Seagate Desktop HDD 3TB 3.5" 7200RPM SATA 6.0Gb/s Internal HDD

The Seagate ST3000DM001 is a 3.5-inch internal hard drive that gives a desktop or direct-attached storage enclosure a full 3 TB of mechanical capacity. It connects through a SATA 6 Gb/s interface, so it drops into any modern motherboard or external dock that accepts standard SATA cabling.

Inside the drive, a 7200 RPM spindle and 64 MB of onboard cache work together to move large files smoothly. Seagate’s AcuTrac technology keeps the read and write heads precisely on track, even when the drive vibrates inside a busy tower case, while OptiCache uses the cache memory more efficiently to shorten access times. SmartAlign handles 4 K sector formatting in the background, letting you use advanced format storage benefits without extra setup.

That blend of speed and capacity makes the ST3000DM001 a practical choice for broad jobs: expanding a workstation’s local project space, housing a growing collection of games, or serving as the primary drive in a home server that handles scheduled backups. If you are upgrading an older PC that cannot address drives larger than 2 TB, Seagate’s free DiscWizard software guides you through partitioning and installation so the full capacity is available.

Whether you are building a fresh desktop, refreshing a media server, or adding reliable room for archived data, this drive offers a straightforward way to step up storage without changing your entire system.

• 3 TB of mechanical storage for desktops or direct-attached enclosures
• 7200 RPM spindle speed supports responsive file transfers
• SATA 6 Gb/s interface works with current consumer motherboards
• 64 MB cache improves burst performance on large or fragmented files
• AcuTrac technology maintains head accuracy during operation
• OptiCache leverages cache memory for faster data access
• SmartAlign manages 4 K sector formatting without manual intervention
• DiscWizard software assists with installations on legacy operating systems