Slim outside. Brilliant inside.

The Seagate® Slim Portable Drive USM is our thinnest, sleekest way yet to back up the things that are important to you.

  • World’s slimmest portable external hard drive
  • Protect your stuff with easy, flexible backups
  • Automatically save photos from your social networks
  • Share photos and videos to social networks with a click
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  • Windows 8 Compatible

    Windows 8 32 and 64-Bit

  • Windows 7 Compatible

    Windows 7 32 and 64-Bit

  • Windows Vista Icon

    Windows Vista 32 and 64-Bit

  • Mac Icon

    Mac OS

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Wallets are bigger than this.

The Seagate Slim Portable Drive USM is more than just the slimmest portable external hard drive available, it also contains simple, intuitive software to make backing up what’s important to you a snap.

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How slim is slim?

This amazing drive is about as thin as a pencil. So it fits—and goes—anywhere.

Easy backup.

Choose from two easy backup options in the Seagate Dashboard—scheduled or continuous backups—and then forget it.

Save and share social media.

Save and share social media.

Don’t risk losing those great pics you post online. Seagate Slim Portable Drive USM lets you download them automatically with a click.

USM Compatibility

USM Compatibility

Even with a different form factor, the sleek, stylish Seagate Slim USM portable drive is USM-compatible. Perfect for the traveler, this drive can pack it all in and you can share your content with others wherever you go. Use it with the included USB 3.0 interface adapter or with any USM-compatible device.

PC and Mac compatible.

Works with PC or Mac.

Use it interchangeably on your PC or your Mac computer without reformatting.

More Seagate Slim Portable Drive USM features
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Photos, videos, and more—on the go.

Life is full of amazing moments you want to remember forever. The Seagate Slim Portable Drive USM goes where you go, providing easy, plug-and-play backups. So no matter where “life happens,” your memories are always protected.

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Your social life with a click.

Think of how many photos you’ve shared on Facebook or Flickr. With our built-in backup software and dashboard control, you can easily download them right to your drive, so even more of your life is safe and sound.

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Your favorite moments instantly.

You can also easily share photos and videos to Facebook, Flickr, or YouTube—simultaneously—right from your Seagate Slim Portable Drive USM. Smart integration with popular social media means your memories aren’t “trapped” in your drive, letting you publish them to the social network of your choice.


Capacity 500GB
Interface Options USB 3.0
Height (in/mm) 0.35/9.0
Width (in/mm) 3.07/78.0
Length (in/mm) 4.91/124.8
Weight (lb/g) 0.35/160
Model Number Interface Package Capacity Automatic Backup Software Warranty
STCD500100 USB 3.0 Kit 500GB PC & Mac 3 years