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Silver 3.5 inch SATA hard drive with circuit board visible

HGST

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

SKU CH-1Z03-NM4JA

1 TB 3.5" SATA internal hard drive with 7200 rpm spindle speed and 32 MB buffer for desktop storage

  • 1 TB capacity for large media libraries and backups
  • 7200 rpm spindle speed for responsive file access
  • 32 MB buffer to smooth burst workloads
  • SATA/300 interface for broad desktop compatibility
  • Perpendicular magnetic recording for proven field reliability

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.

How it compares

Measured against everything we stock in 3.5-Inch Internal Desktop HDDs, at today’s prices. Recalculated every night.

Price $41.99
Cheaper than about 85% of the 4,938 comparable items (median $107.99).

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Specifications

Product
Brand nameHGST

Questions about this item

Will the 3.5" form factor and 1" height fit my standard desktop drive bay?

Yes, the drive uses the standard 3.5-inch form factor with a 1-inch height, matching typical desktop internal bays.

Does the SATA/300 interface require any special jumper settings during installation?

No jumper configuration is needed; connect the SATA data and power cables and the drive is recognised automatically.

How often should I check the drive health given the 7200 rpm spindle speed?

Monitor S.M.A.R.T. attributes periodically; the 7200 rpm mechanism has no user-serviceable parts, so plan replacement if reallocated sectors appear.

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