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2.0TB Expansion

Mac / PC / Linux / USB 3.0
Portable hard drive
Simple and Instant Storage
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 sleek case design allows for a thin portable hard drive with 2TB of capacity.
The easy-to-use storage solution
The Expansion portable hard drive installs easily by plugging in a single USB cord. The drive is powered from the USB cable, so there is no need for an external power supply. Saving files is easy—simply drag-and-drop.You can start saving your digital files to this external hard drive within seconds of removing it from the box. With drag and drop file saving and fast data transfer with USB 3.0 connectivity, this USB powered external drive is incredibly simple to use.
Instantly adds storage capacity
Digital photos, video and music files can tax your computer's storage, causing performance to decline as its internal hard drive fills to capacity. Take advantage of the fast data transfer speeds with the USB 3.0 interface by connecting to a SuperSpeed USB 3.0 port. USB 3.0 is backwards compatible with USB 2.0 for additional system compatibility. The Expansion portable hard drive instantly gives you additional storage for all your digital media needs.

Product Specifications:

Seagate Part Number

  • STBX2000401

Bus Interface

  • USB 3.0 & 2.0 Backwards compatible port

Standard Mechanism

  • 2.0TB Seagate Momentus / Samsung Spinpoint M9T Specifications:


    Form Factor
    2.5″ HDD
    SATA 6Gb/s
    Formatted Capacity2
    Rotational Speed
    5,400 RPM
    Cache / Data Buffer
    Manufacturer Model Number


    Height (max)
    9.5mm (0.374″)
    Width (max)
    69.85mm (2.75″)
    Length (max)
    100.35mm (3.951″)
    Weight (typical)
    130g (0.29 lbs.)


    Contact Start-Stops
    Nonrecoverable Read Errors
    1 per 1014 bits read


    Transfer Rate (Max)
    6.0 Gb/s
    Average Seek Time
    Average Latency


    Maximum Start Current, DC
    1.0 Amp
    Seek Power
    2.3 Watts
    Read Power
    2.3 Watts
    Write Power
    2.3 Watts
    Idle Mode
    0.7 Watts
    Standby Mode
    0.18 Watts
    Sleep Mode
    0.18 Watts

    Environmental (Operating)

    300 G max at 2ms
    Ambient Temperature (°F)
    32°F to 140°F
    Ambient Temperature (°C)
    0°C to 60°C
    1 .5 Grms
    Relative Humidity (non-condensing)
    5 ∼ 90%
    -304.8 m to 3,048 m (-1,000 ft to 10,000+ ft)

    Environmental (Non-Operating)

    900 G max at 1ms
    Ambient Temperature (°F)
    -40°F to 158°F
    Ambient Temperature (°C)
    -40°C to 70°C
    Relative Humidity (non-condensing)
    5 ∼ 95%
    -304.8 m to 12,192 m (-1000 ft to 40,000+ ft)


    Idle (Typical)
    2.5 bels
    Seek (Typical)
    2.7 bels
    1. 1GB = 1,000,000,000 bytes. Total accessible capacity varies depending upon operating environment (typically 5-10% less). The actual total capacity will depend on your own defined file settings/preferences.
    2. In terms of standard gigabytes, 1GiB ≈ 1.074GB and refers to the actual formatted capacity of shown under Mac OS 10.5 or earlier and Microsoft Windows OS.
    3. Specific application environments such as temperature and duty cycle will affect the overall reliability rates.
    2.0TB* Seagate/Samsung Hard Disk Drive**

    *1GB = 1,000,000,000 bytes. Total accessible capacity varies depending upon operating environment (typically 5-10% less). The actual total capacity will depend on your own defined file settings/preferences.

Drive Cache Size

  • 32 Megabytes

Drive Rotation Speed

  • 5400RPM

System Requirements

  • Mac OS X 10.6.8 or higher, or Windows 8, Windows 7, Windows Vista, Windows XP SP3 (32-bit and 64-bit) operating system
  • SuperSpeed USB 3.0 port (required for USB 3.0 transfer speeds or backwards compatible with USB 2.0 ports at USB 2.0 transfer speeds)

Drive Interface

  • SATA Revision 3.0 (6Gb/s)

Max Data Transfer Rate

  • USB 3.0 — 500MB/s
  • USB 2.0 — 50MB/s


  • 4.81" x 3.19" x 0.61" (12.2 x 8.1 x 1.5 cm)


  • 0.37lbs. (0.17kg)


Manufacturer provided specifications for Seagate p/n STBX2000401 UPC#: 763649050286



Included Items
  • Seagate Expansion portable hard drive
  • 18" (45.7cm) USB 3.0 cable
  • Quick start guide
Seagate 2.0TB Expansion Mfr P/N: STBX2000401 OWC SKU: SEASTBX2000401 Easy-to-use porable external USB 3.0 bus powered storage solution Seagate 1 Year Limited Warranty
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