Quality Solutions. Expert Support. Since 1988.

OWC Mercury
On-The-Go® Pro

500GB 7200 RPM
Bus-Powered, Multi-Interface Storage Solution

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) 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 USB 3.0 and FireWire 800, 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'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.
Fast and Reliable
The OWC Mercury On-The-Go uses the latest Oxford and ASMedia chipset for both USB 3.0 and FireWire 800. Designed to work with SATA hard drives and SSDs, this chipset is the latest evolution for the best performance 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 Bus-Powered, Multi-Interface, USB 3.0 & 2.0 / FireWire 800 (FireWire 400 Backwards Compatible) Storage Solution with Hard Drive
  • 15" High Quality Double Shielded FireWire 800 connecting cable (9-9 Pin cable)
  • 16" High Quality Double Shielded USB 3.0/2.0/1.1 certified connecting cable
  • Carrying Case
  • Pre-installed Backup and Utility software
    • 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
  • Over 1.5GB of Freeware/Shareware/Public domain software pre-installed
  • Assembly Manual & User Guide
  • OWC 3 Year Solution 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

Standard Mechanism

    500GB HGST Travelstar™ Z7K500 Specifications:

    Specifications

    Form Factor
    2.5″ HDD
    Interface
    SATA 6.0Gb/s
    Capacity1
    500GB
    Formatted Capacity2
    465GiB
    Rotational Speed
    7,200 RPM
    Cache / Data Buffer
    32MB
    Manufacturer Model Number
    HTS725050A7E630
    Format

    Physical

    Height (max)
    7mm (0.275″)
    Width (max)
    69.85mm (2.750″)
    Length (max)
    100.35mm (3.951″)
    Weight (typical)
    95g (0.209 lbs.)
    Bytes per Sector
    512
    Areal Density
    630Gb/in2

    Reliability3

    Contact Start-Stops
    600,000
    Warranty
    3 Year HGST Warranty

    Performance

    Transfer Rate (Max)
    600MB/s
    Track-to-track Seek
    1.0ms
    Average Seek Time
    13.0ms
    Average Latency
    4.2ms

    Power

    Maximum Start Current, DC
    5.5 Watts
    Seek Power
    2.1 Watts
    Read Power
    1.8 Watts
    Write Power
    1.8 Watts
    Idle Mode
    1.7 Watts
    Idle Mode, Active
    1.0 Watts
    Idle Mode, Low Power
    0.8 Watts
    Standby Mode
    0.2 Watts
    Sleep Mode
    0.1 Watts

    Environmental (Operating)

    Shock
    400 G max at 2ms
    Ambient Temperature (°F)
    32°F to 140°F
    Ambient Temperature (°C)
    0°C to 60°C
    Altitude
    -304.8 m to 3,048 m (-1,000 ft to 10,000+ ft)

    Environmental (Non-Operating)

    Shock
    1000 G max at 1ms
    Ambient Temperature (°F)
    -40°F to 149°F
    Ambient Temperature (°C)
    -40°C to 65°C
    Altitude
    -304.8 m to 12,192 m (-1000 ft to 40,000+ ft)

    Acoustics

    Idle (Typical)
    2.3 bels
    Seek (Typical)
    2.4 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.
  • 500GB* HGST Travelstar™ Z7K500 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

  • 32 Megabyte (32,768k)

Drive Rotation Speed

  • 7200RPM

Port Configuration

  • FireWire 800 – (2) 9 pin powered ports
  • USB 3.0 – (1) 9 pin mini B port

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

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

Format

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.

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

Enclosure Weight (no accessories)

  • 0.65lbs. (0.29kg)

Software Included

User Guide

Operating Environment:

Temperature

  • (operating) 5°C – 42°C (41°F – 107°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

3 Year OWC Solution Limited 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 3 Year OWC Solution Limited Warranty

Note: Do not disassemble or otherwise open your OWC solution prior to the conclusion of the 3 Year OWC Solution Limited Warranty period. Doing so will void the remainder of the OWC warranty.

