Seagate Expansion Portable 2.5" 4TB HDD - USB 3.2 Gen1 5400RPM - STKM4000400 (Boxed)
Seagate Expansion STKM4000400: 4TB portable 2.5" HDD, USB 3.2 Gen1 (5Gbps), bus-powered, black. 5400RPM, 256MB cache, ~130MB/s transfers. Windows/macOS compatible (reformat for Mac). Includes Rescue Data Recovery Services.
Please Note
The website is currently being actively developed, you are welcome to place the order and in 99% of the cases your order will be processed as usual, but in some cases there may be a delay or the price may change. We will notify you if there are any issues.
Discontinued
This item was discontinued and currently is not available for order on our website. The item may become available soon. Please contact us if you need more information regarding the upcoming arrivals.
| External Storage - Type | Portable HDD |
|---|---|
| External Storage - Capacity | 4TB |
| External Storage - Max Read Speed | Under 200 MB/s |
| External Storage - Special Features | Hardware Encryption |
| External Storage - Interface | USB 3.2 Gen 1 (5 Gbps) |
| External Storage - Connector | USB-A |
The Seagate Expansion Portable STKM4000400 is a high-capacity 4TB external 2.5-inch HDD designed for effortless portable storage. With USB 3.2 Gen 1 (5Gbps) interface, it delivers fast data transfers up to 130MB/s read/write speeds, powered directly via USB—no external adapter needed. Its compact black design (115.3 x 80 x 20.9mm, 257g) slips easily into bags for on-the-go use.
Compatible with Windows and macOS (reformatting required for Time Machine), setup is plug-and-play with drag-and-drop file saving. Ideal for backing up photos, videos, documents, or expanding PC/Mac storage. Includes 18-inch USB 3.0 cable, quick start guide, and Seagate's Rescue Data Recovery Services for peace of mind (availability varies by region). 1-year limited warranty.
- 4TB capacity, 5400 RPM, 256MB cache for reliable performance
- Bus-powered via USB 3.2 Gen 1 (backward compatible with USB 2.0)
- Automatic OS recognition—no software installation
- Rescue Data Recovery Services included
- Boxed dimensions: 14.6 x 10.5 x 4.0 cm, 340g
| HDD capacity | 4 TB |
| HDD size | 2.5 |
| USB version | 3.2 Gen 1 (3.1 Gen 1) |
| Product colour | Black |
| Width | 80 mm |
| Depth | 20.9 mm |
| Height | 115.3 mm |
| Weight | 257 g |
| Package width | 105 mm |
| Package depth | 40 mm |
| Package height | 146 mm |
| Package weight | 340 g |
| Spindle Speed (RPM) | 5400 RPM |
| Cache Buffer | 256 MB |
| Max Read Speed | ~130 MB/s |
| Max Write Speed | ~120 MB/s |
| Power Source | Bus-powered (USB) |
| Compatibility | Windows/macOS (reformat for Mac) |
| What's Included | HDD, 18-inch USB 3.0 cable, Quick start guide, Rescue Data Recovery Services |
| Warranty | 1-year limited |
| Harmonized System (HS) code | 84717050 |