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

DELL

DELL 5WT78 6TB 3.5" SAS 7200 RPM internal hard drive

SKU CH-FMWN-HXBYK

A 6 TB 3.5-inch SAS hard drive spinning at 7200 RPM for nearline server storage

  • Total capacity6 TB
  • Interface typeSAS 6Gb/s
  • Form factor3.5 in (8.89 cm)
  • Packaging typeBare Drive
  • Flash memory typeSLC
  • Rotational speed7,200 RPM
  • 6 TB capacity stores large datasets
  • 7200 RPM spindle delivers fast sequential throughput
  • SAS 6 Gb/s interface connects directly to servers
  • 5 inch form factor fits standard drive bays
  • Hot-swap tray enables drive changes without downtime

Dell 5WT78 6 TB SAS drive

The Dell 5WT78 is a new 6 TB 3.5-inch internal hard drive with a SAS 6 Gb/s interface spinning at 7200 RPM. It arrives as a bare drive with a tray for hot-swap bays in Dell PowerEdge servers. The nearline design targets bulk storage workloads in enterprise environments.

Suited for hot-swap server bays.

This drive fits administrators who need high-capacity nearline storage in a hot-swap SAS chassis. It is not for systems that lack a SAS backplane or controller, nor for laptops or small-form-factor enclosures that only accept 2.5-inch drives. Workloads requiring solid-state latency should consider a different media type.

SAS 6 Gb/s interface decides compatibility

The single specification that determines fit is the SAS 6 Gb/s interface; the host must provide a matching SAS port and backplane. Without that connection the drive cannot communicate, regardless of capacity or spindle speed. Verify the server or controller supports 6 Gb/s SAS before purchase.

How it compares

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

Price $86.99
Cheaper than about 57% of the 4,938 comparable items (median $107.99).
Total capacity 6 TB
Higher than about 75% of the 2,372 comparable items (median 2 TB).
Price per TB $14.50 per TB
Cheaper than about 95% of the 2,365 comparable items (median $62.21 per TB).

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Specifications

Product
Brand nameDell
Model name5WT78
Total capacity6 TB
Performance
Rotational speed7,200 RPM
Storage
Flash memory typeSLC
Ports & slots
Interface typeSAS 6Gb/s
Size & build
Form factor3.5 in (8.89 cm)

Questions about this item

What does the SAS 6 Gb/s interface limit in practice?

The SAS 6 Gb/s link caps the maximum data-transfer rate at six gigabits per second, so sustained throughput cannot exceed that ceiling.

What physical space does the 3.5 inch form factor and tray require?

The drive fits a standard 3.5 inch bay and ships with a tray that adds the necessary mounting points for a PowerEdge server chassis.

How is the hot-swap drive installed and what step is often missed?

Slide the tray into the hot-swap bay until the latch clicks; the step people forget is fully engaging the latch so the SAS and power connectors seat completely.

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