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Silver rectangular metal power supply unit with rear fan grille and cable bundle

DELL

DELL L220P-00Product 220 W ATX 12V power supply

SKU CH-59P2-M25QK MPN L220P-00Product

220 W ATX 12V unit with 13 A on the 12 V rail, 17 A on 5 V and 4 A on 3.3 V for Dell Optiplex GX520 and GX620 desktops

  • Max wattage220 W
  • 12V rails1
  • Supply voltage110 V AC 220 V AC
  • Product typeATX 12 V
  • Product weight4
  • Delivers 220 W continuous output for stable desktop operation
  • Single +12 V rail rated at 13 A powers CPU and drives reliably
  • Wide 110 V AC to 220 V AC input suits global mains voltages
  • Dedicated 5 V standby rail at 1 A keeps wake functions active
  • Direct replacement for Dell OptiPlex GX520 and GX620 desktops

Dell 220 W ATX12V unit

The Dell L220P-00Product is a 220 W ATX12V power supply built for Dell Optiplex GX520 and GX620 desktop chassis. It delivers 3.3 V at 4 A, 5 V at 17 A, 12 V at 13 A, -12 V at 500 mA and 5 V standby at 1 A from a single 12 V rail. The unit accepts 110 V AC or 220 V AC input.

Single 12 V rail at 13 A

The defining specification is the single +12V rail rated at 13 A, which limits the total 12 V power available to the motherboard and any installed cards. If the system configuration draws more than this on the 12 V line, the supply will not sustain stable operation.

Fits Optiplex GX520 and GX620

Designed as a direct replacement for the original Dell K8965 unit, it mounts internally in the proprietary Optiplex desktop form factor. The 220 W ceiling frees no headroom for high-power graphics upgrades, so the build must stay within the original platform power envelope.

How it compares

Measured against everything we stock in ATX Desktop Power Supplies, at today’s prices. Recalculated every night.

Price $43.99
Cheaper than about 92% of the 10,869 comparable items (median $142.99).
Max wattage 220 W
Lower than about 96% of the 930 comparable items (median 850 W).

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Specifications

Product
Brand nameDELL
Product typeATX 12 V
Power
Max wattage220 W
12V rails1
Supply voltage110 V AC 220 V AC

Questions about this item

Will 220 W be enough for my OptiPlex GX520 or GX620 desktop?

This is the original Dell 220 W ATX12V unit shipped with those models, so it matches the factory power budget for the motherboard, CPU and standard peripherals.

What does the single 12 V rail rated at 13 A mean for upgrades?

The +12 V line can deliver 13 A, which sets the limit for any added graphics card or drive that draws from 12 V; total 12 V load must stay at or below that current.

Does this supply fit the standard chassis mounting points of a GX520 or GX620?

Yes, it uses the internal ATX12V form factor designed for those OptiPlex desktops and aligns with the original mounting holes.

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