Manufacturer provided specifications for Other World Computing p/n MS8U3H7500GB UPC#: 794504766820

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 / 5 118 out of 130 (91%) reviewers would recommend this product
1 2 3 4 5 6
Verified Buyer
Reviewer: Anonymous Location: California Age: Over 65 Experience Level: Home User Owned Product: 1-3 months
Rating: 4/5 solid performance January 21, 2016 As a backup for my digital music collection this is a fine product. I needed capacity and reliability at a reasonable price. I could wish for more transfer speed and perhaps more options for continuing backups, but those are quibbles not major concerns. OWC is a consistently good performer in my experience.

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 Location: Columbus, OH Age: 35-44 Experience Level: IT Professional Owned Product: 1-3 months
Rating: 5/5 A USB 3.0 drive that works with lots of drives connected! January 14, 2016 I have a couple of backup drives and several other USB peripherals connected through an industrial strength 7-port USB3 25W powered hub connected to my MacBook Pro. Basically all ports are full. I've tried out two other USB drives, and doing a clone from my internal SSD drive to them would inevitably end in errors, even when not connected through the hub! I think OWC's drive came with a better cable... it has shielding rings on both ends. (I tried the cable with a cheaper drive, and it worked.)

Thanks for a problem-free product all around, OWC!!

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 Location: Rochester, NY Age: 55-65 Experience Level: IT Professional Owned Product: 1-3 months
Rating: 5/5 Great product, reliable and the USB is a bonus January 14, 2016 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 Location: Gothenburg Sweden Age: Over 65 Experience Level: Home User Owned Product: over 6 months
Rating: 5/5 great product January 9, 2016 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 5400RPM Portable Bus Powered Solution..
Verified Buyer Top 100 Contributor
Reviewer: Anonymous Location: Chicago Experience Level: Home User Owned Product: over 6 months
Rating: 5/5 Speeds up back-ups from MBP greatly January 9, 2016 I have a late '08 MBP 2.53Ghz which I have upgraded with an SSD 480 Gb HD. It has rejuvenated it so much that I needed an external enclosure to place a spare 7200 rpm HD which could be used on both MBP with Firewire 800 & use USB-3 with my new 27" Imac. The Backups from the MBP via Firewire 800 to the 7200 HD is great, compared to my experience in the past with slower HD's. Of course, via USB-3 its faster still. Extremely pleased, gets a little warm but no worries.

I would recommend this item to a friend! This review is from OWC Mercury On-The-Go Portable 2.5" FW800/USB3.0 Enclosure Kit for Serial ATA (SATA) NoteBook Drives.

Verified Buyer
Reviewer: Anonymous Age: Over 65 Experience Level: Home User Owned Product: over 6 months
Rating: 5/5 Functional & affordable external hard drive December 27, 2015 I bought this to use as my Time Machine backup on my MacBook Pro. So far, it's been great. MacSales has a good reputation, and my own experience suggests that it's deserved. Highly recommended if you're looking for an external hard drive.

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 50 Contributor
Reviewer: Anonymous Location: Elizabeth, NJ Age: 55-65 Experience Level: IT Professional Owned Product: less than a month
Rating: 5/5 Can't Be Beat December 26, 2015 For the price and the quality, you can't beat the 1.0TB OWC Mercury On-The-Go Pro USB 3.0 / 2.0 5400RPM. I have a few older models 40GB and 100GB that I needed to replace as they aren't compatible with the newer iMacs. This drive is perfect. Plug and play. I use the Apple Time Machine with it and there are no configuration problems. I am pleased with my purchase as I am with anything I have bought from Macsales.

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 5400RPM Portable Bus Powered Solution..

Verified Buyer
Reviewer: Anonymous
Rating: 5/5 Sturdy, no complaints. December 22, 2015 This little drive feels very sturdy, compact yet it sits solidly on a flat surface. Not quite as cheap as some portable drives but this thing feels well worth the quality boost price.

