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Silver 3.5 inch hybrid SAS drive with hot-swap tray

DELL

DELL 043N12 1.8TB 10K SAS 3.5" Hybrid internal hard drive

SKU CH-K34K-V8H9G MPN 043N12

1.8 TB hybrid drive with 10 000 RPM SAS interface, 128 MB cache and hot-swap support for 3.5" bays

  • Total capacity1.8 TB
  • Interface typeSAS
  • Form factor3.5 in (8.89 cm)
  • Rotational speed10,000 RPM
  • 8TB capacity stores large datasets
  • 10000 RPM speeds up data access
  • Hybrid design blends HDD capacity with SSD cache
  • 128MB cache buffers frequent reads and writes
  • Hot-swap support simplifies drive replacement

1.8TB SAS hybrid drive

This Dell 043N12 is a 3.5-inch internal hard drive that combines a 1.8TB mechanical platter with a solid-state cache. It spins at 10000 RPM and connects through a SAS interface. The hybrid design targets servers and workstations that need both capacity and quicker access to frequently used data.

128MB cache and hot-swap tray

The 128MB buffer smooths burst transfers while the integrated flash portion accelerates read-heavy workloads. A hot-swap carrier lets administrators replace the unit without powering down the chassis, reducing downtime in multi-bay enclosures.

Verify SAS backplane and 3.5-inch bay

Confirm the host system provides a SAS backplane or controller and a standard 3.5-inch drive bay with the correct carrier latch. Buyers needing a pure solid-state device or a SATA-only connection should consider a different product class.

How it compares

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

Price $118.99
Typical for this category: the median of 4,938 items is $107.99.
Total capacity 1.8 TB
Typical for this category: the median of 2,372 items is 2 TB.
Price per TB $66.11 per TB
Typical for this category: the median of 2,365 items is $62.21 per TB.

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Specifications

Product
Total capacity1.8 TB
Performance
Rotational speed10,000 RPM
Ports & slots
Interface typeSAS
Size & build
Form factor3.5 in (8.89 cm)

Questions about this item

How often should the 128MB cache be monitored or replaced during the drive's lifespan?

The 128MB cache is integrated into the drive's controller board and requires no separate maintenance or replacement. It operates for the life of the drive itself.

Does the 10000 RPM spindle speed create a thermal limit before the SAS interface saturates under sustained writes?

The 10000 RPM mechanical operation typically reaches thermal throttling thresholds before the SAS interface bandwidth becomes the bottleneck during sustained workloads.

What is the typical power draw and noise level when the hybrid drive runs continuously in a server chassis?

The 3.5 inch hybrid drive draws standard SAS power levels for 10000 RPM operation and produces audible seek noise typical of enterprise mechanical drives under constant load.

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