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Internal power cable with multiple connectors for Dell desktops

Ruth's sister

Ruth's sister 250W internal power cable for Dell 990 790 390

SKU CH-BD20-AJQEJ

250W internal power cable compatible with Dell 990, 790 and 390 systems

  • Delivers 250 W to power Dell OptiPlex systems
  • Compatible with Dell 990, 790 and 390 models
  • Replaces multiple Dell part numbers including HU250AD-00 and L250ED-00
  • New condition internal cable for reliable desktop upgrades

Compatible Dell desktop power adapter

This 250 W internal power cable replaces the original supply in Dell OptiPlex 390, 790 and 990 desktops. It matches part numbers HU250AD-00, H250AD-00, L250ED-00, D250AD-00, L250NS-00 and L250PS-00. The unit is new and intended for system integrators or owners restoring these specific models.

Thermals noise and power draw

The adapter delivers up to 250 W to the motherboard and installed components. Under normal loads the internal fan spins at a low speed, keeping audible noise to a minimum. Power consumption at the wall scales with the connected hardware, so total draw stays within the rated limit during typical office or home use.

How it compares

Measured against everything we stock in Internal PSU & Riser Cables, at today’s prices. Recalculated every night.

Price $66.99
Pricier than about 88% of the 7,839 comparable items (median $14.99).

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Specifications

No published specifications for this item yet.

Questions about this item

How do I install the 250W HU250AD-00 cable in a Dell 990 and what step is often missed?

Route the cable through the chassis cut-out, seat the 24-pin and 4-pin connectors fully until they click, then secure the retention latch that locks the supply to the frame — skipping the latch leaves the unit loose.

What maintenance will the L250ED-00 adapter need after extended use in a Dell 790?

Dust the intake vents and fan blades every six months with compressed air; if the fan becomes noisy or the 250W output drops under load, replace the entire supply unit.

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