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Silver 3.5 inch internal hard drive with SATA connector and circuit board visible

Hitachi, Ltd.

Hitachi, Ltd. HUA721010KLA330Product 1 TB 3.5" SATA server power supply

SKU CH-77PM-602H0 MPN HUA721010KLA330Product

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

  • Product typeHard Drive
  • 1 TB capacity stores large datasets
  • 7200 rpm spindle delivers fast data access
  • 32 MB buffer improves transfer performance
  • SATA/300 interface connects to standard controllers
  • Hot-swappable 3.5" design enables drive replacement without downtime

HGST Ultrastar 1 TB 3.5" SATA Hard Drive

The HGST Ultrastar A7K1000 is a 1 TB internal hard drive built for 3.5-inch server bays. It connects through a SATA interface rated at 300 MB/s and spins at 7200 rpm with a 32 MB buffer. Hot-swap support allows replacement without powering down the chassis.

Suited for capacity-focused arrays.

This drive suits administrators who need affordable bulk storage in hot-swap servers or RAID enclosures. It is not intended for workloads that demand the low latency or high throughput of solid-state media. Buyers who want more storage per bay or faster random access should look at higher-capacity or flash-based alternatives.

Steady throughput under sustained write loads

The 7200 rpm spindle and 32 MB cache deliver consistent sequential performance during long backup or archival jobs. Thermal output remains within typical enterprise limits for 3.5-inch drives, so standard server airflow handles extended duty cycles without throttling.

How it compares

Measured against everything we stock in Server & Hot-Plug PSUs, at today’s prices. Recalculated every night.

Price $54.99
Cheaper than about 85% of the 3,798 comparable items (median $131.99).

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Specifications

Product
Brand nameHGST
Product typeHard Drive

Questions about this item

Does my server need a 3.5" drive bay and SATA data plus power cables to install this HGST Ultrastar A7K1000?

Yes, the drive uses a standard 3.5" form factor with a SATA interface, so you need an available 3.5" bay and both a SATA data cable and a SATA power connector from your power supply.

Will this 7200 rpm SATA/300 drive work in a system that only supports the original 1.5 Gb/s SATA standard?

The SATA/300 interface is backward compatible with SATA 1.5 Gb/s controllers, so the drive will function, though it will run at the slower 1.5 Gb/s transfer rate.

How can I confirm the drive is operating correctly after installation?

Check that the BIOS or RAID controller detects the HUA721010KLA330 model with its full 1 TB capacity, then run the manufacturer's diagnostic tool to verify SMART health and the 7200 rpm spindle speed.

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