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Silver 3.5 inch SAS hard drive with Dell label

DELL

DELL R5KP7 20TB 7.2k 512e 12Gbps SAS 3.5 internal hard drive

SKU CH-ERV4-KFW40

A 20 TB, 7.2k SAS internal hard drive using 512e format and a 12 Gbps interface, compatible with PowerEdge servers from the 440 to 7725 series

  • Capacity20TB
  • InterfaceSAS
  • 20TB capacity stores massive datasets
  • 2k RPM delivers consistent throughput for nearline workloads
  • 12Gbps SAS interface enables high-speed data transfer
  • 512e format ensures compatibility with legacy and modern systems
  • Validated across Dell PowerEdge servers and storage arrays including R740, R750, R760, MD2460, ME5212

20 TB SAS hard drive

This 3.5-inch internal hard drive delivers 20 TB of storage over a 12 Gbps SAS interface. It spins at 7.2k RPM and uses 512e formatting for broad compatibility. The drive is built on the Exos X24 platform and ships new with updated firmware.

12 Gbps SAS interface limits

The SAS connection tops out at 12 Gbps, so sustained throughput cannot exceed that ceiling. Mechanical latency at 7.2k RPM restricts random access speed compared with solid-state media. The 512e sector format adds a small translation layer for legacy operating systems.

20 TB capacity and headroom

Twenty terabytes provides ample room for bulk data, backups and near-line archives in compatible PowerEdge and MD enclosures. The drive fills large arrays efficiently but will saturate the 12 Gbps link before its platters run out of space. Buyers needing higher IOPS or lower latency should consider solid-state alternatives.

Points forts

  • 20TB capacity stores massive datasets
  • 2k RPM delivers consistent throughput for nearline workloads
  • 12Gbps SAS interface enables high-speed data transfer
  • 512e format ensures compatibility with legacy and modern systems
  • Validated across Dell PowerEdge servers and storage arrays including R740, R750, R760, MD2460, ME5212

Caractéristiques

BrandDell
ModelR5KP7, ST20000NM007H
Capacity20TB
InterfaceSAS

Questions sur cet article

Should I pick the 20TB version or a smaller capacity for my PowerEdge R750?

The R5KP7 is offered in a single 20TB capacity; choose it when you need maximum nearline storage per bay in a supported PowerEdge server.

What does the 7.2k RPM rating mean for daily throughput on a SAS backplane?

At 7.2k RPM the drive delivers sustained sequential speeds suited to bulk archives and backup targets rather than low-latency transactional workloads.

How does the 12Gbps SAS interface limit real-world transfer rates?

The 12Gbps SAS link caps theoretical bandwidth at 12Gbps; actual throughput depends on the controller, cable length and drive firmware but cannot exceed that ceiling.

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