Seagate ST4000DM004 3.5-Inch Internal Hard Drive

The Seagate BarraCuda ST4000DM004 is a 4TB, 3.5-inch internal hard drive designed for desktop storage, delivering SATA 6Gb/s (SATA III) connectivity and a 256MB cache to boost sequential reads and bursts. It uses 512e-sector formatting and SMR (Shingled Magnetic Recording) to pack data efficiently at a lower cost per gigabyte, while spinning at 5400 RPM for lower power and quieter operation. With a maximum sustained OD read of up to 190 MB/s and a 4TB capacity, this BarraCuda drive provides ample space for a multimedia library, game collection, or backups in a single-drive solution. It supports up to 600,000 load/unload cycles, a 55 TB/year workload rating, and a 2-year limited warranty. Power is rated around 3.7 W during active use and 2.5 W when idle, with startup current near 2.0 A; Power-On Hours per year are rated at 2400. This drive fits standard 3.5-inch bays in desktop PCs and is suitable for upgrading existing systems that require large-capacity, affordable storage.