Product Comparison: Seagate Expansion (STEA1000400) vs Seagate Backup Plus 4 TB

General Specifications
Expansion (STEA1000400)
Backup Plus 4 TB
About the Product
The Seagate Expansion Portable hard drive offers an easy-to-use solution when you need to instantly add storage to your computer and take files on the go.
The Seagate® Backup Plus portable drive offers the mobility of a portable with the high capacity of a desktop drive. Under a sleek metal design lies up to 5 TB of storage — twice the capacity of comparable 2.5-inch portable drives.
Key Specs
Storage Drive Type
1000 GB
4000 GB
What customers say about "Key Specs"
Seagate Expansion (STEA1000400) 1 TB Expansion
  • Great compact enclosures. I would suggest putting on some small rubber 'feet' on the base to lift it up and allow any heat to dissipate more freely.
  • I decided on this one purely because of the price point, the capacity, and the fact it was a Seagate!
  • This is my 4th Expansion 4 TB USB 3.0 Hard Drive but I have 7 more ranging between 1TB and 5TB capacity. The first I purchased in 2007 and have never looked back. All are going strong.
  • I bought the 2TB version. Usually, there's a tiny inaccuracy in the capacity. This version is actually 1.81 TB.
  • High-capacity HDDs are also a worry of course, because when they fail they take away a *lot* of data in one go, so these are only used for remote copies of data that is mirrored elsewhere on entirely different devices.
Seagate Backup Plus 4 TB Portable External Hard Drive
  • As the other reviews have described, this HDD is about capacity and not useful for a standard NAS.
  • I have a few external drives, WD 2.5" and WD 3.5" cloud drive, but I think for size and capacity so far I like this quite a lot.
  • My only concern in advance is with such a large capacity drive there is a lot to lose when this goes faulty, consider this if the device is to be primary storage, if this is level 2/3 then happy days people !
  • This drive is large in capacity, slim in size.
  • Needed a high capacity reliable drive to back up 3 computers, unfortunately, this had the capacity but not the reliability.
Size & Weight
0.58 in.
0.8 in.
4.61 in.
4.5 in.
3.15 in.
3.1 in.
5.92 oz.
8.7 oz.
What customers say about "Size & Weight"
Seagate Expansion (STEA1000400) 1 TB Expansion
  • Opening the box, the unit is very compact, but functionally has done everything we’ve asked of it.
  • This device is so compact and reliable you can take it anywhere. Excellent value for money. Highly-recommended.
  • I bought it because it was compact but wish I'd gone bigger or another one now because it does feel like the manufacturers did the minimal they could.
  • I’ve never had any data crashes or losses, and the hard drive itself it small and compact for the amount of data it stores.
  • Runs smoothly and is nice and compact.
Seagate Backup Plus 4 TB Portable External Hard Drive
  • takes a while due to the size of the disk, but has worked well so far (I've had to do this twice). Generally speaking, it's fast and reliable.
  • The drive is very small, about iPod Classic size and weight.
  • Don’t be fooled to think that this is a 7.5mm drive, its not. Size is nearer to 20mm but for an external device this simply doesn’t matter.
  • But this is true for any size, style or make of HDD, external or internal. Spend an extra £7 on a decent case would be my advice.
  • The size is great no bigger than a paperback book, two front facing USB PORTS for easy access, works quietly when engaged on backing up my RAW files
OS Compatibility
Windows 10/8/7/Vista
Windows 10/8/7/Vista, Mac OS X 10.9 or higher
USB 3.0
USB 3.0
Backup Function
Drag and drop file saving, right out of the box, Fast data transfer with USB 3.0 connectivity
Slim, metal design, 2 Months Free Adobe Creative Cloud Photography Plan
What customers say about "Features"
Seagate Expansion (STEA1000400) 1 TB Expansion
  • USB3.0 made loading the drive up for the boss a breeze. This feature is wasted on him, but will definitely benefit me down the line when adding new photos.
  • It could be quieter, but it has good power saving features such as shutting down when not plugged into a computer.
  • Works fine. Took a while to arrive. I can't give it 5 stars as durability and longevity are key features and I have just received it.
  • Note, this drive does not feature a Kensington slot.
  • Not too sure about the boasted feature that it doesn't need a power supply.
Seagate Backup Plus 4 TB Portable External Hard Drive
  • A nice feature is the front panel USB ports for quick connection of temporary items, my Ecig battery in particular.
  • Drive was detected straight away on Windows 10 and there are various software features loaded onto the drive should you wish to use them.
  • At the time of purchase it was one of the cheapest drives on the market for the storage and features.
  • Great product good backup features
  • Poor sealing(glue slightly comming of lid seal)
Additional Accessories
USB 3.0 cable, Quick start guide
USB 3.0 cable
Seagate Dashboard software, NTFS driver for Mac
Power Supply
USB 5V/0.5A
Warranty / Certifications
Manufacturer Warranty
1 year(s)
3 year(s)
Other Information

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