Exit Preview and return to our Standard Site

Free Shipping Gift BoxFree shipping for US customers on all orders over $35. More Details & international rates here. »

Description: Ships: Price:
1.0TB OWC Mercury On-The-Go USB 3.0 / 2.0 5400RPM 8MB Cache Portable SATA 2.5" based Solution. All Cables, Carrying Case, Prosoft Data Backup, Intech HD SpeedTools included. 3 year OWC Limited Warranty. (OWCMSU35S1GB8) Same Day $114.99
CyberSaver Price: $84.75
Rating: 4.8 based on 117 reviews.
Add to Your Basket:

OWC Mercury
On-The-Go® Pro

1.0TB USB 3.0 & 2.0 Storage Solution

Mac / PC / USB 3.0 & 2.0
  • Mac
  • PC
  • USB 3.0
The OWC Mercury On-The-Go USB 3.0 & 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! 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. 
SuperSpeed Ready, Yet Backward Compatible
The OWC Mercury On-The-Go can be used with any Macintosh or PC with a USB 3.0 & 2.0 port. Now you can have SuperSpeed performance up to 500MB/s and compatibility with legacy machines!
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 »


  • OWC Mercury On-The-Go Pro USB 3.0 & 2.0 storage solution
  • High Quality Double Shielded USB 3.0 & 2.0 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
  • Assembly Manual & User Guide
  • Over 1.5GB of Freeware/Shareware/Public domain software pre-installed
  • OWC 3 Year Solution Warranty with 48-Hour Turnaround Time


Product Specifications:

Bus Interface

  • USB 3.0 & 2.0 Backwards compatible port.


  • ASMedia 1051e USB 3.0 chipset

Standard Mechanism

    1.0TB Western Digital Scorpio Blue Specifications:


    Form Factor
    2.5″ HDD
    SATA 6Gb/s
    Formatted Capacity2
    Rotational Speed
    5400 RPM
    Cache / Data Buffer
    Manufacturer Model Number


    Height (max)
    9.5mm (0.374″)
    Width (max)
    69.85mm (2.75″)
    Length (max)
    100.2mm (3.94″)
    Weight (typical)
    0.11kg (0.24 lbs.)
    Guaranteed Sectors


    2 Year OWC Fulfilled Limited Warranty


    Transfer Rate (Max)
    6.0 Gb/s
    Average Latency


    Read Power
    1.4 Watts
    Write Power
    1.4 Watts
    Idle Mode
    0.59 Watts
    Standby Mode
    0.18 Watts
    Sleep Mode
    0.18 Watts

    Environmental (Operating)

    Ambient Temperature (°F)
    32°F to 140°F
    Ambient Temperature (°C)
    0°C to 60°C
    -1,000 feet to 10,000 feet

    Environmental (Non-Operating)

    Ambient Temperature (°F)
    0°F to 149°F
    Ambient Temperature (°C)
    -40°C to 65°C
    Relative Humidity (non-condensing)
    5% to 95%
    -1,000 feet to 40,000 feet


    Idle (Typical)
    2.4 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* Western Digital Scorpio Blue 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) Revision 3.0

Drive Cache Size

  • 8 Megabyte (8,192k)

Drive Rotation Speed

  • 5400RPM

Max Data Transfer Rate

  • USB 3.0 – 500MB/s
  • USB 2.0 – 60MB/s

Port/Interface Bootability

  • Can I use this solution as an external startup drive?
  • 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


System Requirements

  • Macintosh: Macintosh OS 8.6 to 9.2.2, OS X 10.2.x or later including 'Mavericks' 10.9.x, and an available USB 3.0 port. Time Machine® Compatible: Mac OS X 10.5 (version introduced) and later.
  • PC: Windows Vista, XP, 2000, NT, 98, and an available USB 3.0 port.
  • Linux: Linux compatible via supported the USB interface.

Power Supply*

  • 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

Total Shipping Weight

  • Less than 10.1 oz. (.28kg) with drive, 6.8 oz. (.19kg) bare enclosure

Software Included

User Guide

Recommended USB 3.0 Cards

Operating Environment:


  • (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)


  • (operating) 70G 2mS;
  • (non-operating) 175G 2mS


  • (operating) 1.0G (5 – 300Hz)
  • (non-operating) 5.0G (5 – 500Hz)


  • More than 300,000 power-on hours

Load/Unload Cycles

  • 600,000


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 OWCMSU35S1GB8 UPC#: 736211770851


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 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


Click any of the benchmarks below to view the results.
OWC 1.0TB OWC On-The-Go® Pro Mfr P/N: OWCMSU35S1GB8 OWC SKU: OWCMSU35S1GB8 USB 3.0 & 2.0 Storage Solution 3 Year OWC Solution Limited Warranty Ships: Same Day only $84.75 Add to CartOther World Computing OWCMSU35S1GB8 In Stock, Click to Buy Now