---
product_id: 45047395
title: "240W Power Supply Unit Replacement for Dell OptiPlex 390 790 960 990 3010 9010 Small Form Factor System SFF H240AS-00 H240AS-01 H240ES-00 D240ES-00 AC240AS-00 AC240ES-00 L240AS-00 PH3C2"
brand: "s-union"
price: "€ 72.72"
currency: EUR
in_stock: true
reviews_count: 8
category: "S Union"
url: https://www.desertcart.it/products/45047395-240w-power-supply-unit-replacement-for-dell-optiplex-390-790
store_origin: IT
region: Italy
---

# 240W reliable power output Compatible with Dell OptiPlex SFF models 18-month worry-free warranty 240W Power Supply Unit Replacement for Dell OptiPlex 390 790 960 990 3010 9010 Small Form Factor System SFF H240AS-00 H240AS-01 H240ES-00 D240ES-00 AC240AS-00 AC240ES-00 L240AS-00 PH3C2

**Brand:** s-union
**Price:** € 72.72
**Availability:** ✅ In Stock

## Summary

> ⚡ Power your productivity with precision and peace of mind!

## Quick Answers

- **What is this?** 240W Power Supply Unit Replacement for Dell OptiPlex 390 790 960 990 3010 9010 Small Form Factor System SFF H240AS-00 H240AS-01 H240ES-00 D240ES-00 AC240AS-00 AC240ES-00 L240AS-00 PH3C2 by s-union
- **How much does it cost?** € 72.72 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.it](https://www.desertcart.it/products/45047395-240w-power-supply-unit-replacement-for-dell-optiplex-390-790)

## Best For

- s-union enthusiasts

## Why This Product

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

## Key Features

- • **Plug & Play Convenience:** Includes 5 ATX connectors with a short 3-inch P1 cable for easy installation and clean cable management.
- • **Robust 240W Power Delivery:** Delivers consistent 240 watts of power with a 4 Amp current rating, keeping your system stable under demanding workloads.
- • **Compact Small Form Factor Design:** Slim ATX form factor (9.9 x 3.6 x 4.4 inches) fits effortlessly into space-constrained setups without compromising airflow.
- • **Precision Tested Quality Assurance:** Each unit undergoes rigorous testing before shipping, backed by an 18-month warranty for total peace of mind.
- • **Seamless Dell OptiPlex Compatibility:** Specifically engineered for OptiPlex 3010, 390, 790, 960, 990, 9010 & 7010 SFF systems to ensure perfect fit and performance.

## Overview

The S-Union 240W Power Supply Unit is a high-quality, fully tested replacement designed exclusively for Dell OptiPlex Small Form Factor desktops (models 3010, 390, 790, 960, 990, 9010, and 7010). Featuring a compact ATX design, reliable 240W output, and an 18-month warranty, it ensures seamless compatibility and stable power delivery for professional-grade performance.

## Description

Buy S-Union 240W Power Supply Unit Replacement for Dell OptiPlex 390 790 960 990 3010 9010 Small Form Factor System SFF H240AS-00 H240AS-01 H240ES-00 D240ES-00 AC240AS-00 AC240ES-00 L240AS-00 PH3C2: Internal Power Supplies - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: Perfect Replacement for OEM - Works perfect for the OEM replacement. Good quality and craftmanship.
Review: Works great! - Dell Optiplex 7010 power supply burned up. This replaced it, and works great.

## Features

- ✅【Compatible Model 】Compatible with Dell OptiPlex 7010 3010 9010 390 790 960 990 SFF Small Form Factor Systems Only（Note:This Power Supply does not work for Dell Mt Mini Tower Systems,DT Desktop System, USFF Ultra Small Form Factor Systems)
- ✅【Compatible Part Number】This dell optiplex 790 power supply is Compatible with 3WN11 709MT 592JG 66VFV CCCVC RV1C4 J50TW 2TXYM
- ✅【Compatible Model Number】This optiplex 7010 power supply is compatiable with H240AS-00, H240AS-01,H240ES-00, H240ES-01,AC240AS-00, AC240AS-01,L240AS-00, L240AS-01,AC240ES-00,AC240ES-01, D240ES-00, D240ES-01, DPS-240WB
- ✅ 【Quality】 All Power Supply Are Tested Before Shipping. And we supply 18 months worry-free warranty. For any reasons you're not completely satisfied, you can ask for a replacement or full_ refund..
- ✅【What You Get】A Desktop Power Supply Unit (240W). Note: P1 Cable is about 3'' long, not 12.5''

