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Silver 2.5 inch SAS hard drive bare unit with circuit board visible

DELL

DELL 400-ATII 300GB 2.5" 15000 RPM SAS internal hard drive

SKU CH-YCRJ-6HPSF MPN 400-ATII

A 300 GB 2.5-inch 15000 RPM SAS internal hard drive built for enterprise storage

  • Total capacity300 GB
  • Interface typeSAS 6Gb/s
  • Form factor2.5 in (6.35 cm)
  • Packaging typeBare Drive
  • Rotational speed15,000 RPM
  • Mean latency6Gb/s
  • Fast disk access from 15000 RPM spindle speed
  • High data transfer rates via SAS 12Gb/s interface
  • 300 GB capacity stores large amounts of enterprise data
  • 5 inch hot-plug form factor fits compatible PowerEdge servers
  • Designed for enterprise storage workloads in Dell systems

Enterprise 300 GB SAS drive

This 2.5-inch internal hard drive spins at 15000 RPM and connects through a SAS interface. It is built for enterprise storage arrays and compatible Dell PowerEdge servers. The 300 GB capacity suits transactional workloads that demand quick random access. Buyers needing larger archival volumes should look at higher-capacity alternatives.

SAS 12 Gb/s interface limit

The drive uses a 12 Gb/s SAS link, so throughput tops out at that signalling rate. Backplanes or controllers limited to 6 Gb/s will restrict the drive to the slower speed. Cable length and connector quality also affect realised bandwidth. Systems without SAS host adapters cannot use this drive at all.

300 GB capacity headroom

At 300 GB the drive holds operating-system images, databases or log files that benefit from 15000 RPM latency. Sequential workloads will fill the space quickly, and sustained writes can saturate the media transfer rate. Workloads requiring multi-terabyte datasets need additional drives or larger-capacity models.

How it compares

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

Price $270.99
Pricier than about 80% of the 4,938 comparable items (median $107.99).
Total capacity 300 GB
Lower than about 88% of the 2,372 comparable items (median 2 TB).
Price per TB $903.30 per TB
Pricier than about 90% of the 2,365 comparable items (median $62.21 per TB).

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Specifications

Product
Brand nameDell
Model name400-ATII
Total capacity300 GB
Recommended useFor Enterprise Storage
Performance
Rotational speed15,000 RPM
Mean latency6Gb/s
Ports & slots
Interface typeSAS 6Gb/s
Size & build
Form factor2.5 in (6.35 cm)
Shipping weight0.91 kg
Package size445 × 311 × 76 mm

Questions about this item

Should I pick the 300 GB 15000 RPM SAS drive or a lower-capacity model for my Dell PowerEdge R740?

The 300 GB capacity with 15000 RPM spindle speed is designed for enterprise storage workloads; choose it when you need maximum IOPS and capacity in a 2.5 inch hot-plug bay.

How does the 15000 RPM speed affect real-world performance in a PowerEdge R640?

A 15000 RPM spindle reduces average latency and sustains high random IOPS, giving faster database and virtualization response inside the server chassis.

The drive lists both SAS 6Gb/s and 12Gb/s SAS — which link speed will I actually get?

The drive interface standard is 12Gb/s SAS; the controller in your PowerEdge R940 or C6420 will negotiate the highest supported link, up to 12Gb/s.

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