Seagate FreeAgent GoFlex Ultra-portable Drive (1.5TB)

Seagate FreeAgent GoFlex Ultra-portable Drive review: A very versatile storage solution from Seagate.

  • Review
  • Specs
  • Images
  • User Reviews (1)
  • Buy Now 2
Seagate FreeAgent GoFlex Ultra-portable Drive
  • Expert Rating

    4.50 / 5
  • User Rating

    0.50 / 5 (of 1 Review)


  • Flexibility to select your own connection, USB 3.0


  • No uninstaller for some parts of the included software for Macs

Bottom Line

The Seagate FreeAgent GoFlex Ultra-portable Drive is a fantastically versatile storage system. It allows an investment in compact and portable hard drives up to huge capacities, that can then be easily connected to any computer with a USB 2.0, USB 3.0, FireWire or eSATA connector. No other hard drive manufacturer has devised a system so simple yet effective.

Would you buy this?

  • Buy now (Selling at 2 stores)

  • Freeagent Goflex 320gb Ultra–portable Baredrive... 99.00
  • GoFlex Satellite HDD 500G Black (Avail: In Stock) 216.00
See all prices

Also available to buy is a docking station that lets you stream your Seagate drive's video content to your TV.

The Seagate FreeAgent GoFlex TV HD Media Player is a video adaptor which accepts one of these GoFlex drives and lets you play out its video files to a high-definition TV.

There's also a NAS-like dock adaptor, the Seagate FreeAgent GoFlex Net Media Sharing Device, that lets you share two Seagate GoFlex drives over your local network, with a gigabit Ethernet connection.

The Seagate FreeAgent GoFlex Ultra-portable Drive is finished in a black plastic case with shiny gloss finish. As well as picking up fingerprints all too easily, it is also easy scratched. There's no carry case in the packaging we'd advised you to pack it carefully when travelling so that it doesn't get too marked.

Included with the drive is additional software for Windows and Mac users. For Windows, there's the Seagate Dashboard management tool for backup and encryption, designed by content-management software developer Memeo.

For the Mac, there's a 30-day trial version of Memeo Premium software, with a full version of the basic Backup app also included.

There's also an NTFS file system driver from Paragon Software in the Mac software bundle, said to enable write as well as read access on NTFS Windows volumes for Mac OS X users.

This only seems to work with the connected Seagate FreeAgent GoFlex Ultra-portable Drive though — we still couldn't write to our Windows Boot Camp partition with this driver in place, nor another brand's NTFS-formatted external hard drive.

Install such freebie software with caution though. We can't vouch for the Windows version, but installing the default apps for Mac involves inserting Seagate kernel extensions and other low-level processes into the operating system, for which Seagate provides no uninstaller.

Lab Results

We tested the Seagate FreeAgent GoFlex Ultra-portable Drive with both its original USB 3.0 interface adaptor, and a separately available FireWire 800 connection kit.

Windows testing was carried out on our Chillblast Antec Skeleton PC test rig, with Gigabyte GA-X58A-UD3R motherboard, Intel Core i7-920 and 6GB RAM. Operating system was Windows Home Premium 64-bit.

For FireWire 800 testing, we used an Apple MacBook Pro (4,1) with SATA SSD and 6GB RAM, running Windows Ultimate 64-bit and Mac OS X 10.6.5.

You Ess Bee Three

In the ATTO Disk Benchmark for Windows, the Seagate FreeAgent GoFlex Ultra-portable Drive achieved a maximum read speed of 98.7MBps and write speed of 98.5MBps. In the CrystalDiskMark 3.0 test, we saw similar performance of 97.3MBps for both read and writes.

That's quick — in fact, we'd wager that's the native intrinsic speed of the 5400rpm disk drive inside the Seagate FreeAgent GoFlex Ultra-portable Drive.

Turning to FireWire 800 on the MacBook Pro, the HD Tach benchmark showed us average read and write speeds of 65.6MBps and 24.7MBps for the quicker Short test; the Long test revealed similar read speeds of 65.4MBps, while the average write speed increased to 34.6MBps. Burst speed for both these tests was around 74MBps.

HD Tune Pro had a similar story to tell: reads and writes averaged 65MBps and 39MBps respectively.

Those are excellent FireWire 800 results, beating our previous-fastest G-Technology G-Drive mobile 500GB drive with its 59MBps read score; although that drive also does keep the record for writing speed, with its slightly faster write performance of around 50MBps in the same benchmark test.