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: NEPA Age: 45-54 Experience Level: Power User Owned Product: over 6 months
Rating: 5/5 These drives are great December 22, 2015 This is my 4th OWC Mercury and they are flawless. I have one in both laptops I own and now also have started using them externally as backup drives, as they have become so affordable. I don't even consider other drives when I buy.

The On the Go enclosure is very fast to assemble and high quality. I travel some 200 days a year and those enclosures never blink.

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 Location: New York, NY Age: Over 65 Owned Product: 1-3 months
Rating: 5/5 A very handy product December 21, 2015 The product is excellent and the customer support was superlative. It suited my needs for a new startup disk for both my old iMac, using Firewire 800 and for my Mac'Book Air, using the USB 3 port.

I would recommend this item to a friend! This review is from 120GB SSD OWC Mercury On-The-Go Oxford FireWire 800 / 400+USB3 SSD Portable Bus Powered Solution..

Verified Buyer
Reviewer: Anonymous Location: Chattanooga,Tn Age: 55-65 Experience Level: Power User Owned Product: 1-3 months
Rating: 5/5 Always as expected December 21, 2015 Every order has been perfection on what was advertised and performed perfectly . shipping was fast and tracking worked right on... Im happy and will always continue with 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 Top 250 Contributor
Reviewer: Anonymous Location: Exeter, RI Age: 55-65 Experience Level: IT Professional Owned Product: 1-3 months
Rating: 5/5 A great little hard drive enclosure December 11, 2015 I purchased this enclosure to provide access to the hard drive from my MacBook Pro while its logic board was being repaired -- a sad story involving a spilled glass of beer. :-( It performed flawlessly, as have all the drives and enclosures I've previously purchased from OWC.

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 Location: DC Age: 45-54 Experience Level: Home User Owned Product: 1-3 months
Rating: 5/5 Reliable backups at a reasonable price November 29, 2015 There are no bells or whistles with this -- you plug it in, you turn it up, you back up your computer. I regard this simplicity as a feature. The reliability has been rock-solid, as with every OWC drive I've bought.

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: Australia Age: 55-65 Experience Level: Power User Owned Product: 1-3 months
Rating: 5/5 Very nice unit. November 20, 2015 This is a quality product accomplishing everything it is supposed to do. Looks good, great build quality.

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: Monterey, CA Age: 55-65 Experience Level: Home User Owned Product: 1-3 months
Rating: 5/5 easy to setup October 1, 2015 works great and easy to setup

I would recommend this item to a friend! This review is from OWC Mercury On-The-Go Portable 2.5" FW800/USB3.0 Enclosure Kit for Serial ATA (SATA) NoteBook HDs.

Verified Buyer
Reviewer: Anonymous Age: 35-44 Experience Level: IT Professional Owned Product: over 6 months
Rating: 5/5 Best external backup for MacBook Pro September 25, 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 500GB OWC Mercury On-The-Go Pro USB 3.0 / 2.0 5400RPM Portable Bus Powered Solution..

Verified Buyer
Reviewer: Anonymous Location: Christchurch NZ Age: 45-54 Experience Level: Home User Owned Product: 3-4 months
Rating: 5/5 Backup drive September 24, 2015 I use this for a Timemachine back, daisy chained with the same drive which has a SSD as my secondary drive- all connected to a 2010 Mac mini, this way it does not slow the boot time that a USB drive did.

I would recommend this item to a friend! This review is from OWC Mercury On-The-Go Portable 2.5" FW800/USB3.0 Enclosure Kit for Serial ATA (SATA) NoteBook Drives.

Verified Buyer
Reviewer: Anonymous Location: Sequim, WA Age: Over 65 Experience Level: Home User Owned Product: 3-4 months
Rating: 5/5 Speed and stability. September 19, 2015 The 240GB SSD external matches up nicely with the 240 SSD internal - both from OWC giving me all the speed and stability I can expect out of my macBook plus lower power consumption. Almost like a processor upgrade. Once again I'm completely satisfied with an OWC product.

