other World Computing p/n MSTG800U3K UPC#: 736211773258

Reviews/Awards

Customer Ratings

Write a Review 4.8 / 5 147 out of 160 (92%) reviewers would recommend this product
1 2 3 4 5 6 7
Verified Buyer
Reviewer: Anonymous Location: Atlanta, GA Age: Over 65 Experience Level: Power User
Rating: 4/5 Exactly what I wanted July 3, 2016 Wanted a portable hard drive using bus power to be able to backup my MacBookPro

I would recommend this item to a friend! This review is from 500GB OWC Mercury On-The-Go Portable FW800&400/USB3 7200RPM Bus Powered.

Verified Buyer
Reviewer: Anonymous Location: Syracuse, NY Age: 55-65 Experience Level: Home User Owned Product: 1-3 months
Rating: 5/5 Excellelent Product! July 2, 2016 Excellent External drive! Fast drive in a small size.

I would recommend this item to a friend! This review is from 1.0TB OWC Mercury On-The-Go Pro USB 3.0 / 2.0 7200RPM Portable Bus Powered Solution..

Verified Buyer
Reviewer: Anonymous Location: Irvington, NY Age: Over 65 Experience Level: Power User Owned Product: 3-4 months
Rating: 5/5 Works great, looks great June 20, 2016 Durable, fast-fast-fast, external drive, Its rounded plastic case is practically bulletproof. I'm using it as backup for my photos and for my Photoshop and On1 caches.

I would recommend this item to a friend! This review is from 1.0TB OWC Mercury On-The-Go Pro Portable FW800&400/USB3 7200RPM Storage Solution.

Verified Buyer
Reviewer: Anonymous Location: OH Age: 55-65 Experience Level: Power User Owned Product: 5-6 months
Rating: 5/5 I now buy drives only from OWC June 17, 2016 I bought this to clone laptop drive via SuperDuper and previously a 2Tb one for Time Machine. I bought a 750GB one in 2011 to clone another laptop. I also own two Elite Pros to backup an iMac and all five drives have performed admirably for me. Spare yourself poor quality and frequent failures and shop OWC.

I would recommend this item to a friend! This review is from 500GB OWC Mercury On-The-Go Pro USB 3.0 / 2.0 5400RPM Portable Bus Powered Solution..

Verified Buyer
Reviewer: Anonymous Location: Maine Age: Over 65 Experience Level: Home User Owned Product: 1-3 months
Rating: 4/5 Good product but cable too short June 13, 2016 This portable hard drive works well, efficiently , and quietly as part of my backup strategy. I trust OWC products from long experience with them.

Unfortunately there is one disappointment. The FireWire connection cable that came with the hard drive is much too short to be truly useful. It is difficult to use it with my iMac and reach the drive sitting on my desk near the computer. OWC should provide a longer cable for this product.

Other than that. it's a fine product.

I would recommend this item to a friend! This review is from 500GB OWC Mercury On-The-Go Portable FW800&400/USB3 5400RPM Storage Solution.

Verified Buyer
Reviewer: Anonymous Location: Saugerties, NY Age: Over 65 Experience Level: Power User Owned Product: 1-3 months
Rating: 4/5 Silent and easy setup. May 30, 2016 A small. silent and cool running unit. Using it as a redundant backup drive for my OWC Elite Pro Dual 6Tb which houses all the work files freed from my 1Tb 2010 iMac. Lots of open space left on all the hard drives now. It lacks a Thunderbolt port so it cannot connect directly to the Elite Pro Dual and has to be routed by my iMac via USB2 for slower than desired backups. As a photographer, I leave it always connected for frequent backups of work in progress.The OWC tech person said that should not be a concern. The resiliency of the clear plastic housing is a concern. The large bright LED is annoying.

I would recommend this item to a friend! This review is from 2.0TB OWC Mercury On-The-Go Pro USB 3.0 / 2.0 5400RPM Portable Bus Powered Solution..

Verified Buyer
Reviewer: Kier Location: Puyallup, WA Age: 45-54 Experience Level: Power User Owned Product: 3-4 months
Rating: 5/5 Great drive! May 29, 2016 My goal with this drive is to keep my working photos on this drive so that I could move between editing on my MacPro at home and Mac Book Pro on the road and it works perfectly. I love the speed and it looks great and best of all it's bus powered so no extra power supply. You've got to get one of these!

