HGST 0A35155 Deskstar 7K1000 1 TB 3.5" SATA internal hard drive

Capacity and interface

The HGST Deskstar 7K1000 is a 1 TB internal hard drive built for 3.5-inch desktop bays. It connects through a SATA interface running at the SATA/300 standard and spins at 7200 rpm with a 32 MB buffer. The drive uses perpendicular magnetic recording to deliver that capacity in a standard height form factor.

Upgrade path

This drive replaces smaller-capacity 3.5-inch SATA drives or older lower-speed models when more storage is needed for desktop workloads. The jump is worth it when a system requires a full terabyte of space and can accept a SATA/300 connection without needing a faster interface. Hot-swap capability also makes it a direct swap in compatible enclosures or servers.

Suitability

The drive suits desktop builders, home-server owners and small-business workstations that need 1 TB of reliable bulk storage on a SATA bus. Buyers who need higher throughput, lower latency or a smaller 2.5-inch form factor should look at something else. Systems limited to older SATA revisions will still work but will not reach the drive’s full transfer potential.