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Seagate Backup Plus Fast 4TB USB 3.0 Drive Review

  1. Introduction
  2. Packaging, Specifications and Product Images
  3. Test Setup and Methodology
  4. AS SSD Benchmark
  5. ATTO Benchmark
  6. CrystalDisk Benchmark
  7. HD Tune Pro Benchmark
  8. Transfer Tests
  9. Conclusion
  10. Online Purchase Links
  11. View All

I have the Seagate Backup Plus Fast 4TB USB 3.0 drive with me. One main point you should you know is that this drive is a 2x 2TB drive in RAID 0 mode. This is something you’ll not get to see, especially for a portable storage solution via USB 3.0.

As far as promises goes, Seagate assures that this drive will perform at up to 2x the speed in comparison with other portable hard drives. The best part is that you don’t need a power brick/adapter to power it up. But just in case, Seagate provided a USB 3.0 Y-cables. How fast can you expect this drive to be in reality? As far as numbers goes, Seagate says that it can provide transfer speeds of up to 220MB/s.

As always, we’ll know if its good or bad as we progress with the review.

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Seagate maintains its generic illustration and packaging as it did with previous Seagate portable drives.

As said in the introduction, Seagate drives comes a Y-cable for those setups that would need to provide extra power to drive 2x HDDs via USB 3.0. There’s also a standard single port USB 3.0 cable and an instruction manual.

spec_seagate backup plus fast 4TB
What’s strange is that Seagate did not mention it anywhere that this is a RAID 0 drive. Even in the spec sheet and its features list.

This drive is THICK. The width of the drive is 82.50mm, that’s about 3.24”.

The plastic casing is not glossy, but it does have a tendency to be a fingerprint magnet when you have sweaty palms


This drive uses 2x Samsung Spinpoint M9T series 2TB 2.5” drives. Other than that, its a 5.4K RPM drive.

It gives me great pleasure to say that I get hardware support from the manufacturers to review not only their own products, but others on behalf of the readers. It’s some companies such as Asus, Gigabyte, Kingston, WD and Coolermaster who give me hardware support by updating my test rig no strings attached and that helps me to help you! Thumbs up to these guys!

I would like to thank:

  • Gigabyte India for providing Gigabyte 890GPA UD3H Rev 1.0 motherboard.
  • Asus India for providing Asus 990FX Sabertooth motherboard.
  • Kingston Taiwan for providing hardware support with memory kits and SSD drive.
  • WD India for providing WD 300GB HLFS Velociraptor Hard Drive and four units of WD 3TB Red drives
  • Coolermaster India for providing Coolermaster GX450 RS-450-ACAA-D3 Power Supply.
Test Setup for: Seagate Backup Plus Fast 4TB USB 3.0
Motherboard+ Processor Gigabyte 890GPAUD3H Rev 1.0+ AMD 965BE
Memory Kingston KHX1600C9D3P1K28G HyperX Genesis 8GB 1600MHz DDRIII
Primary OS drive WD 3000HLFS Velociraptor 300GB/WD 320GB BLUE 320AAJS
Power Supply Corsair TX750
Chassis N.A.

The Benchmarks that I am using are as follows:

AS SSD (Pass 3): Read and Write (Pass 3)

ATTO (Pass 3): Test File Size= 0.5 to 8MB- Read and Write Pass 3

CrystalDisk Mark Benchmark: with Pass 3, each with 5 re-runs 1000MB File Size

HD Tune Pro: Sequential Write and Read Pass 3

Transfer Tests: 1.27GB zip file transfer test; 11.34GB ISO Transfer; 98.39GB Assorted Movie Folder Transfer; 1.34GB Assorted Photo folder Transfer


The sequential write matches the performance of that with WD My Passport Ultra 1TB, which is pretty good considering its a 4TB unit.

AS SSD Write

The sequential read speed is quick. Very quick.

atto write

atto read

CDM Write

CDM Read

HD Tune Write

HDTune Read

movie trns

photo trns

comp trns

iso trns

For a 4TB portable drive, it is pretty quick. Mind you, this is the first 4TB portable drive that’s tested here so far. The reads are very impressive, and the writes are pretty good, with the performance standing around single-platter 1TB drives. The built quality of the drive is decent, however I would have prefer a more solid build quality considering the amount of data it can store, and that it would be more concerning for a consumer.

But if you need a lot of space and portability, this is pretty much what’s there. The issue is Seagate’s decision to choose RAID 0.  For those who don’t know, the main disadvantage of RAID 0 if one of the two drives fails, there will be a total data loss in exchange for performance. The user is allowed to change RAID (or JBOD) configuration either, which even puts a user in a very risky situation.

Which is the main reason why I am not giving any ratings. Don’t get me wrong, it is a good performer. Its just that RAID 0 on a portable drive which is usually used as a backup doesn’t really give me the confidence to recommend this to everyone. Weigh the pros against the cons for your use, and then decide whether or not its worth the effort. Note the name of the product- “Backup”. I am really confused with Seagate’ decision to use pre-configured RAID 0 setup for a portable solution. Restricting the drive to RAID 0 with no option to change it is not something that customers will be comfortable with. At least, give the choice to the user what kind of RAID setup he wants! Seagate could have provided that options via Seagate Dashboard, provided its possible to do with the existing units via the software. If you need speed more than capacity, portable SSD drives as a solution is something you can look at!

The drive carries three-year warranty irrespective of which country you’re from.

The another issue is more ‘local’. In India, it costs Rs. 20,750/-. This is about US $341 at the time of writing. That’s insane. You’re getting this in the U.S. for $150 at the time of writing, which translates to Rs. 9,124. Ouch!!!!

India U.S. U.K.
Rs. 20,750/- $249.99 £196.76
  • Good speeds, especially for reads
  • 4TB
  • No adapter required for powering up the drive
  • RAID 0 carries risks that would discourage many users to purchase
  • Seagate Dashboard doesn’t have the option to change the RAID configuration
  • Local price (India) is insanely priced
  • Casing should be lot stronger considering it houses 2x mechanical HDDs

The performance is good. 4TB on a single portable drive with no additional power brick is also something to look at. But you have to ask if RAID 0 solution for a portable drive is a safe solution, considering portables are to carry data around. The inability to choose from other RAID/JBOD option by the user is also concerning.



United States

United Kingdom



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