Dell

Dell L305N-00 Optiplex GX620 305W Power Supply

Name: Dell L305N-00 Optiplex GX620 305W Power Supply
Brand: Dell
SKU: L305N-00, N305P-03, N305P-00, N305N-00
Rating: 5.0 (2 reviews)

★★★★★5.0 (2 reviews)

305W

Reliable Power for Your Dell OptiPlex with the W8185 Power SupplyThe W8185 is a 305W ATX 2.0 SATA power supply designed for Dell OptiPlex GX620 systems. Providing stable and efficient power delivery, this power supply ensures reliable operation for your desktop computer. Specifications: Pow...

$20.00*

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*Price sourced from Amazon.com. Last updated:Jun 27, 2026.Price and availability are subject to change.

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Overview

Reliable Power for Your Dell OptiPlex with the W8185 Power Supply

The W8185 is a 305W ATX 2.0 SATA power supply designed for Dell OptiPlex GX620 systems. Providing stable and efficient power delivery, this power supply ensures reliable operation for your desktop computer.

Specifications:

Power Output: 305W
Type: ATX 2.0
Connectors: SATA
Compatibility: Dell OptiPlex GX620

Key Features

Genuine Dell 305w Power Supply

305 W Max Output

100-127V or 200-240V Input

Dimensions: 6 W x 4 H x 5.5 D - Inches

Specifications

Brand

Dell

Maximum Output Power

305W

Input Voltage

100-127V or 200-240V

Dimensions

6 W x 4 H x 5.5 D inches

Compatibility

Dell Optiplex GX620

Pros & Cons

👍 Pros

Provides a genuine Dell power supply unit, ensuring optimal compatibility and performance with Dell Optiplex GX620 systems.
Offers a maximum output of 305W, which is sufficient for the specified Optiplex GX620 model's power requirements.
Supports dual input voltage ranges (100-127V or 200-240V), making it suitable for use in various global electrical environments.
The specified dimensions (6 W x 4 H x 5.5 D inches) allow for precise fitment into the Optiplex GX620 chassis.
Designed as a direct replacement, simplifying the process of repairing or upgrading power in a compatible Dell system.

👎 Cons

Exclusively designed for the Dell Optiplex GX620, limiting its use and compatibility with other computer models.
The 305W maximum output might be considered low for systems that are heavily upgraded or require more powerful components.
Specific details about the power supply's efficiency rating (e.g., 80 PLUS certification) are not provided.
The product features do not mention modular cabling, which could make cable management more challenging in some system builds.
As a genuine Dell part for an older system, its availability or future support might become a consideration over time.

Frequently Asked Questions

Is this power supply compatible with other Dell models besides the Optiplex GX620?

This power supply is specifically identified as being for the Dell Optiplex GX620, and its compatibility with other models is not stated.

What is the maximum power output of this Dell power supply?

The Dell L305N-00 power supply offers a maximum output of 305 watts.

Can this power supply be used in different countries with varying voltage standards?

Yes, it supports input voltage ranges of either 100-127V or 200-240V, making it adaptable to different electrical grids.

What are the physical dimensions of this power supply unit?

The dimensions of this power supply are 6 inches in width, 4 inches in height, and 5.5 inches in depth.

Is this a new or refurbished power supply?

The product title does not specify if it is new or refurbished, only that it is a "Genuine Dell" part.

Dell L305N-00 Optiplex GX620 305W Power Supply

Overview