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Standard 3.5-inch SAS hard drive, silver metal casing, label shows 12TB capacity

HPE

HPE 881779-B21 12TB 7200 RPM SAS 12Gb/s 3.5" internal hard drive

SKU CH-W1DC-0A5AK MPN 881779-B21

High-capacity 12TB 3.5-inch SAS 12Gb/s drive at 7200 RPM for bulk server storage

  • InterfaceSAS 12Gb/s
  • Capacity12TB
  • RPM7200 RPM
  • Form Factor3.5"
  • Height (maximum)26.80mm
  • Width (maximum)105.80mm
  • 12 TB capacity for bulk storage workloads
  • 7200 RPM spindle speed for responsive data access
  • SAS 12 Gb/s interface for high-throughput connectivity
  • 5-inch LFF form factor fits standard server bays
  • HPE qualification ensures ProLiant compatibility

HPE 12TB SAS 12Gb/s Midline Drive

The HPE 881779-B21 is a 12TB 3.5-inch internal hard drive built for server and bulk-storage workloads. It spins at 7200 RPM and uses a SAS 12Gb/s interface with digitally signed firmware. The drive is qualified for HPE ProLiant environments and supports SMART monitoring via HPE Systems Insight Manager. It suits administrators who need high-capacity, reliable storage for growing data sets.

SAS 12Gb/s Interface Practical Limits

The SAS 12Gb/s link tops out at 12 gigabits per second, but sustained throughput depends on the drive’s 7200 RPM mechanical speed and the controller’s queue depth. Real-world transfer rates will be lower than the interface maximum, especially with random I/O patterns. The 512e sector format adds a small translation overhead. Ensure your backplane and cabling are rated for 12Gb/s to avoid bottlenecks.

Compatibility Checks Before Ordering

Verify that your server chassis accepts a 3.5-inch drive with a maximum height of 26.80mm, width of 105.80mm and length of 170.00mm. Confirm the controller supports SAS 12Gb/s and 512e sector drives. Check that the backplane provides the correct power and signal connectors for a SAS Midline unit. This drive is not for systems limited to SATA-only backplanes or 2.5-inch bays.

Pontos fortes

  • 12 TB capacity for bulk storage workloads
  • 7200 RPM spindle speed for responsive data access
  • SAS 12 Gb/s interface for high-throughput connectivity
  • 5-inch LFF form factor fits standard server bays
  • HPE qualification ensures ProLiant compatibility

Especificações

BrandHPE
Model881779-B21
InterfaceSAS 12Gb/s
Capacity12TB
RPM7200 RPM
Form Factor3.5"
Height (maximum)26.80mm
Width (maximum)105.80mm
Length (maximum)170.00mm
Peso de envio2.27 kg
Dimensões da embalagem279 × 229 × 152 mm

Perguntas sobre este artigo

Should I choose the 12TB SAS 12Gb/s version or a different capacity for my server?

This model is a single 12TB capacity with a SAS 12Gb/s interface. Select it when you need maximum midline capacity in a 3.5-inch bay; smaller capacities would require a different part number.

What does the 7200 RPM rating deliver in an actual ProLiant server?

At 7200 RPM the drive provides midline performance suited to bulk storage, cloud repositories and web-serving workloads where sustained throughput matters more than low latency.

How does the SAS 12Gb/s interface limit real-world transfer speeds?

The SAS 12Gb/s link caps the theoretical maximum at 12 gigabits per second; actual throughput will be lower and depends on the controller, cable length and system load.

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