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We recommend 1.0TB OWC Mercury On-The-Go Pro Portable FW800&400/USB3 5400RPM Storage Solution (Mfr P/N: MS8U3H5T1.0) from Other World Computing for $109.88 as a suitable alternative.

OWC On-The-Go Pro

1.0TB Triple Interface Storage Solution

Mac / PC / FireWire 800 / FireWire 400 / USB 2.0 & 1.1
  • Mac
  • PC
  • FireWire 800/400
  • USB
The OWC Mercury On-The-Go FireWire 800/400 + USB 2.0 Storage Solution provides maximum storage in an ultra-portable, totally bus powered design!
Stylishly engineered in a sleek, impact-resistant acrylic enclosure, the Mercury On-The-Go Pro incorporates shock-isolation technology to give maximum protection for your precious data inside. The Mercury On-The-Go Pro is a true must-have for users like you who are seeking High-Performance and Highly Reliable storage weighing less than 11 ounces and that is small enough to fit in your pocket.
Outstanding Features
Compact and Versatile
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 FireWire 800 and USB 2.0, the OWC Mercury On-The-Go has what it takes to truly work cross platform. The Mercury On-The-Go Pro is bus-powered, so it doesn't require an AC adapter!
Cool and Silent
The OWC Mercury On-The-Go keeps everything running silent while still keeping your drive cool with a built in aluminum heatsink underneath the hard drive, and passthrough cooling vents on the top of the case.
Fast and Reliable
The OWC Mercury On-The-Go drive uses the latest Oxford chipset for both FireWire 800/400 and USB 2.0. Designed to work with SATA hard drives, this chipset is the latest evolution of the best performing FireWire chipsets on the market.
Speedtools
Includes the Powerful SpeedTools Utility Suite for Mac
The comprehensive Mac utility used by professionals for accurate Mac diagnosis and maintenance. Click the SOFTWARE tab below to learn more »

Includes

Mercury On-The-Go includes
  • OWC Mercury On-The-Go Pro FireWire 800/400 + USB 2.0 storage solution
  • 15" High Quality Double Shielded FireWire 800 connecting cable (9-9 Pin cable)
  • 16" High Quality Double Shielded USB 2.0 certified connecting cable
  • Carrying Case
  • 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
  • On-The-Go Pro Assembly Manual (4.9MB PDF)
  • Over 1.5GB of Freeware/Shareware/Public domain software installed
  • OWC 3 Year Solution Warranty with 48-Hour Turnaround Time
  • Complimentary Level 1 Data Recovery

Gallery

Product Specifications:

Chipset

  • Oxford 943 FireWire/USB chipset

Standard Mechanism

    1.0TB Toshiba MK1059GSM Specifications:

    Specifications

    Form Factor
    2.5″ HDD
    Interface
    SATA 3.0Gb/s
    Capacity1
    1.0TB
    Formatted Capacity2
    931GiB
    Rotational Speed
    5,400 RPM
    Cache / Data Buffer
    8MB
    Manufacturer Model Number
    MK1059GSM
    RoHS Compliant
    Yes
    Format

    Physical

    Height (max)
    9.5mm (0.370″)
    Width (max)
    69.85mm (2.750″)
    Length (max)
    100.35mm (3.951″)
    Weight (typical)
    148g (0.326 lbs.)
    Data Heads
    3
    Number of Disks
    6

    Reliability3

    Warranty
    3 Year Toshiba Warranty

    Performance

    Transfer Rate (Max)
    3.0 Gb/s
    Track-to-track Seek
    2ms
    Average Seek Time
    12ms
    Average Latency
    5.55ms

    Power

    Maximum Start Current, DC
    4.5 Watts
    Seek Power
    2.2 Watts
    Read Power
    1.7 Watts
    Write Power
    1.7 Watts
    Idle Mode, Active
    0.65 Watts
    Standby Mode
    0.18 Watts
    Sleep Mode
    0.15 Watts

    Environmental (Operating)

