Seagate BlackArmor PS 110 USB 3.0 review: Seagate BlackArmor PS 110 USB 3.0

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CNET Editors' Rating

4 stars Excellent
  • Overall: 8.1
  • Design: 8.0
  • Features: 8.0
  • Performance: 8.0
  • Service and support: 9.0
Review Date:
Updated on:

The Good The Seagate BlackArmor PS 110 USB 3.0 has fast throughput speeds, a large capacity, and a portable and sleek design at an affordable price. The bus-powered device is backward compatible with USB 2.0 and comes bundled with backup software and a generous five-year warranty.

The Bad Seagate BlackArmor PS 110 USB 3.0 doesn't have FireWire or eSATA connections, and the included backup software only works with PCs.

The Bottom Line The Seagate BlackArmor PS 110 USB 3.0 is a well-designed external hard drive that is fast, portable, and future-proof.

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The Seagate BlackArmor PS 110 is the first USB 3.0 external hard drive we've reviewed and it proved itself to be an excellent storage device. The drive is bus-powered and works with USB 3.0 and USB 2.0 connections. Externally, the Black Armor PS110 USB 3.0 looks the same as the USB 2.0-based BlackArmor PS110--that is to say it's very sleek and portable. The only difference is its USB 3.0 Mini-USB port on its back. On the inside, the new BlackArmor PS110 USB 3.0 has a 7,200rpm hard drive (as opposed to a 5,400rpm drive in the USB 2.0 version).

Regardless of whether your computer has USB 3.0 built-in, the Seagate BlackArmor PS 110 USB 3.0 is worth its $180 price tag, which is just slightly more expensive than the USB 2.0 version. As a bonus, it comes with an add-in USB 3.0 PC card for laptop users.

Drive type External hard drive
Connector options USB 3.0, USB 2.0
Available capacities 500GB
Capacity of test unit (if applicable) 500GB
Drive speed 7,200rpm
Dimensions (LWH) 5.12x3.15x0.49 inches
Supported operating systems Windows XP; Windows Vista; Windows 7; Mac OS X
Software included BlackArmor Backup by Acronis (Windows only)
Service and support Five-year warranty

Design and features
The Seagate BlackArmor PS 110 USB 3.0 looks great and feels sturdy. The drive is thin and compact enough to be easily tucked in your pocket to carry on the go. Unlike many other sleek-looking devices we've seen, the BlackArmor's cover doesn't attract fingerprints, which while not really important, affords the drive a clean look all the time.

As USB 3.0 is new technology that officially debuted during CES 2010, most existing computers don't have the technology built-in. However, the Seagate BlackArmor PS 110 USB 3.0 comes in a kit that includes a USB 3.0 add-in card for laptop users. This card uses the laptop's PC Express slot to add a USB 3.0 port to the computer. However, the BlackArmor PS 110 USB 3.0 is fully compatible with USB 2.0 and you can use it like any other external hard drive. Since the drive is bus-powered, you need only to plug it into the computer via a USB port to start using it.

The Seagate BlackArmor PS 110 USB 3.0 comes with one Mini-USB 3.0 port on the back. This port isn't compatible with USB 2.0 and you will need to use the included Mini-USB 3.0 cable that comes with the drive. The drive doesn't offer any other connection options such as FireWire or eSATA; however, since USB 3.0 is faster than any other connection on the market--up to 5Gbps--this lack of connection options makes sense.

Out of the box, the drive is formatted using the NTFS file system and is intended to be used with Windows computers; however, it can be easily reformatted for Macs. Unfortunately, the included PC Express card only has drivers for Windows.

Like the USB 2.0 version, the Seagate BlackArmor PS 110 USB 3.0 comes with Acronis-based backup software that allows for easy backing up and restoring of data. You can choose to back up the computer's main hard drive and restore the whole system to the point when the backup was created, or you can restore a few single files by mounting a backup as a virtual drive. The software also allows for encrypting the backups with AES 256-bit encryption to keep your data safe in case the drive is lost or stolen. Unfortunately, the backup software only works for Windows. If you have a Mac, you'll need to get another third-party backup software or use Time Machine, Apple's proprietary backup solution available in OS X 10.5 or later.

Cost per gigabyte
With the price tag of $180, the BlackArmor PS 110 USB 3.0 costs about 36 cents per gigabyte. This is slightly more expensive than the 32 cents per gigabyte of the original USB 2.0 BlackArmor PS 110 or the 30 cents per gigabyte of the Iomega eGo Portable. Nonetheless, this is still much lower than the 56 cents per gigabyte of the Clickfree Portable Backup Drive. Considering its speed, great design, and the added laptop PC card, we find that BlackArmor PS 110 USB 3.0 offers very good value for the money.

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Where to Buy

Seagate BlackArmor PS 110 USB 3.0

Part Number: ST905003BPA1ES-RK

MSRP: $179.99

See manufacturer website for availability.

Quick Specifications See All

  • Hard Drive Type external hard drive
  • Interface Type SuperSpeed USB 3.0
  • Capacity 500 GB
  • Spindle Speed 7200 rpm