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Rectangular silver server PSU with rear fan grille and side label

WMtec

WMtec server power supply 240W for OptiPlex 3040 5040 7040 3650 3656 SFF

SKU CH-3YQ1-H1N13

240 W power supply compatible with OptiPlex 3040, 5040, 7040, 3650 and 3656 SFF systems

  • 240 W output supports demanding SFF workloads
  • Wide 100-240 V input works worldwide without a converter
  • Direct replacement for part numbers 3RK5T, 0G2JM, 0M2WH, 379F0, H62JR
  • Fits OptiPlex 3040, 5040, 7040, 3650, 3656 SFF chassis
  • Operates at 50-60 Hz for stable power delivery

240 W SFF replacement unit

This 240 W server power supply is built for OptiPlex 3040, 5040, 7040, 3650 and 3656 small-form-factor desktops. It matches the original L240AM-00, B240AM-00, HU240AM-00, AC240AM-00 and H240EM-00 part numbers and the 3RK5T, 0G2JM, 0M2WH, 379F0 and H62JR service codes. The unit accepts 100-240 V input at 4.0 A across 50-60 Hz mains.

Capacity and headroom at 240 W

The 240 W rating covers the standard CPU, integrated graphics, memory and storage complement shipped in these SFF chassis. It runs out when a discrete graphics card or additional high-draw peripherals are added beyond the factory configuration. The 4.0 A input limit at low line voltage defines the practical ceiling for sustained load.

Direct swap for listed part numbers

This unit replaces the exact Dell part numbers listed above without wiring or bracket changes. The jump is worth it when the original supply has failed or shows voltage drift under load. It is not for builders converting the chassis to higher-wattage components or non-SFF form factors.

Highlights

  • 240 W output supports demanding SFF workloads
  • Wide 100-240 V input works worldwide without a converter
  • Direct replacement for part numbers 3RK5T, 0G2JM, 0M2WH, 379F0, H62JR
  • Fits OptiPlex 3040, 5040, 7040, 3650, 3656 SFF chassis
  • Operates at 50-60 Hz for stable power delivery

Specifications

No published specifications for this item yet.

Questions about this item

Will the 240 W unit power an OptiPlex 3040 SFF that still has its original motherboard and CPU?

Yes — the supply is listed for the 3040, 5040, 7040, 3650 and 3656 SFF models and delivers up to 240 W at 100-240 V input.

How can I confirm the L240AM-00 is running correctly after installation?

The system should POST and remain stable under load; the fan spins and no power-warning LEDs appear on the front panel.

Does the box include the 3RK5T, 0G2JM, 0M2WH, 379F0 or H62JR cables, or must I order them separately?

Only the power-supply unit itself is supplied; any specific Dell part-numbered cables or brackets must be sourced separately.

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