    Shock
    400 G max at 2ms
    Ambient Temperature (°F)
    41°F to 131°F
    Ambient Temperature (°C)
    5°C to 55°C
    Vibration
    9.8 m/s² (1.0G) 5 to 500 Hz
    Altitude
    -304.8 m to 3,048 m (-1,000 ft to 10,000+ ft)

    Environmental (Non-Operating)

    Shock
    900 G max at 1ms
    Ambient Temperature (°F)
    -40°F to 140°F
    Ambient Temperature (°C)
    -40°C to 60°C
    Vibration
    49 m/s² (5.0G) 15 to 500Hz
    Altitude
    -304.8 m to 12,192 m (-1000 ft to 40,000+ ft)

    Acoustics

    Idle (Typical)
    2.5 bels
    Seek (Typical)
    2.5 bels
    1. 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.
    2. In terms of standard gigabytes, 1GiB ≈ 1.074GB and refers to the actual formatted capacity of shown under Mac OS 10.5 or earlier and Microsoft Windows OS.
    3. Specific application environments such as temperature and duty cycle will affect the overall reliability rates.
  • 1.0TB* Toshiba MK1059GSM 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 Interface

  • SATA (Serial ATA)

Drive Cache Size

  • 8 Megabyte (8,1922k)

Drive Rotation Speed

  • 5400RPM

Port Configuration

  • FireWire 800 - (2) 9 pin powered ports
  • USB 2.0/1.1 - (1) 5 pin mini B port

Max Data Transfer Rate

  • 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 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 2.0: Supported on Macs and PC's meeting minimum requirements. - Click for more info

Format

Macintosh System Requirements

  • 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. Including ‘Lion’ 10.7.x and an available USB2.0/1.1 or FireWire 800/400 port.
  • Time Machine® Compatible: Mac OS X 10.5 (version introduced) and later.

Windows System Requirements

  • 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. or FireWire 800/400 port.

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 USB 2.0 port factory stock.
  • 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

Enclosure Weight (no accessories)

  • 0.72lbs. (0.32kg)

Software Included

Product Manual

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

  • 70G 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 - we're proud to provide a superior level of support and service coverage to our customers. OWC and NewerTech storage solutions come fully backed by an Industry-leading 48-hour turnaround time which includes complimentary Level 1 data recovery for the first year, plus additional data recovery options available throughout the warranty period, for complete peace of mind ownership confidence.

View more information about the OWC 3 Year Solution warranty

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.

Manufacturer provided specifications for Other World Computing p/n MS8U5T1GB8 UPC#: 718122777778

Software

Prosoft Macworld 4.5 miceProsoft
Prosoft Engineering® Data Backup 3 for 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! View detailed software info, or click here to purchase softwareseparately from solution
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! View detailed software info
Intech SpeedTools Utilities
Intech® SpeedTools Utilities™
Intech SpeedTools consists of a suite of utilities managed by an application which controls 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, yet powerful enough to allow you to customize which utility component set you would like to create.
An $89.95 Value! View detailed software info, or click here to purchase software separately from solution

Reviews/Awards

Benchmarks

Click any of the benchmarks below to view the results.

Customer Ratings

Write a Review 4.8 / 5 200 out of 214 (93%) reviewers would recommend this product
Verified Buyer
Reviewer: KlownGuy Location: Portland, ME Age: 55-65 Experience Level: Power User Owned Product: over 6 months
Rating: 5/5 Seven years ago.... April 26, 2018 I bought this portable hard drive in 2011 and it is still working great! Just bought a new one!!

I would recommend this item to a friend! This review is from (*) 500GB OWC Mercury On-The-Go Portable FW800&400/USB2 7200RPM Bus Powered. Customer Videos:

Verified Buyer Top 250 Contributor
Reviewer: Chimpur Location: Toronto,On Age: 25-34 Experience Level: Power User Owned Product: over 6 months
Rating: 5/5 Solid drive Enclosure November 26, 2017 This is a stylish and durable drive enclosure. It comes with all the cables you'd need as well. I use it to put various versions of OS X on it and use it as rescue disk.

