---
product_id: 7285903
title: "Dell NH493 Power Supply for Dimension E521/E520 Desktop (L305P-01)"
brand: "dell"
price: "$208.31"
currency: USD
in_stock: true
category: "Dell"
url: https://www.desertcart.ec/products/7285903-dell-nh493-power-supply-for-dimension-e521-e520-desktop-l305p
store_origin: EC
region: Ecuador
---

# 305W reliable power output 10 versatile SATA connectors Efficient air cooling with 1 fan Dell NH493 Power Supply for Dimension E521/E520 Desktop (L305P-01)

**Brand:** dell
**Price:** $208.31
**Availability:** ✅ In Stock

## Summary

> ⚡ Power your productivity with Dell’s trusted 305W powerhouse!

## Quick Answers

- **What is this?** Dell NH493 Power Supply for Dimension E521/E520 Desktop (L305P-01) by dell
- **How much does it cost?** $208.31 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ec](https://www.desertcart.ec/products/7285903-dell-nh493-power-supply-for-dimension-e521-e520-desktop-l305p)

## Best For

- dell enthusiasts

## Why This Product

- Trusted dell brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **10 SATA Connectors:** Plug in multiple drives effortlessly—expand your storage without limits.
- • **Trusted Dell Quality:** Backed by a 4.6-star rating and Dell’s engineering excellence.
- • **Optimized Air Cooling:** Quiet, reliable cooling ensures your system stays cool under pressure.
- • **Steady 305W Power Delivery:** Keep your Dell Dimension running smoothly with consistent, efficient power.
- • **Wide Voltage Compatibility:** Supports 110-120V AC input for stable performance across regions.

## Overview

The Dell NH493 is a 305-watt internal power supply designed for Dell Dimension E521/E520 desktops, featuring 10 SATA connectors and efficient air cooling. It supports 110-120V AC input and is highly rated for reliability and performance, making it an ideal upgrade for professionals seeking dependable power management.

## Description

305 WATT, PFC FOR OPT 330/360/740/745/ 745C/755--, POWER SUPPLY; Part Number: NH493; Category: Power Supplies; Subcategory: Power Supply

## Features

- 305 WATT
- PFC FOR OPT 330/360/740/745/ 745C/755--
- POWER SUPPLY
- Power Supply
- Power Supplies

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B001R5MNI4 |
| Best Sellers Rank | #2,715 in Computer Power Supplies |
| Brand | Dell |
| Compatible Devices | Personal Computer |
| Connector Quantity | 10 |
| Connector Type Used on Cable | SATA |
| Cooling Method | Air |
| Customer Reviews | 4.6 4.6 out of 5 stars (98) |
| Form Factor | Internal |
| Global Trade Identification Number | 05704327684756 |
| Item Dimensions | 1.1 x 9.7 x 6.5 inches |
| Item Weight | 3.3 pounds |
| Manufacturer | DELL |
| Maximum Input Voltage | 120 volts_of_alternating_current |
| Mfr Part Number | NH493 |
| Minimum Input Voltage | 110 volts_of_alternating_current |
| Model Name | nh493 |
| Model Number | NH493 |
| Number of Fans | 1 |
| Number of Items | 1 |
| Output Wattage | 305 watts |
| Power Supply Design | Internal |
| System Bus Connector Type | 20+4 Pin |
| Wattage | 305 |

## Product Details

- **Brand:** Dell
- **Compatible Devices:** Personal Computer
- **Connector Type:** SATA
- **Cooling Method:** Air
- **Form Factor:** Internal
- **Item Weight:** 3.3 pounds
- **Item dimensions L x W x H:** 1.1 x 9.7 x 6.5 inches
- **Model Name:** nh493
- **Output Wattage:** 305 watts
- **Wattage:** 305

## Images

![Dell NH493 Power Supply for Dimension E521/E520 Desktop (L305P-01) - Image 1](https://m.media-amazon.com/images/I/81q4tW625KL.jpg)

## Available Options

This product comes in different **Size** options.

## Frequently Bought Together

- Dell NH493 Power Supply for Dimension E521/E520 Desktop (L305P-01)
- Dell Dock WD19S USB-C 180W Power Delivery
- Dell Optical Mouse MS116 (275-BBCB)

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.ec/products/7285903-dell-nh493-power-supply-for-dimension-e521-e520-desktop-l305p](https://www.desertcart.ec/products/7285903-dell-nh493-power-supply-for-dimension-e521-e520-desktop-l305p)

---

*Product available on Desertcart Ecuador*
*Store origin: EC*
*Last updated: 2026-08-29*