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Silver 2.5 inch SATA hard drive bare circuit board visible

DELL

DELL ST91000640NSProduct 1TB 2.5" SATA 7200 RPM internal hard drive

SKU CH-2KVC-50QE0 MPN ST91000640NSProduct

A 1 TB, 2.5-inch SATA internal hard drive spinning at 7200 RPM with a 6 Gb/s interface, built for server workloads

  • Total capacity1 TB
  • Interface typeSATA
  • Form factor2.5 in (6.35 cm)
  • Packaging typeBare Drive
  • Rotational speed7,200 RPM
  • Mean latency6Gb/s
  • 1 TB capacity stores large datasets
  • 7200 RPM spindle speed accelerates data access
  • SATA 600 interface delivers 6 Gb/s throughput
  • 5 inch form factor fits dense server bays
  • Designed for server workloads with hot-swap support

Dell 1 TB 2.5" SATA server drive

This 2.5-inch internal hard drive delivers 1 TB of storage on a SATA 600 interface. It spins at 7200 RPM and is built for server environments that need reliable capacity in a compact form factor.

Thermals noise and power in normal use

The bare drive operates at a standard 7.2K spindle speed with a SATA 600 link. In typical server workloads it runs within normal mechanical hard drive thermal and acoustic ranges without requiring special cooling.

The spec that decides fit

The drive uses a 2.5-inch SATA form factor and a 6 Gb/s interface, so it only fits bays and controllers that accept that exact combination. Builders needing a different physical size or a faster protocol must choose another part.

How it compares

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

Price $78.99
Cheaper than about 59% of the 4,938 comparable items (median $107.99).
Total capacity 1 TB
Lower than about 60% of the 2,372 comparable items (median 2 TB).
Price per TB $78.99 per TB
Pricier than about 57% of the 2,365 comparable items (median $62.21 per TB).

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Specifications

Product
Brand nameDell
Model name9KW4J
Total capacity1 TB
Recommended useIdeal for Servers
Performance
Rotational speed7,200 RPM
Mean latency6Gb/s
Ports & slots
Interface typeSATA
Size & build
Form factor2.5 in (6.35 cm)

Questions about this item

How is the 2.5" SATA drive installed in a server bay, and what step do people get wrong?

Slide the drive into a 2.5" hot-swap tray until the SATA connector seats firmly, then lock the tray lever; the common mistake is leaving the lever unlatched so the drive disconnects under vibration.

What maintenance or replacement will the 1TB 7200 RPM drive need later?

No scheduled maintenance is required; replace the drive when SMART attributes report reallocated sectors or when the server RAID controller flags a predictive failure.

What limit appears first on the ST91000640NS during sustained writes?

The 600 MB/s SATA interface caps sustained throughput before the 7200 RPM platters reach their own sequential ceiling.

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