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Silver 2.5-inch SAS enterprise hard drive with hot-swap tray

DELL

DELL 400-ATJL 1.2TB 10K 12Gbps SAS 2.5 internal hard drive

SKU CH-EHNE-MF4FW MPN 400-ATJL

1.2 TB SAS drive spins at 10K RPM with a 12 Gbps interface for Dell PowerEdge servers

  • Enterprise storage capacity with 1.2TB space
  • Fast data access via 10K RPM spindle
  • High-throughput 12Gbps SAS interface
  • Hot-swap support for zero-downtime drive changes
  • 5-inch form factor fits dense server bays

Enterprise SAS drive for server arrays

This 1.2TB 2.5-inch SAS hard drive spins at 10K RPM and uses a 12Gbps interface for Dell PowerEdge servers. The 512n sector format matches legacy application expectations in enterprise storage pools. Hot-swap capability allows replacement without powering down the chassis.

Sustained throughput in RAID sets

The 10K spindle speed delivers consistent IOPS under continuous read-write cycles typical of database and virtualization workloads. SAS dual-port architecture maintains path redundancy during heavy queue depths. The 12Gbps link prevents the interface from becoming the bottleneck before the mechanical media saturates.

Verify tray and controller compatibility

Confirm the exact drive tray required for your PowerEdge model because the sticker may not be included. Ensure your RAID controller or HBA supports 12Gbps SAS and 512n sector drives. This unit is not designed for desktop motherboards or consumer enclosures lacking SAS backplanes.

How it compares

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

Price $323.99
Pricier than about 84% 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 power and heat does the 1.2TB 10K SAS drive generate when running continuously in a server?

The 1.2TB 10K RPM SAS drive is built for enterprise workloads and typical power draw for this class is in the range of 7–9 W during active operation; heat output scales with that power level, so plan airflow for a 2.5-inch bay accordingly.

What controller or backplane must the system already have to support the 12Gbps SAS interface?

A 12Gbps SAS HBA, RAID controller or backplane is required; the drive uses a standard SAS connector and 512n sector format, so any controller that supports 12Gbps SAS and 512-byte native sectors will recognise it.

Will the 2.5-inch SAS drive fit and function in an older 3.5-inch bay using an adapter tray?

Yes, the 2.5 SFF form factor fits a 3.5-inch bay with a suitable adapter tray; the SAS interface and hot-swap capability remain unchanged, so the drive works the same as in a native 2.5-inch slot.

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