Dell 750-Watts Power Supply for Dell Precision 490 690 Server – JK933

Dell 750W Power Supply for Precision 490 and 690 Workstations

The Dell JK933 is a genuine 750-watt power supply unit designed for Dell Precision 490 and 690 workstations. It delivers stable, high-wattage power for demanding workstation configurations including multiple GPUs, high-core-count processors, and large storage arrays.

Key Features

• 750W output for high-demand workstation configurations
• Genuine OEM Dell replacement for Precision 490 and 690
• Direct drop-in replacement — no modifications required
• Stable power delivery for multi-GPU and multi-drive setups

Product Specifications

• Part Number: JK933
• Manufacturer: Dell
• OEM Status: OEM
• Wattage: 750W
• Compatible Models: Dell Precision 490, Dell Precision 690
• Form Factor: Proprietary Dell workstation PSU

Power & Electrical Specifications

• Output Power: 750W
• Input Voltage: 100–240V AC auto-ranging
• Connector Type: Proprietary Dell (direct replacement)
• Efficiency: Standard efficiency (non-80 Plus rated)
• Cooling: Internal fan

Use Cases

• Replacing a failed PSU in Dell Precision 490 or 690 workstations
• Restoring full power capacity for multi-GPU workstation builds
• Preventive PSU replacement during workstation refurbishment

Compatibility

• Compatible with Dell Precision 490 and Dell Precision 690 workstations only
• Not compatible with Dell PowerEdge servers or other Precision models

Frequently Asked Questions

Is this compatible with the Dell Precision 390?

No — the JK933 is designed specifically for the Precision 490 and 690. The Precision 390 uses a different PSU form factor.

Is this a genuine Dell OEM part?

Yes — the JK933 is a genuine OEM Dell power supply ensuring full electrical and mechanical compatibility.

Does it support redundant PSU configurations?

No — the Precision 490 and 690 are single-PSU workstations and do not support redundant power supply configurations.

Restore full power to your Dell Precision 490 or 690 workstation with the genuine OEM JK933 750W power supply. Order today and get your workstation back to peak performance.