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Silver 2.5 inch SAS hard drive with hot-swap tray

DELL

DELL 400-AHFG 1.2TB 2.5" SAS 12Gb/s 10000 RPM internal hard drive

SKU CH-SXR8-DTTHW

A 1.2TB 2.5-inch SAS drive spinning at 10000 RPM with a 12Gb/s interface for hot-swap server bays

  • Total capacity1.2 TB
  • Interface typeSAS 12Gb/s
  • Form factor2.5 in (6.35 cm)
  • Packaging typeBare Drive
  • Rotational speed10,000 RPM
  • Mean latency12Gb/s
  • High-speed data access with 10000 RPM spindle
  • 2TB capacity stores large enterprise datasets
  • 12Gb/s SAS interface delivers rapid transfer rates
  • 5-inch form factor fits dense server bays
  • Hot-swap tray enables drive replacement without downtime

Dell 400-AHFG 1.2TB SAS Drive

This Dell 400-AHFG is a 1.2TB 2.5-inch internal hard drive with a SAS 12Gb/s interface and a 10000 RPM spindle. It is built for servers and storage arrays that need hot-swap capability and nearline performance. The bare-drive packaging suits system integrators and IT departments replacing or expanding drive bays. Dell original part number 400-AHFG ensures compatibility with qualified Dell platforms.

Suits hot-swap bays; not for fixed trays

Administrators running Dell PowerEdge or compatible enclosures with hot-swap backplanes will find this drive a direct fit. It is not suitable for systems that only accept fixed-mount 2.5-inch drives or that lack a SAS 12Gb/s controller. Laptop users and desktop builders without a SAS host adapter should look elsewhere. Workloads demanding higher capacity per spindle or solid-state latency will need a different class of drive.

SAS 12Gb/s interface decides fit

The single specification that determines whether this part works in your environment is the SAS 12Gb/s interface. Your backplane, RAID controller or HBA must support 12Gb/s SAS signalling for the drive to operate at its rated transfer rate. Without a compatible SAS connection the drive will not function, regardless of capacity or spindle speed.

How it compares

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

Price $70.99
Cheaper than about 64% of the 4,938 comparable items (median $107.99).
Total capacity 1.2 TB
Lower than about 58% of the 2,372 comparable items (median 2 TB).
Price per TB $59.16 per TB
Typical for this category: the median of 2,365 items is $62.21 per TB.

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Specifications

Product
Brand nameDell
Model name400-AHFG
Total capacity1.2 TB
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

Should I choose the 1.2TB 10000 RPM SAS drive or a lower-capacity alternative?

The 1.2TB capacity combined with 10000 RPM provides higher throughput and lower latency than smaller nearline SAS drives, making it better suited for transactional workloads that need both space and speed.

What does the 12Gb/s transfer rate mean once the drive is installed in a server?

The 12Gb/s SAS interface allows the drive to sustain sequential reads and writes near the interface limit, so large backup jobs and database scans complete faster than on 6Gb/s SAS drives.

Does the SAS 12Gb/s interface cap performance in a typical RAID controller?

A SAS 12Gb/s controller matches the drive's native speed, so the 10000 RPM spindle becomes the limiting factor rather than the interface, delivering full nearline SAS performance.

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