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0719DRZMJ |
| Best Sellers Rank | #189 in Computer Power Supplies |
| Brand | S-Union |
| Compatible Devices | Personal Computer |
| Connector Quantity | 5 |
| Connector Type | ATX |
| Connector Type Used on Cable | ATX |
| Cooling Method | Air |
| Current Rating | 4 Amps |
| Customer Reviews | 4.6 out of 5 stars 918 Reviews |
| Form Factor | ATX |
| Item Dimensions | 9.9 x 3.6 x 4.4 inches |
| Manufacturer | S-Union |
| Maximum Input Voltage | 240 Volts (AC) |
| Mfr Part Number | H240ES-00 D240ES-00 |
| Minimum Input Voltage | 100 Volts (AC) |
| Model Name | ATX Power Supply |
| Model Number | H240AS-00 H240AS-01 AC240AS-00 3WN11 |
| Number of Fans | 1 |
| Output Wattage | 240 Watts |
| Power Supply Design | Full Modular |
| System Bus Connector Type | 2 Pin |
| UPC | 840637155342 |
| Unit Count | 1.0 Count |
| Warranty Description | 18 months worry-free warranty |
| Wattage | 240 watts |

## Product Details

- **Brand:** S-Union
- **Compatible Devices:** Personal Computer
- **Connector Type:** ATX
- **Cooling Method:** Air
- **Form Factor:** ATX
- **Item dimensions L x W x H:** 9.9 x 3.6 x 4.4 inches
- **Model Name:** ATX Power Supply
- **Output Wattage:** 240 Watts
- **Power Supply Design:** Full Modular
- **Wattage:** 240 watts

## Images

![240W Power Supply Unit Replacement for Dell OptiPlex 390 790 960 990 3010 9010 Small Form Factor System SFF H240AS-00 H240AS-01 H240ES-00 D240ES-00 AC240AS-00 AC240ES-00 L240AS-00 PH3C2 - Image 1](https://m.media-amazon.com/images/I/61Z0OkJyuCL.jpg)

## Questions & Answers

**Q: What is the warranty on this power supply?**
A: eParts Technology Corp. Provides a 60 Day Warranty

**Q: What are the actual dimensions?  Because the 3.5 " thing amazon states seems too big.  I'm guessing that might be the packaging.**
A: The item dimensions is 9.5 x 2.5 x 3 inches. Thank you.

**Q: Is there a fan inside this power supply unit?**
A: Yes it does.  It has an intake fan that faces front when it is installed.  The PS in the Optiplex 390 died.  This unit went in and the machine has worked perfectly every since.

**Q: Where is this manufactured?**
A: Made in China.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Perfect Replacement for OEM
*by J***L on March 23, 2026*

Works perfect for the OEM replacement. Good quality and craftmanship.

### ⭐⭐⭐⭐⭐ Works great!
*by B***T on March 25, 2026*

Dell Optiplex 7010 power supply burned up. This replaced it, and works great.

### ⭐⭐⭐⭐⭐ Perfect!
*by A***A on October 22, 2025*

I used this to replace the power supply in my ancient Dell Optiplex 990/SFF desktop. It was easy to install, it works, and the price was right!

## Frequently Bought Together

- S-Union 240W Power Supply Unit Replacement for Dell OptiPlex 390 790 960 990 3010 9010 Small Form Factor System SFF H240AS-00 H240AS-01 H240ES-00 D240ES-00 AC240AS-00 AC240ES-00 L240AS-00 PH3C2
- POINWER H240AS-01 H240AS-00 L240AS-00 2TXYM 3WN11 240W Optiplex 7010 SFF Power Supply for Dell Optiplex 390 790 960 990 3010 9010 Small Form Factor Systems CCCVC 3RK5T ac240as-00 D240ES-00
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**Shop now:** [https://www.desertcart.it/products/45047395-240w-power-supply-unit-replacement-for-dell-optiplex-390-790](https://www.desertcart.it/products/45047395-240w-power-supply-unit-replacement-for-dell-optiplex-390-790)

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*Product available on Desertcart Italy*
*Store origin: IT*
*Last updated: 2026-05-08*