Here is the Seagate Expansion Portable 4TB external hard drive, a simple, budget-friendly 2.5-inch USB drive built for anyone who just needs extra storage space fast, whether that's for backing up a laptop, expanding a games console's library, or moving large files between machines. The 4TB 5400rpm mechanism is housed in a compact black enclosure measuring 122x81x21mm, small enough to slip into a laptop bag or a desk drawer, and it's bus-powered over its USB 3.0 connection so no separate power brick is needed. USB 3.0 delivers quick transfer speeds on a modern PC or Mac while remaining USB 2.0 backward compatible for older machines. It's a no-frills drive — there's no bundled backup software or encryption layer — aimed squarely at customers who want reliable, affordable bulk storage with minimum fuss. Seagate backs the Expansion Portable range with a 2-year limited warranty.