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Pierre-Jean Alzieu Published on February 22, 2013
Translated by Catherine Barraclough
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  • Capacity
  • Format
  • Interface
  • Rotation Speed 5400 rpm
  • Cache NC
  • Write Speed NC
At just 9 mm thick, the Seagate GoFlex Slim claims to be the world's thinnest portable external hard drive. Keeping bulk to a strict minimum, Seagate has housed this HDD in a sleek brushed-metal casing with a very high-quality finish.

This GoFlex Slim hard drive should be pretty speedy thanks to its USB 3.0 interface (which also powers the drive). However, Seagate doesn't make any promises about data transfer speeds, with no figures quoted in the drive's specs. No matter—that's we're here for!

Seagate goflex slim usm

Like all HDDs in the GoFlex range, this Slim model comes with USM support. The USB 3.0 connection unit can therefore be removed and replaced with another optional interface (eSATA, Firewire 800, etc.). It's even possible to connect the HDD to the Seagate FreeAgent GoFlex Net media sharing station to turn it into a networked hard drive. This makes Seagate's HDD versatile and highly practical.


Seagate goflex slim debits

This external hard drive offers fast data transfer speeds. We measured the read speed at 106 MBps and the write speed at 104 MBps with big files. That's certainly good, but we have seen better. The LaCie Rikiki 1 TB managed speeds of 112 MBps and 116 MBps respectively in the same test conditions.


Measuring 125 x 78 x 9 mm (88 cm3) and weighing 160 grammes, the GoFlex Slim is easy to carry around in a bag or even a pocket.
Software Supplied
The GoFlex Slim comes with Memeo software for synching and backing up files from your computer to a hard drive, a networked hard drive (NAS) or an online storage service. To keep your data secure, Seagate also offers an encryption tool for files copied onto the external HDD.

It idea is right but the software's design could be more user-friendly. Beginners may find it hard to find their way around.


  • Fast data transfer: 106 MBps read speed and 104 MBps write speed
  • USB 3.0 and USM: drive interface can be switched
  • Robust and compact casing


  • Software supplied could be a bit complicated for beginners


The 500 GB Seagate GoFlex Slim is a great portable external hard drive. As well as its sleek, high-quality casing and ultra-compact design, this HDD offers fast data transfer speeds over USB 3.0, with just over 100 MBps in both read and write modes!
5 Seagate GoFlex Slim 500 GB DigitalVersus 2013-02-22 10:00:00
Compare: Seagate GoFlex Slim 500 GB to its competitors
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