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Silver 3.5-inch SAS hard drive with tray, bare drive packaging

DELL

DELL 6P85J 4TB 3.5" SAS 7200 RPM internal hard drive

SKU CH-0MNH-P47CN

A 4 TB SAS enterprise drive with 7200 RPM speed and 128 MB buffer for server storage

  • Total capacity4 TB
  • Interface typeSAS 6Gb/s
  • Form factor3.5 in (8.89 cm)
  • Packaging typeBare Drive
  • Flash memory typeSLC
  • Rotational speed7,200 RPM
  • Enterprise-ready capacity with 4TB storage
  • Reliable 7200 RPM performance for demanding workloads
  • Secure SAS 6Gb/s interface for data integrity
  • Self-encrypted design protects sensitive information
  • 128MB buffer accelerates read and write operations

Enterprise capacity drive

The Dell 6P85J is a 4TB 3.5 inch SAS hard drive spinning at 7200 RPM. It is built for enterprise storage arrays that need high-capacity bulk storage with self-encryption. The drive includes a 128MB buffer and uses SLC NAND for enhanced endurance in write-heavy workloads. It ships as a bare drive with a tray for direct installation into compatible server bays.

Server bay integration

The SAS 6Gb/s interface connects directly to a compatible RAID controller or backplane in PowerEdge and PowerVault systems. No separate power adapter is required beyond the standard backplane supply. The 3.5 inch form factor with included tray fits dedicated hot-swap bays, freeing internal cabling space compared to 2.5 inch alternatives. Installation is tool-less in supported Dell chassis.

Thermal and power profile

The 7200 RPM spindle draws typical enterprise power levels for a 3.5 inch drive under sustained throughput. Operational acoustics are standard for high-capacity nearline SAS mechanics in a server chassis. The SLC NAND and 128MB buffer help maintain consistent latency during mixed read-write cycles. Adequate chassis airflow is expected to maintain rated operating temperatures.

How it compares

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

Price $258.99
Pricier than about 78% of the 4,938 comparable items (median $107.99).
Total capacity 4 TB
Higher than about 70% of the 2,372 comparable items (median 2 TB).
Price per TB $64.75 per TB
Typical for this category: the median of 2,365 items is $62.21 per TB.

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Specifications

Product
Brand nameDell
Model name6P85J
Total capacity4 TB
Recommended useFor Enterprise Storage
Performance
Rotational speed7,200 RPM
Mean latency6Gb/s
Storage
Flash memory typeSLC
Ports & slots
Interface typeSAS 6Gb/s
Size & build
Form factor3.5 in (8.89 cm)

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