I would recommend this item to a friend! This review is from 240GB SSD OWC Mercury On-The-Go Pro USB 3.0 / 2.0 SSD Portable Bus Powered Solution..

Verified Buyer
Reviewer: Anonymous Location: Los Angeles Age: 35-44 Experience Level: Home User Owned Product: 1-3 months
Rating: 5/5 Excellent product... excellent company. September 9, 2015 This external hard drive is small and extremely functional. I like buying from OWC because they are swift in their deliveries, they have high quality products and excellent customer service and warranty options. Thanks OWC!

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 Location: Fresno, CA Age: 55-65 Experience Level: Power User Owned Product: less than a month
Rating: 4/5 Clear is Good! August 29, 2015 I just got this enclosure, OWC was giving them for free with the purchase of certain hard drives, so I ended up with one. I can see that when I put my old 120GB SSD drive in it I'll always be able to see the size of the drive and not have to make an external tag to remind me. Brand new it's very pretty, if I remember I'll write later on about how well it looks after some wear and tear.

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 Location: Suburban Chicago Age: Over 65 Experience Level: Home User Owned Product: 1-3 months
Rating: 5/5 Great product. August 27, 2015 This product is great. I have two other drives of the same kind and they work flawlessly.

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: Chicago, IL Age: 55-65 Experience Level: Home User Owned Product: 1-3 months
Rating: 4/5 Handy portable exterior HD. August 24, 2015 I've had it for a little over a month. So far it's great, easy to use and good value. It seems well made, comes in a leatherette case with a USB3 cable and does NOT need a separate power source.

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: WV Age: Over 65 Experience Level: Home User Owned Product: 1-3 months
Rating: 5/5 Does What It Is Intended To Do August 20, 2015 This is my 3rd Mercury drive. I am pleased with Mercury construction. The cases are built to last. This is the 1st SSD I've owned. I wanted to experience the difference between HD's and SSD's. The SSD has no moving parts so it is less likely to breakdown. It also should last longer. I am using this drive as an onsite backup storage device. My previous backup showed signs of imminent failure. I transferred the Time Machine folder to the Mercury SSD, then declared it as the new backup location. Time Machine recognized it and all was good to go. I also use the Mercury SSD to store data that I seldom use. In the 3 months I've had this drive it has performed silently and reliably. The only problem I've encountered with it is occasionally the disk image doesn't mount on the desktop after the computer is taken out of sleep mode. I restart the computer and it mounts just fine. I also like the style of this unit. I recommend the Mercury On-The-Go SSD

I would recommend this item to a friend! This review is from 480GB SSD OWC Mercury On-The-Go Pro USB 3.0 / 2.0 SSD Portable Bus Powered Solution..

Verified Buyer
Reviewer: Anonymous Location: Sweden Age: Over 65 Experience Level: IT Professional Owned Product: 1-3 months
Rating: 5/5 New life for old miniMac August 13, 2015 Since my very old MiniMac had become very slow I considered to let it rest and get a new one. Then I read about the Mercury on the go and decided I would try it. It became like new and I am sure it will serve my purpose for a long time.

I would recommend this item to a friend! This review is from 120GB SSD OWC Mercury On-The-Go Oxford FireWire 800 / 400+USB3 SSD Portable Bus Powered Solution..

Verified Buyer Top 250 Contributor
Reviewer: Anonymous Location: SF Bay area Age: 55-65 Experience Level: Home User Owned Product: over 6 months
Rating: 5/5 Most versatile backup solution for mac August 8, 2015 The GoPro is a super-versatile solution (with both firewire 400 and 800 ports) that allows me to use it to back up both my vintage powerbook and my brand new macbook pro. Great, sturdy design. Thinking of buying another one.

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.