Seagate Expansion Portable 2.5" 4TB HDD - USB 3.2 Gen1 5400RPM - STKM4000400
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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.
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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 |
