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Silver rectangular server power supply unit with rear fan grille and power socket

DELL

DELL 685W Power Supply for Precision T7810 Workstation

SKU CH-KHAY-2EJCT

A 685W server power supply compatible with the Precision T7810 workstation

  • Product weight5 lb (2.27 kg)
  • 685W output powers the Precision T7810 workstation
  • Designed for Dell Precision T7810 compatibility
  • 90-day warranty covers the power supply
  • Weighs 5.0000LBS for secure installation
  • Model 641329921081 identifies the exact unit

Precision T7810 power supply

This 685W unit is built for the DELL Precision T7810 workstation. It replaces the original supply or adds a spare for maintenance. The part is new and carries a 90 day warranty. Part numbers W4DTF, K8CDY, CYP9P, KTMT8 and VDY4N all reference this model.

685W output rating

The single specification that decides fit is the 685W output. The workstation requires this exact wattage for stable operation. A lower rating will not support the system; a higher rating is not available for this chassis. Buyers who need a different wattage must choose another part.

Thermals and power draw

The supply runs within the thermal envelope designed for the T7810. Fan speed adjusts to load so noise stays at workstation levels. Power draw from the wall matches the 685W rating under full load. The unit weighs 5.0000LBS.

How it compares

Measured against everything we stock in Server & Hot-Plug PSUs, at today’s prices. Recalculated every night.

Price $46.99
Cheaper than about 88% of the 3,798 comparable items (median $131.99).

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Specifications

Product
Brand nameDELL
Model name641329921081
Size & build
Product weight5 lb (2.27 kg)

Questions about this item

Will a 685W power supply run a fully loaded Precision T7810 with dual CPUs and high-end GPUs?

The 685W unit is the factory-rated supply for the Precision T7810 and is designed to support the workstation's maximum qualified configuration within that chassis.

What power connector standard does this supply use to attach to the T7810 motherboard?

It uses the proprietary Dell pin-out and connector keying engineered specifically for the Precision T7810 motherboard.

Does this 685W unit fit the standard Precision T7810 bay without modification?

Yes, it matches the exact form factor and mounting points of the original Precision T7810 power supply bay.

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