Description
🧰 Key Specifications
| Specification | Detail |
|---|---|
| Model | STKM4000400, Seagate Expansion Portable Drive |
| Capacity | 4 TB |
| Interface | USB 3.0 (backward compatible with USB 2.0) |
| Form Factor | 2.5-inch portable HDD, powered via USB cable (no external power adapter) |
| Rotation Speed | 5,400 RPM |
| Dimensions | 4.54″ × 3.15″ × 0.82″ (approx. 11.5 × 8 × 2.1 cm) |
| Weight | 0.56 lb (255 g) |
| Warranty | 3 -year |
⚙️ Performance & Real-World Behavior
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Speed: Average real-world transfer rates are around 100-110 MB/s read (for large continuous files) when used with a proper USB 3.0 port. With USB 2.0 or a lower-quality cable, performance drops significantly.
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Build & Design: Simple, rugged enclosure with minimalistic design. USB bridge and internal hardware are typical of budget external HDDs. No flashy features, just basic portability.
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Pre-formatting: Comes formatted (usually exFAT or NTFS depending on region) — works out of the box with Windows; macOS users may need reformatting.
👍 Pros & 👎 Cons
| Pros | Cons |
|---|---|
| Good capacity (4 TB) in a portable 2.5-inch form factor | Moderate speed — not ideal for heavy writes or when used over USB 2.0 |
| USB-powered — no extra adapter needed | 5,400 RPM slower than 7,200 RPM drives; higher latency and lower throughput in demanding uses |
| Seagate’s Rescue Recovery service adds value | Average build (not rugged or weather-sealed) |
| Reasonable price per TB for everyday storage | No hardware encryption; not ideal for extremely sensitive data unless encrypted yourself |
💡 Use Cases
This drive is good for:
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Backing up photos, videos, documents
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Extra archive storage (movies, games, large media files)
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Transporting large amounts of data between locations
It’s less optimal for:
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Constant daily use as a scratch disk (video editing, VM hosting)
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Using with devices that only have USB-2.0 interfaces
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Environments needing rugged or dust-proof storage
🛠 Tips & Things to Check
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Use a grounded USB 3.0 port; avoid long/thin USB cables which degrade signal strength. Front ports on laptops/desktops sometimes are inferior.
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Keep backup copies — even with “Rescue” services, recovery isn’t guaranteed.
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Format appropriately: if using predominantly with Mac, you might prefer APFS or HFS+; for Windows, NTFS or exFAT.
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Monitor for early signs of failure (like bad sectors) using SMART tools; brand like Seagate has mixed feedback for longevity in certain batches.
Reviews
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