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. Customer Videos:

Verified Buyer
Reviewer: JFMorris Location: Huntsville, Alabama Age: 45-54 Experience Level: IT Professional Owned Product: over 6 months
Rating: 5/5 Great drive year after year! October 24, 2017 I've been using this 1TB drive for years now, and its been one of my most reliable portable drives ever. Just keeps on working, and I like the transparent case.

I would recommend this item to a friend! Customer Videos:

Verified Buyer
Reviewer: SavvySeniorLady Location: South Carolina Age: Over 65 Experience Level: Home User Owned Product: 1-3 months
Rating: 5/5 Best price; guaranteed product; speedy delivery June 27, 2017 I only consider OWC for computer products. The ordering process is simple, especially with all the online support videos and info. Products are all guaranteed; online videos give full, easy and clear installation instructions. Finally, every time I have ever needed guidance, the support staff has been wonderful. Satisfied customer of many years.

I would recommend this item to a friend! This review is from 320GB OWC Mercury On-The-Go Portable FW800&400/USB2 5400RPM Bus Powered Solution. Customer Videos:

Verified Buyer
Reviewer: peterl7 Location: Austarlia Age: 45-54 Experience Level: Power User Owned Product: 1-3 months
Rating: 5/5 great product January 17, 2017 great unit

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. Customer Videos:

Verified Buyer Top 100 Contributor
Reviewer: MPandP Location: Ca Experience Level: Power User Owned Product: over 6 months
Rating: 5/5 My go to file tranfer device November 11, 2016 I prefer this when transferring data.. dependable and buss powered too. Easy to set up and format.. Mac and PC friendly..

I would recommend this item to a friend! This review is from 320GB OWC Mercury On-The-Go Portable FW800&400/USB2 7200RPM Bus Powered. Customer Videos:

Verified Buyer
Reviewer: DocFather Location: Bangkok, Thailand Age: Over 65 Experience Level: Home User Owned Product: over 6 months
Rating: 5/5 As with several previous OWC On-The-Go HD I am very happy with this 750GB September 3, 2016 I would recommend this item to a friend! This review is from 750GB OWC Mercury On-The-Go Pro Portable FW800&400/USB2 5400RPM Storage Solution. Customer Videos:
Verified Buyer
Reviewer: nickyname
Rating: 4/5 nice drive August 19, 2016 have not had ANY problem with ANY product from MacSales!

thank you.

I would recommend this item to a friend! This review is from 320GB OWC Mercury On-The-Go Portable FW800&400/USB2 5400RPM Bus Powered Solution. Customer Videos:

Verified Buyer Top 250 Contributor
Reviewer: Anonymous Location: California Age: Over 65 Experience Level: Power User Owned Product: less than a month
Rating: 5/5 It keeps on ticking! July 24, 2016 Just getting around to a review, but I've been using this particular drive to make backup clones for nearly 7 years now. Still works perfectly, and I recommend these drives highly.

I would recommend this item to a friend! This review is from (*) 500GB OWC Mercury On-The-Go Portable FW800&400/USB2 5400RPM Storage Solution.

Verified Buyer Top 250 Contributor
Reviewer: Anonymous Location: California Age: Over 65 Experience Level: Power User Owned Product: less than a month
Rating: 5/5 Great Drive July 24, 2016 I'm a bit late reviewing this drive, which I've now been using for 5 years. I bought it for a clone backup, and I've got a few other drives like this one (all less than 1 TB, though). Never a failure, just a great little backup drive and I'm 100% satisfied with this line. It fits perfectly in my bank safe deposit box, also can be carried with me when necessary. Very small footprint. My favorite backup drive.

I would recommend this item to a friend!

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
Reviewer: Anonymous Location: Iowa Age: Over 65 Experience Level: Home User Owned Product: over 6 months
Rating: 5/5 Simple and powerful December 19, 2015 The best of my 5 external hard-drives. Easy to use.

I would recommend this item to a friend! This review is from 320GB OWC Mercury On-The-Go Portable FW800&400/USB2 5400RPM Bus Powered Solution.