I would recommend this item to a friend! This review is from 240GB SSD OWC Mercury On-The-Go Oxford FireWire 800 / 400+USB3 SSD Portable Bus Powered Solution..

Verified Buyer Top 250 Contributor
Reviewer: Anonymous Location: New York City Age: 55-65 Experience Level: IT Professional Owned Product: over 6 months
Rating: 5/5 My personal data bank May 28, 2016 Still saving my but across the years resurrecting old drives.

I would recommend this item to a friend!

Verified Buyer
Reviewer: Anonymous Location: Philadelphia, PA Age: Over 65 Experience Level: Home User Owned Product: 1-3 months
Rating: 5/5 So surprised at the speed! May 15, 2016 I knew what to expect with the body, the weight and the sturdiness of this drive, but I had no idea of how good the speed would be. With previous 500 OWC Mercury On-The-Go USB drives, I always had dependability in making a clone of my internal hard drive, but the process usually took an hour, at least. The first few times I used this new drive, I was convinced that something was wrong...the entire process takes less than 10 minutes! It's wonderful! Totally worth the extra cost and I am totally happy and satisfied with the performance of the device.

I would recommend this item to a friend! This review is from 500GB OWC Mercury On-The-Go Pro USB 3.0 / 2.0 7200RPM Portable Bus Powered Solution..

Verified Buyer
Reviewer: Anonymous Location: Mead, WA Age: Over 65 Experience Level: Power User Owned Product: 1-3 months
Rating: 5/5 Super drive May 12, 2016 It does exactly what it was designed for- high praise in a high tech word. This replaced my La Cie drive when my back-ups exceeded its capacity. This drive just feels much better as a performer and I have a much greater level of trust in this unit.

I would recommend this item to a friend! This review is from 1.0TB OWC Mercury On-The-Go Pro Portable FW800&400/USB3 5400RPM Storage Solution.

Verified Buyer
Reviewer: Anonymous Location: Blainville, quebec Canada Age: 55-65 Experience Level: Home User Owned Product: over 6 months
Rating: 5/5 ease of use May 1, 2016 It is my seconda one and I am really pleased but, it could better if we have much more choice of interface, Firewire lightning, etc.

I would recommend this item to a friend! This review is from OWC Mercury On-The-Go Pro 2.5" Portable USB 3.0 Enclosure for SATA NoteBook HDs.

Verified Buyer Top 250 Contributor
Reviewer: Anonymous Location: Nashville TN area Age: 55-65 Experience Level: Home User Owned Product: 1-3 months
Rating: 5/5 More than I needed, but glad I have it! April 21, 2016 Now that OWC explained the DIY SSD's to me, I purchased this case not realizing I really didn't need portability, but that I did need the option of USB 3.0 & FireWire. So this was a good move. Like all the products I've purchased from OWC so far, no glitches, no issues, the OWC Mercury On-The-Go Portable 2.5" FW800/USB3.0 went straight to work.

I would recommend this item to a friend!

Verified Buyer
Reviewer: Anonymous Location: Baltimore, MD Age: 35-44 Experience Level: Hobbiest Owned Product: over 6 months
Rating: 5/5 Great Product April 4, 2016 Easy To Used.

I would recommend this item to a friend!

Verified Buyer Top 250 Contributor
Reviewer: Anonymous Location: Pensacola, FL Age: 55-65 Experience Level: Power User Owned Product: over 6 months
Rating: 5/5 Simply Awesome! April 3, 2016 Rather than wipe and destroy a SATA hard drive that I replaced with a solid-state drive that I purchased from OWC, I saw this as an option to continue using the SATA hard drive. The assembly process was simple, thanks to the comprehensive tutorial. Everything is included here, even the USB cables. As an added benefit, the drive is powered by the USB cable, so no separate power cable is needed. I now have a bootable drive that I can use when I travel. The padded carrying case protects the drive and holds the cable.

I would recommend this item to a friend! This review is from OWC Mercury On-The-Go Pro 2.5" Portable USB 3.0 Enclosure for SATA NoteBook HDs.

Verified Buyer Top 100 Contributor
Reviewer: Anonymous Location: Tucson, AZ Age: 55-65 Experience Level: Power User Owned Product: 1-3 months
Rating: 5/5 High quality, reasonable price. March 23, 2016 During the last two months I have placed multiple orders for hardware for my clients. I have never been disappointed with OWC products, information and support. I always choose OWC for mission critical hardware for myself and my clients. OWC equals stress free.

