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Silver 3.5 inch SATA hard drive with circuit board visible

Western Digital

Western Digital 250GB 7200RPM SATA 16MB 3.5-inch internal hard drive WD2500AAKX-321CA0

SKU CH-W7CB-XHGZC

A 250 GB 3.5-inch desktop hard drive spinning at 7200 RPM with a 16 MB cache and SATA 6 Gb/s interface

  • Fast desktop performance with 7200RPM spindle speed
  • 250GB capacity stores operating system and core apps
  • 16MB cache smooths burst read and write workloads
  • SATA 6Gb/s interface fits standard 3.5-inch drive bays

250 GB 7200 RPM SATA desktop drive

This 3.5-inch internal hard drive provides 250 GB of storage on a SATA 6 Gb/s interface. It spins at 7200 RPM with a 16 MB cache to handle everyday desktop workloads. The drive is supplied new and fits standard desktop drive bays.

Sustained throughput on mechanical media

Sequential transfers settle at the rate allowed by the 7200 RPM platters and SATA link rather than peaking at burst speed. The 16 MB buffer smooths short bursts but does not change the steady-state transfer ceiling. Random I/O latency reflects mechanical seek time under continuous load. Buyers needing higher sustained bandwidth or lower latency should consider solid-state alternatives.

How it compares

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

Price $134.99
Pricier than about 56% of the 4,938 comparable items (median $107.99).

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Specifications

No published specifications for this item yet.

Questions about this item

How much heat and noise does the 7200RPM 3.5-inch drive produce during continuous operation?

The 7200RPM spindle speed on a 3.5-inch form factor generates typical mechanical drive heat and audible seek noise under sustained load.

Which cables and motherboard port are required to install this SATA 6Gb/s hard drive?

A standard SATA data cable and a SATA power connector from the power supply are needed to connect the drive to a motherboard SATA port.

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