To finish off, we tried some real-world file copy tests in Mac OS X. With a 872MB ISO test file, the Seagate drive could transfer the file to the Mac in 15 seconds, equating to a read speed of 58MBps; then was copied back to the drive in 19 secs, suggesting a good average write speed of 46MBps.

The Seagate FreeAgent GoFlex Ultra-portable Drive is a fantastically versatile storage system. It allows an investment in compact and portable hard drives up to huge capacities, that can then be easily connected to any computer with a USB 2.0, USB 3.0, FireWire or eSATA connector. No other hard drive manufacturer has devised a system so simple yet effective. We hope to test the network adaptor kit in a later review. In our tests, the 1.5TB version of the Seagate FreeAgent GoFlex Ultra-portable Drive had incredibly quick performance, nigh-on 100MBps with USB 3.0, and it was also one of the fastest FireWire 800 drives we've tested too. This drive comes heartily recommended.

Keep up with the latest tech news, reviews and previews by subscribing to the Good Gear Guide newsletter.

Read more on these topics: external hard drives, seagate, storage, Seagate FreeAgent



4 months ago Melissa J. Perenson reviewed what looks like the same drive. Her comments were less favourable. She suggested that this drive was slow in comparison to other drives of this type. Now it's got the 'editor's choice' seal of approval and 'incredibly quick performance'. Has something changed or is there something fishy going on here ?



Actually, there is a difference. This one has USB 3 and it's $20 cheaper. My bad.



The photos on Seagate's website (eg model STBA1000100) looks somewhat different to the one you posted, though fits your specs. Do you know if this drive is available in Australia, or if not (i could not find a retailer or online store), which online store sells it into Australia?

muslih munchy


seagate freeAgent goflex ultra-portable drive 500GB external hard is very very slow why? am using Windows 7 ultimate, 1GB ram 32-bit Intel (R) pentium (R) Dual CPU E2220 @2.40GHz 2.39 GHz 60GB(C) 90GB(D)



This drive has its own character. I connected it with my USB 3.0 port on my laptop and started a backup. The writing speed starts with acceptable 50 MB/s sometimes up to 90 MB/s when it gets a chance to write large files. This is OK. However, over time the drive gets more and more slowly. After 6 hours the drive is writing at a speed of 11 MB/s even when copying large files.
One experiment was very interesting: When it was writing a large file at 11MB/s (after 6 hours of backing up) I cancelled the copy process and shutdown. The next morning I tried to continue my backup, starting with the same file that I cancelled the night before. The writing speed started with 60 MB/s (the same file). However, after 1 hour the same slow down effect happened again.
Looks like the drive is heating up or is building up controller problems over time that slows down the device. Or it needs an oil check or something.....
My next hard drive will be anything else, but not a Seagate

Post new comment

Users posting comments agree to the PC World comments policy.

Login or register to link comments to your user profile, or you may also post a comment without being logged in.




Does not need an external power supply
Slows down over time. Not usable as a backup device
• • •

One experiment says it all:
Writing a large file after the drive was busy for several hours: Slow writing speed.(11 MB/s)
Writing the same file the next morning after the system was shutdown over night: Writing speed is accceptable (60 MB/s).
Not the type of device I like to work with.

Most Popular Reviews

Follow Us

Best Deals on GoodGearGuide

Latest News Articles


GGG Evaluation Team

Kathy Cassidy


First impression on unpacking the Q702 test unit was the solid feel and clean, minimalist styling.

Anthony Grifoni


For work use, Microsoft Word and Excel programs pre-installed on the device are adequate for preparing short documents.

Steph Mundell


The Fujitsu LifeBook UH574 allowed for great mobility without being obnoxiously heavy or clunky. Its twelve hours of battery life did not disappoint.

Andrew Mitsi


The screen was particularly good. It is bright and visible from most angles, however heat is an issue, particularly around the Windows button on the front, and on the back where the battery housing is located.

Simon Harriott


My first impression after unboxing the Q702 is that it is a nice looking unit. Styling is somewhat minimalist but very effective. The tablet part, once detached, has a nice weight, and no buttons or switches are located in awkward or intrusive positions.

Latest Jobs

Don’t have an account? Sign up here

Don't have an account? Sign up now

Forgot password?