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Seagate Expansion 2TB portable HDD, STNN2000400, with USB 3.0 Micro-B connection, included 0.5m USB-C cable and exFAT support for compatible Windows and Mac computers.
R2,829.00
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Official manufacturer overview
Seagate Technology · Expansion portable family overview. This listing is STNN2000400 2TB with the specified USB-C cable; capacities, enclosure thickness, connections and regional services vary across the range.
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Seagate Expansion portable • STNN2000400
Make space for documents, photos and media without adding a desktop drive to your bag. The Seagate Expansion STNN2000400 combines 2TB of portable hard-drive storage with a slim 13mm enclosure and a supplied USB Micro-B to USB-C cable for compatible computers.
Room for your own library
2TB of decimal storage gives files a dedicated home outside the computer. Use it for media, documents and an additional copy of work you want to keep. Available space is lower after formatting and system functions, and the capacity reported by an operating system may use a different measurement.
The connection, explained
The included 0.5m cable connects the drive’s USB 3.0 Micro-B socket to a compatible USB-C computer port. A computer with USB-A can use a suitable USB 3.0 Micro-B-to-USB-A cable, sold separately. USB 3.0 has a 5Gbps interface signalling rate; file-copy results depend on the hard drive, host, file sizes and operating conditions.
Windows and Mac
The drive comes formatted as exFAT for file access on supported Windows and macOS systems. Keep exFAT when sharing ordinary files between both platforms. Time Machine and Windows File History have different format requirements: choose the appropriate native file system for that backup workflow. Reformatting erases existing files, so copy anything you need elsewhere first.
Choose your backup routine
Drag and drop files for straightforward storage, or use compatible Seagate Toolkit software to set up a backup plan on Windows. Toolkit also offers mirror folders on Windows and Mac. Mirroring follows edits and deletions between folders; it is different from keeping independent historical copies. Software functions depend on the supported operating system.
A considered portable form
This 2TB model measures 117.3 × 82 × 13mm and weighs 150g. The official ordering specification lists the finish as black. Its white status light indicates readiness and activity; use the operating system’s safe-removal procedure before unplugging the cable.
Package and support
The box contains the Expansion portable hard drive, its 0.5m Micro-B-to-USB-C cable and a quick-start guide. Seagate lists a two-year limited warranty for these EMEA models, subject to regional terms and serial-number validation. Rescue Data Recovery Services are listed for the range, with availability and entitlement varying by country and supplied unit; confirm eligibility through Seagate rather than assuming a recovery outcome.
| Manufacturer | Seagate |
|---|---|
| Product family | Expansion portable external hard drive |
| Model number | STNN2000400 |
| Capacity | 2TB decimal; 1TB = 1 trillion bytes |
| Available storage | Less than nominal capacity after formatting and drive functions; OS reporting method can differ |
| Drive type | Portable external hard disk drive |
| Internal drive class | 2.5-inch HDD |
| Colour | Black, per exact manufacturer ordering table |
| EAN | 8719706046527 |
| Interface | USB 3.0 |
|---|---|
| Device connector | USB 3.0 Micro-B |
| Included computer connection | USB-C via the supplied cable |
| USB interface rate | 5Gbps theoretical signalling; actual storage throughput varies |
| USB-A computers | Supported with a compatible USB 3.0-or-higher host and Micro-B-to-USB-A cable; cable not included |
| Cable length | 0.5m |
| Power connection | Via computer USB connection; no separate power adapter listed in package |
| Operating systems | Most Windows and macOS systems; consult current Seagate OS requirements |
|---|---|
| Factory file system | exFAT |
| Cross-platform file access | Windows and Mac with compatible exFAT support |
| Time Machine / File History | Use the native file-system format required by the selected backup utility; reformatting erases data |
| Toolkit backup plans | Windows only, on supported systems |
| Toolkit mirror folders | Windows and Mac; synchronises file changes and deletions |
| Setup | Device registration and optional Toolkit installation; internet needed to obtain software |
| Minimum free system space | 600MB recommended by manufacturer user guide |
| Removal | Safely eject/unmount through the OS before disconnecting |
| Drive dimensions (depth × width × thickness) | 117.3 × 82 × 13mm |
|---|---|
| Drive weight | 150g |
| Retail box dimensions (height × width × thickness) | 150 × 106.5 × 32.5mm |
| Retail packaged gross weight | 212g |
| Retail quantity | One drive per box |
| Master carton quantity | Four retail boxes |
| Master carton gross weight | 0.946kg |
| Status indicator | White LED; steady for ready, slow blinking for access or power-saving state |
| In the box | Expansion portable HDD; 0.5m USB Micro-B-to-Type-C cable; quick-start guide |
|---|---|
| Limited warranty | Two years for EMEA SKU, subject to regional terms and serial validation |
| Warranty validation | Serial number; confirm supplied-unit entitlement with Seagate |
| Rescue Data Recovery Services | Listed by manufacturer; availability and entitlement vary by region and supplied unit |
| USB-A cable | Not included |
USB interface speed is not a sustained transfer-speed claim. Reformatting erases data. Warranty and Rescue services are subject to country, supplied-unit eligibility and service terms. Photographs illustrate the model family; the dimensions and weight identify this capacity.
Use official support resources for this product. Each link opens in a new tab.
Exact STNN2000400 and STNN4000400 model support. Access the user guide, compatible Toolkit/SeaTools information and serial-number firmware lookup; select software for your operating system. Regional warranty terms apply.
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