---
product_id: 88419042
title: "S-Union 240W Power Supply Unit PSU for DELL Optiplex 390 790 960 990 3010 7010 9010,Only for Small Form Factor SFF H240ES-00 D240ES-00 AC240AS-00 AC240ES-00 DPS-240WB L240AS-00 H240AS-00 3WN11"
brand: "s-union"
price: "48125 Ft"
currency: HUF
in_stock: true
reviews_count: 8
category: "S Union"
url: https://www.desertcart.hu/products/88419042-s-union-240w-power-supply-unit-psu-for-dell-optiplex
store_origin: HU
region: Hungary
---

# 240W max output power 100-240V AC input range Air cooling with quiet fan S-Union 240W Power Supply Unit PSU for DELL Optiplex 390 790 960 990 3010 7010 9010,Only for Small Form Factor SFF H240ES-00 D240ES-00 AC240AS-00 AC240ES-00 DPS-240WB L240AS-00 H240AS-00 3WN11

**Brand:** s-union
**Price:** 48125 Ft
**Availability:** ✅ In Stock

## Summary

> ⚡ Power your Dell SFF like a pro—compact, reliable, unstoppable.

## Quick Answers

- **What is this?** S-Union 240W Power Supply Unit PSU for DELL Optiplex 390 790 960 990 3010 7010 9010,Only for Small Form Factor SFF H240ES-00 D240ES-00 AC240AS-00 AC240ES-00 DPS-240WB L240AS-00 H240AS-00 3WN11 by s-union
- **How much does it cost?** 48125 Ft with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hu](https://www.desertcart.hu/products/88419042-s-union-240w-power-supply-unit-psu-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

- • **Peace of Mind Warranty:** Backed by an 18-month worry-free warranty and responsive customer service, so you’re covered if anything goes sideways.
- • **Plug & Play Installation:** Straightforward replacement design means you can swap your PSU hassle-free and get back to work faster—no tech headaches.
- • **Robust 240W Power Delivery:** Reliable 240-watt output ensures your system runs smoothly without hiccups, powering your productivity with confidence.
- • **Wide Voltage Range Support:** Supports 100-240V AC input, making it versatile for global use and stable performance under varying power conditions.
- • **Seamless Dell SFF Compatibility:** Specifically engineered for Dell Optiplex 390, 790, 960, 990, 3010, 7010, 9010 Small Form Factor desktops—no guesswork, just perfect fit.

## Overview

The S-Union 240W Power Supply Unit is a precision-engineered replacement PSU designed exclusively for Dell Optiplex Small Form Factor desktops (models 390 through 9010). Delivering a stable 240W output with a broad 100-240V AC input range, it ensures reliable performance and easy installation. Featuring air cooling and a compact ATX form factor, it’s the perfect upgrade or replacement to keep your Dell SFF running at peak efficiency, backed by an 18-month warranty for total confidence.

## Description

Buy

Review: Easy Fit, Works great! - Perfect! Fairly Straightforward to replace the failed unit, and pop this one straight in!
Review: Good biy - Direct replacement for dell power supply. Fit easily delivered quickly

## Features

- 【Compatible Model】The power supply is only work for Dell OptiPlex 390 790 960 990 3010 7010 9010 Desktop (Dell SFF System) . AC Input: 100-240V/4A (50-60HZ), DC Output:Max Output Power: 240W.
- 【NOTA】The power supply is not work for Dell Mt Mini Tower Systems, DT Desktop System, USFF Ultra Small Form Factor Systems
- 【Compatible Part Number】3WN11 709MT 592JG 66VFV CCCVC RV1C4 J50TW 2TXYM
- 【Compatible Model Number】H240AS-00, AC240AS-00, L240AS-00, AC240ES-00, H240AS-00, H240ES-00, D240ES-00, DPS-240WB
- 【Quality Service】If the product has quality problems within one month, you can contact us promptly by email and we will provide you with free return service

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0719DRZMJ |
| Best Sellers Rank | 33,086 in Computers & Accessories ( See Top 100 in Computers & Accessories ) 324 in Power Supplies |
| Brand | S-Union |
| Brand Name | S-Union |
| Compatible Devices | Dell Optiplex 390 SFF, 790 960 990 3010 7010 9010 SFF |
| Compatible devices | Dell Optiplex 390 SFF, 790 960 990 3010 7010 9010 SFF |
| Connector Quantity | 5 |
| Connector Types | ATX |
| Connector type | ATX |
| Cooling Method | Air |
| Country of Origin | China |
| Current Rating | 4 Amps |
| Customer Reviews | 4.2 out of 5 stars 873 Reviews |
| Form Factor | ATX |
| Form factor | ATX |
| Item Dimensions | 25.1 x 9.1 x 11.2 centimetres |
| Item height | 4.4 inches |
| Manufacturer | S-Union |
| Maximum Input Voltage | 240 Volts (AC) |
| Minimum Input Voltage | 100 Volts (AC) |
| Model Name | ATX Power Supply |
| Model name | ATX Power Supply |
| Number of Fans | 1 |
| Output Wattage | 240 Watts |
| Output wattage | 240 Watts |
| Power Supply Design | Full Modular |
| Product Warranty | 18 months worry-free warranty |
| System Bus Connector Type | ATX |
| UPC | 840637155342 |
| Wattage | 240 watts |

## Product Details

- **Model name:** ATX Power Supply
- **Brand:** S-Union
- **Compatible devices:** Dell Optiplex 390 SFF, 790 960 990 3010 7010 9010 SFF
- **Connector type:** ATX
- **Output wattage:** 240 Watts
- **Form factor:** ATX
- **Wattage:** 240 watts
- **Cooling method:** Air
- **Item dimensions L x W x H:** 25.1 x 9.1 x 11.2 centimetres
- **Power supply design:** Full Modular

## Images

![S-Union 240W Power Supply Unit PSU for DELL Optiplex 390 790 960 990 3010 7010 9010,Only for Small Form Factor SFF H240ES-00 D240ES-00 AC240AS-00 AC240ES-00 DPS-240WB L240AS-00 H240AS-00 3WN11 - 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

### ⭐⭐⭐⭐⭐ Easy Fit, Works great!
*by B***9 on 14 April 2025*

Perfect! Fairly Straightforward to replace the failed unit, and pop this one straight in!

### ⭐⭐⭐⭐⭐ Good biy
*by A***R on 20 July 2025*

Direct replacement for dell power supply. Fit easily delivered quickly

### ⭐⭐⭐⭐ Fixing screw holes too small
*by T***B on 29 June 2020*

Bought this PSU to replace the one in my SFF Optiplex 9010 which had failed. Physically it fitted OK into the space but I couldn't use the 3 fixing screws from the old (Dell) PSU to secure it because the threaded holes in the new PSU were a smaller thread. Until I can find some smaller screws I've had to leave it unsecured in the PC case (although it clips into place which holds it pretty well). Otherwise everything OK & my PC is operational again.

## 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.hu/products/88419042-s-union-240w-power-supply-unit-psu-for-dell-optiplex](https://www.desertcart.hu/products/88419042-s-union-240w-power-supply-unit-psu-for-dell-optiplex)

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*Product available on Desertcart Hungary*
*Store origin: HU*
*Last updated: 2026-01-22*