---
product_id: 45047395
title: "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"
brand: "s-union"
price: "€ 74.42"
currency: EUR
in_stock: true
reviews_count: 13
category: "S Union"
url: https://www.desertcart.nl/products/45047395-s-union-240w-power-supply-unit-replacement-for-dell-optiplex
store_origin: NL
region: Netherlands
---

# 240W reliable power output Compatible with Dell OptiPlex SFF models Plug & play easy installation 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

**Brand:** s-union
**Price:** € 74.42
**Availability:** ✅ In Stock

## Summary

> ⚡ Power your Dell OptiPlex like a pro — reliable, ready, and right on time!

## Quick Answers

- **What is this?** 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 by s-union
- **How much does it cost?** € 74.42 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nl](https://www.desertcart.nl/products/45047395-s-union-240w-power-supply-unit-replacement-for-dell-optiplex)

## 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

- • **Built to Last:** Backed by an 18-month worry-free warranty and rigorous pre-shipment testing for peace of mind.
- • **Plug & Play Simplicity:** Hassle-free installation with tested, ready-to-go power supply—get your system running in minutes.
- • **Seamless Compatibility:** Specifically designed for Dell OptiPlex 3010, 390, 790, 9010, 960, 990, and 7010 Small Form Factor systems.
- • **Power Up with Confidence:** 240W output engineered for stable, efficient performance in Dell OptiPlex SFF desktops.
- • **Value That Powers Your Productivity:** Cost-effective replacement that saves you money without compromising on quality or reliability.

## Overview

The S-Union 240W Power Supply Unit is a precision-engineered replacement designed exclusively for Dell OptiPlex Small Form Factor desktops including models 3010, 390, 790, 9010, 960, 990, and 7010. Delivering stable 240W power, it ensures seamless compatibility and easy installation. Each unit undergoes thorough testing and comes with an 18-month warranty, making it a dependable, cost-effective upgrade to keep your system running smoothly.

## 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: Very easy to install and works great! - Perfect! I had bought a cheaper refurbished desktop computer that runs a laser in our garage. The power supply went out and this was SUPER easy to replace and get running again! Saved me a ton of money, and its still running perfectly even after a few Texas summers in my garage. Great value!
Review: Perfect! - 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!

## 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 | #244 in Computer Power Supplies |
| Brand | S-Union |
| Color | white |
| Customer Reviews | 4.6 4.6 out of 5 stars (907) |
| Date First Available | May 12, 2017 |
| Is Discontinued By Manufacturer | No |
| Item Dimensions LxWxH | 9.9 x 3.6 x 4.4 inches |
| Item Weight | 2.02 pounds |
| Item model number | H240AS-00 H240AS-01 AC240AS-00 3WN11 |
| Manufacturer | S-Union |
| Product Dimensions | 9.9 x 3.6 x 4.4 inches |
| Series | ATX Power Supply |

## 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

![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 - Image 1](https://m.media-amazon.com/images/I/61Z0OkJyuCL.jpg)
![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 - Image 2](https://m.media-amazon.com/images/I/71RE28Yco1L.jpg)
![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 - Image 3](https://m.media-amazon.com/images/I/71k1oDov3JL.jpg)
![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 - Image 4](https://m.media-amazon.com/images/I/817wAkfdmOL.jpg)
![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 - Image 5](https://m.media-amazon.com/images/I/71d+0YKhHXL.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

### ⭐⭐⭐⭐⭐ Very easy to install and works great!
*by A***R on January 9, 2026*

Perfect! I had bought a cheaper refurbished desktop computer that runs a laser in our garage. The power supply went out and this was SUPER easy to replace and get running again! Saved me a ton of money, and its still running perfectly even after a few Texas summers in my garage. Great value!

### ⭐⭐⭐⭐⭐ 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!

### ⭐⭐⭐⭐⭐ Very Solid Power Supply
*by M***G on June 10, 2025*

This was purchased over a year ago and installed as a replacement for the original supply in one of my computers. Easy installation, good quality connectors although the wires are a bit on the short side. Works flawlessly. I would buy it again if I ever needed a replacement power supply of this rating and type.

## 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.nl/products/45047395-s-union-240w-power-supply-unit-replacement-for-dell-optiplex](https://www.desertcart.nl/products/45047395-s-union-240w-power-supply-unit-replacement-for-dell-optiplex)

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*Product available on Desertcart Netherlands*
*Store origin: NL*
*Last updated: 2026-02-25*