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Silver 2.5 inch SAS hard drive bare unit with hot swap tray

DELL

DELL 400-ACXT 900GB 2.5" SAS 10000 RPM internal hard drive

SKU CH-8KMW-RZC6C

A 900 GB 2.5" SAS hard drive spinning at 10000 RPM with a 12 Gb/s interface and hot-swap tray

  • Total capacity900 GB
  • Interface typeSAS 12Gb/s
  • Form factor2.5 in (6.35 cm)
  • Packaging typeBare Drive
  • Rotational speed10,000 RPM
  • Mean latency12Gb/s
  • 900 GB capacity stores large enterprise datasets
  • 10 000 RPM spindle delivers fast data access
  • SAS 12 Gb/s interface enables high-throughput transfers
  • 5 inch form factor fits dense server bays
  • Hot-swap tray allows drive replacement without downtime

900 GB 2.5" SAS enterprise drive

This Dell 400-ACXT is a 900 GB 2.5 inch SAS hard drive spinning at 10000 RPM. It is built for servers and storage arrays that need fast sequential access and high IOPS in a compact form factor. The bare-drive packaging means it arrives without a carrier, ready for hot-swap trays.

Hot-swap tray compatibility

The drive uses a standard 2.5 inch SAS connector and is designed for hot-swap trays, allowing replacement without powering down the enclosure. A 12 Gb/s interface supports the 6 Gb/s transfer rate, so existing 6 Gb/s backplanes work without negotiation issues. Bare drive delivery requires the installer to supply a matching carrier or sled.

10K RPM thermal profile

At 10000 RPM the spindle generates more heat and vibration than slower drives, so adequate airflow in the drive bay is necessary for sustained operation. Power draw rises during heavy random workloads, and the acoustic profile is noticeable in quiet rack environments. The SAS interface maintains consistent throughput under load without protocol overhead.

How it compares

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

Price $73.99
Cheaper than about 62% of the 4,938 comparable items (median $107.99).
Total capacity 900 GB
Lower than about 64% of the 2,372 comparable items (median 2 TB).
Price per TB $82.21 per TB
Pricier than about 58% of the 2,365 comparable items (median $62.21 per TB).

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Specifications

Product
Brand nameDell
Model name400-ACXT
Total capacity900 GB
Performance
Rotational speed10,000 RPM
Mean latency12Gb/s
Ports & slots
Interface typeSAS 12Gb/s
Size & build
Form factor2.5 in (6.35 cm)

Questions about this item

What practical throughput does the SAS 12Gb/s interface cap at with this drive?

The drive's transfer rate is 6Gb/s, so the SAS 12Gb/s link will operate at 6Gb/s in practice.

What physical space and mounting style does the 2.5-inch hot-swap tray require?

It fits a standard 2.5-inch hot-swap bay; the tray slides in and locks without screws.

How is the drive installed and which step is often missed?

Slide the hot-swap tray into the bay until the latch clicks; the step often missed is ensuring the latch fully engages to connect the SAS and power contacts.

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