Seagate
Seagate STKM1000400 1TB portable hard drive
A compact 1TB portable drive with USB 3.0 interface for adding storage to Windows or Mac computers on the go
- ColorBlack
- InterfaceUSB 3.0
- Capacity1TB
- FeaturesThe Seagate Expansion portable drive is compact and perfect
- System RequirementsCompatible with most Windows and macOS systems. Visit seagat
- Form Factor2.5"
- Compact 2.5" design fits in a bag for travel
- USB 3.0 interface enables fast data transfers
- Bus-powered operation removes the need for an external adapter
- Works with Windows and macOS after a simple plug-in
- Includes Rescue Data Recovery Services for added protection
Compact portable storage
The Seagate Expansion STKM1000400 is a 1TB portable hard drive in a 2.5-inch form factor. It connects via USB 3.0 and draws power from the same cable, so no external supply is needed. The drive works with Windows and macOS out of the box, making it suited for users who want simple extra capacity for photos, videos or documents while travelling.
USB 3.0 speed ceiling
The USB 3.0 interface sets the maximum transfer rate, so performance will not exceed what that standard allows. You must plug the drive into a USB 3.0 port to reach those speeds; a USB 2.0 port will still work but at lower throughput. The included cable is 18 inches long, which limits how far the drive can sit from the host port.
Pre-purchase checks
Verify that your computer has an available USB 3.0 port and runs a supported Windows or macOS version; check seagate.com/os for the current list. If you plan to use Time Machine on a Mac, the drive will need reformatting first. Rescue Data Recovery Services are not offered in every country, so confirm eligibility if that coverage matters to you.
Highlights
- Compact 2.5" design fits in a bag for travel
- USB 3.0 interface enables fast data transfers
- Bus-powered operation removes the need for an external adapter
- Works with Windows and macOS after a simple plug-in
- Includes Rescue Data Recovery Services for added protection
Specifications
| Brand | Seagate |
|---|---|
| Series | Expansion |
| Model | STKM1000400 |
| Color | Black |
| Interface | USB 3.0 |
| Capacity | 1TB |
| Features | The Seagate Expansion portable drive is compact and perfect for on-the-go. Instantly add more storage space to your PC or Mac and take large files with you when you travel. Setup is simple and straightforward; simply connect a single USB cable and you are ready to go. The drive is powered from the USB cable, so there is no need for an external power supply. Plus, it is automatically recognized by the Windows or Mac operating system, so there is no software to install and nothing to configure. Saving files is easy - simply drag-and-drop. Take advantage of the fast data transfer speeds |
| System Requirements | Compatible with most Windows and macOS systems. Visit seagate.com/os for details1,2 USB 3.0 port (required for USB 3.0 transfer speeds)2 1 Reformatting required for use with Time Machine. 2 Compatibility may vary depending on user's hardware configuration and operating system. |
| Form Factor | 2.5" |
| Dimensions | 0.50" x 3.15" x 4.54" |
| Weight | 0.35 lb. |
| Package Contents | Seagate Expansion portable hard drive 18-inch (45.72cm) USB 3.0 cable Quick start guide Rescue Data Recovery Services3 3 Rescue Data Recovery Services not available in all countries. |
| Shipping weight | 0.24 kg |
| Package size | 197 × 130 × 32 mm |
Other versions of this model
2 more in the same range
Same family, different memory, cooler or clock — compare before you commit.
Questions about this item
Is the 1TB Expansion model the only capacity available in this series?
The product listed here is the 1TB version of the Seagate Expansion portable drive. Other capacities exist in the range but are separate items.
What real-world transfer speed can I expect from the USB 3.0 interface on this drive?
The USB 3.0 interface supports up to 5 Gbps, but actual throughput is limited by the internal mechanical drive and the host system's USB controller.
Does the USB 3.0 connection require a separate power adapter for this 2.5-inch drive?
No, the drive draws power directly from the USB 3.0 port via the included 18-inch cable, so no external power supply is needed.
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