Seagate Expansion 1TB Portable HDD – USB 3.0 Storage with Rescue Data Recovery

The Seagate Expansion 1TB Portable USB 3.0 drive (STKM1000400) delivers reliable and affordable storage in a sleek 2.5″ form factor. Plug-and-play ready with exFAT formatting, it's compatible with both Windows and macOS (reformatting required for Time Machine). USB-powered and cable-inclusive, it's ideal for backing up photos, videos, documents, and game libraries—whether at home, school, or on the go.

Boasting USB 3.0 performance, the drive maintains consistent transfer speeds around 115 MB/s—enough to back up a 4 GB file in roughly 35 seconds 

The enclosure stays cool even during extended use 

While it doesn't include backup or encryption software out-of-box, users can download Seagate Toolkit and benefit from 3-year Rescue Data Recovery Services, ensuring your files are protected in case of failure.

 Specification 

Feature	Details
Capacity	1 TB (approximately 931 GB usable)
Interface	USB 3.0 (Micro‑B) – USB 2.0 compatible
Form Factor	2.5″ Portable HDD
Pre‑formatted File System	exFAT – works with Windows/macOS out-of-box; reformat for Time Machine
Power	Bus-powered via USB (no extra adapter)
Data Recovery Services	3-year Seagate Rescue included
Transfer Speeds	Read ~117 MB/s, write ~115 MB/s; slight dips with large files; write ~25–100 MB/s in real-world tests
Dimensions	~122 × 81 × 15 mm (~4.8 × 3.2 × 0.6 in)
Weight	~170 g (0.37 lb)
OS Compatibility	Windows 7+, macOS, Linux (reformatting may be required)
Enclosure	Thin-walled plastic; compact but handle gently