---
product_id: 255890150
title: "S-Union 240W Power Supply 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 LB 240AS 00 H240AS-00 3WN11"
brand: "s-union"
price: "$143"
currency: NZD
in_stock: true
reviews_count: 7
category: "S Union"
url: https://www.desertcart.nz/products/255890150-s-union-240w-power-supply-for-dell-optiplex-390-790
store_origin: NZ
region: New Zealand
---

# 240W max output power Universal 100-240V AC input Compatible with 8 Dell OptiPlex SFF models S-Union 240W Power Supply 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 LB 240AS 00 H240AS-00 3WN11

**Brand:** s-union
**Price:** $143
**Availability:** ✅ In Stock

## