Product Comparison: Seagate Maxtor vs Seagate Expansion

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General Specifications
About the Product
The Maxtor M3 Portable External Hard Drive delivers handy portable storage. It is easy to take wherever you go, and has ample capacity of 1TB. The durable black design stands up to the rigors of daily use.
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.
Key Specs
Storage Drive Type
1000 GB
1000 GB
What customers say about "Key Specs"
Seagate Maxtor 1TB USB 3.0 Portable Hard Drive
  • Super faster and does not need an external power source. Maxtor, there is no compentition!
  • I replaced an older one, this work quicker & better, and smaller, Love it.
  • Very good and easy to use.
  • Great item does exactly as it says. Easy to use and set up.
  • Quiet in operation and compact size for easy carrying around.
Seagate Expansion Portable 1TB External Hard Drive HDD
  • 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.
Size & Weight
0.69 in.
0.58 in.
4.41 in.
4.61 in.
3.23 in.
3.15 in.
5.33 oz.
5.92 oz.
What customers say about "Size & Weight"
Seagate Maxtor 1TB USB 3.0 Portable Hard Drive
  • Nice drive for back-up. It's really neat between the small size, the large memory, and you don't have to plug it in either.
  • It looks good and it's the small size you'd expect of a portable drive. All good and no complaints!
  • The design of the product is also very nice and simple. Great size and weight.
  • The hardisk worked as expected and durable (used it for almost a year now) and compact!
  • This Maxtor M3 is a really handy, portable size that enables me to take my data with me on the go without the need for an extra plug socket.
Seagate Expansion Portable 1TB External Hard Drive HDD
  • 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.
OS Compatibility
Mac OS, Mac OS X 10.4.8 or later
Windows 10/8/7/Vista
USB 3.0
USB 3.0
Backup Function
Data Protection
SafetyKey, SecretZone
SuperSpeed USB 3.0 (Max): 5.0Gb/s, Durable black design, plug-and-play PC, Handy portable storage
Drag and drop file saving, right out of the box, Fast data transfer with USB 3.0 connectivity
What customers say about "Features"
Seagate Maxtor 1TB USB 3.0 Portable Hard Drive
  • This is a great item for my regular PC and laptop backups. Just plug it in and away it goes.
  • Its a very good built hard disk. I definitely would recommend this hard disk especially with such a good price.
  • I gave this as a present to my best frient and he loves it! He told me that it's really portable, fast and easy to use.
  • I like the USB 3.0 capability enables noticeably faster transfer speeds.
  • Simple to connect and use, transfer rates good for most types of file including Raw images.
Seagate Expansion Portable 1TB External Hard Drive HDD
  • 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.
Additional Accessories
USB cable
USB 3.0 cable
Number Of Drives
AutoBackup personal backup solution, Secure Drive for worry-free data security, SecretZone
Power Supply
Warranty / Certifications
Manufacturer Warranty
3 year(s)
1 year(s)
Other Information

Other reviews