This review is from 2.0TB OWC Mercury On-The-Go Pro USB 3.0 / 2.0 5400RPM Portable Bus Powered Solution..

Verified Buyer
Reviewer: Anonymous Location: Montreal, Quebec Age: Over 65 Experience Level: Home User Owned Product: 1-3 months
Rating: 5/5 This is a great product to have, easy to use and affordable. March 16, 2016 I would recommend this item to a friend! This review is from 500GB OWC Mercury On-The-Go Pro USB 3.0 / 2.0 7200RPM Portable Bus Powered Solution..
Verified Buyer Top 250 Contributor
Reviewer: Anonymous Location: Philadelphia, PA Age: 55-65 Experience Level: Power User Owned Product: over 6 months
Rating: 5/5 I use it every day March 15, 2016 It's fast, efficient, and portable. I use Pro Tools at work, at home and on the road. I have a 1TB SSD in it which holds a lot of big sessions. This drive is always with me so my latest projects are always right at hand if I have an inspiration, or need to fix something quick. I can use it in my studios, or on my laptop in bed (my favorite way to work). Couldn't do without it.

I would recommend this item to a friend!

Verified Buyer
Reviewer: Anonymous Location: North Carolina Age: Over 65 Experience Level: IT Professional Owned Product: 1-3 months
Rating: 5/5 Outstanding Drive March 10, 2016 I've ordered these drives before and have been very pleased with their performance and reliability. Great drive for the money....

I would recommend this item to a friend! This review is from 1.0TB OWC Mercury On-The-Go Pro Portable FW800&400/USB3 7200RPM Storage Solution.

Verified Buyer
Reviewer: Anonymous
Rating: 5/5 Great Little Enclosure ! March 4, 2016 I would recommend this item to a friend! This review is from OWC Mercury On-The-Go Pro 2.5" Portable USB 3.0 Enclosure for SATA NoteBook HDs.
Verified Buyer
Reviewer: Anonymous
Rating: 5/5 Great Little Enclosure ! March 4, 2016 I would recommend this item to a friend!
Verified Buyer
Reviewer: Anonymous Location: Marietta, GA Age: 55-65 Experience Level: Power User Owned Product: 1-3 months
Rating: 5/5 Excellent product February 29, 2016 Excellent product. Good service.

I would recommend this item to a friend! This review is from 1.0TB OWC Mercury On-The-Go Pro USB 3.0 / 2.0 7200RPM Portable Bus Powered Solution..

Verified Buyer Top 250 Contributor
Reviewer: Anonymous Location: Alaska Age: 45-54 Experience Level: Power User Owned Product: over 6 months
Rating: 5/5 Love these mobile devices February 21, 2016 I love these mobile devices, particularly the fact that they do not require a separate power unit. Big plus!

Overall performance has always been excellent. I highly recommend!

I would recommend this item to a friend! This review is from 750GB OWC Mercury On-The-Go Pro Portable FW800&400/USB2 7200RPM Storage Solution.

Verified Buyer Top 250 Contributor
Reviewer: Anonymous Location: Alaska Age: 45-54 Experience Level: Power User Owned Product: 1-3 months
Rating: 5/5 Love these mobile devices! February 21, 2016 I love these mobile devices, particularly the fact that they do not require a separate power unit. Big plus!

Overall performance has always been excellent. I highly recommend!

I would recommend this item to a friend! This review is from 1.0TB OWC Mercury On-The-Go Pro USB 3.0 / 2.0 7200RPM Portable Bus Powered Solution..

Verified Buyer Top 250 Contributor
Reviewer: Anonymous Location: Alaska Age: 45-54 Experience Level: Power User Owned Product: 1-3 months
Rating: 5/5 Love these mobile devices! February 21, 2016 I love these mobile devices, particularly the fact that they do not require a separate power unit. Big plus!

Overall performance has always been excellent. I highly recommend!

I would recommend this item to a friend! This review is from 2.0TB OWC Mercury On-The-Go Pro USB 3.0 / 2.0 5400RPM Portable Bus Powered Solution..

Verified Buyer
Reviewer: Anonymous Age: 25-34 Experience Level: Home User Owned Product: 3-4 months
Rating: 5/5 very nice product with quality February 19, 2016 I would recommend this item to a friend! This review is from OWC Mercury On-The-Go Pro 2.5" Portable USB 3.0 Enclosure for SATA NoteBook HDs.