Verified Buyer Top 250 Contributor
Reviewer: Anonymous Location: Exeter, RI Age: 55-65 Experience Level: IT Professional Owned Product: over 6 months
Rating: 5/5 My lifesaver December 11, 2015 I've used this drive to back up my Macs for almost four years. Having a reliable backup has saved my bacon more than once. The drive has performed quietly and flawlessly for all this time. I enthusiastically recommend it.

I would recommend this item to a friend! This review is from 1.0TB OWC Mercury On-The-Go Pro Portable FW800&400/USB2 5400RPM Storage Solution.

Verified Buyer
Reviewer: Anonymous Age: 35-44 Experience Level: IT Professional Owned Product: over 6 months
Rating: 5/5 Best external backup drive for a MacBook Pro November 3, 2015 I have used these Mercury On-the-Go enclosures for many, many years and have owned about six of them. I continuously upgraded as new / different bus connections became available. Not a single one ever gave me a problem. Easy to upgrade the drives inside as you upgrade the capacity of your laptop. Fast enough for backups or even booting if necessary. I use these to clone my internal drives and tend to use the FireWire 800 port. They get warm during longer (45m) backups, but that's what the heat sink is for, and they never get super hot. You can rely on them. Has a power switch if you want to keep them plugged in but off. Bus powered, so no need for external power. Small, light, and durable enough to keep in a backpack or laptop bag. Only gripe is that you may not like the small blue light on the controller board. It is not annoying, I prefer it, but it does exist and may annoy you if you are Donny Darko.

I would recommend this item to a friend! This review is from 320GB OWC Mercury On-The-Go Portable FW800&400/USB2 7200RPM Bus Powered.

Verified Buyer
Reviewer: agster Location: Mid-West Age: 55-65 Experience Level: IT Professional Owned Product: over 6 months
Rating: 5/5 Excellent solution to my VM requirements March 13, 2012 I have been using the OWC external drives for many years and rely on them for back-ups, Virtual Machines to host various applicaions for digital printing and color management, and booting specialized versions of operating systems to test new software. In every case, these devices have performed flawlessly.

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
Reviewer: Trebla Location: SoCal Age: 55-65 Experience Level: Power User Owned Product: less than a month
Rating: 4/5 Not Quite a Triple March 7, 2012 OK, I should have been even more careful reading the micro-print and examining the images, but OWC has never mislead me in the many years I have used their services Note the "Triple" refers to the chip set, not the ports, It has only FW800 and USB2, but no FW400. I thought this would be the ideal backup drive for my older iMac which has FW400 but not FW800. I would have ordered a converter if it were more obvious.

I would recommend this item to a friend! This review is from (*) 500GB OWC Mercury On-The-Go Portable FW800&400/USB2 5400RPM Storage Solution.

Reviewer: maclover Location: albuquerque, NM Age: 35-44 Experience Level: Power User Owned Product: over 6 months
Rating: 5/5 Well made reliable drive July 5, 2011 The 500 gb drive is well made. It has never failed me. This hard drive is a bit more $$ than other drives, but peace of mind is everything. Customer service at OWC is great. They are knowledgeable. You speak with someone in the U.S. Shipping was the same day as order.

The software is great to use, if choose not to use time machine.

I will be ordering more for both my plastic windows OS and my favorite aluminum MAC OSX. Three year warranty is outstanding.

I would recommend this item to a friend! This review is from (*) 500GB OWC Mercury On-The-Go Portable FW800&400/USB2 7200RPM Bus Powered.

Reviewer: sirmixalot Location: Lake in the Hills, IL Age: 25-34 Experience Level: Power User Owned Product: over 6 months
Rating: 5/5 Wicked cool. May 11, 2011 I've used this drive as a solid work drive for some 2 years now, and I'm still impressed with its look, speed, and dependability. It's a rock solid trooper whose clear plastic case which reveals the 2.5 inch drive still looks cool to me. Call me a geek but I still like seeing the insides of electronics. It's definitely a unique looking drive.

Portable with fw800 speed is one heckuva combo, and using it to create much of what you see on the owc web site, email, and more is proof positive this is a solid drive for work and play.

I would recommend this item to a friend! This review is from (*) 500GB OWC Mercury On-The-Go Portable FW800&400/USB2 5400RPM Storage Solution.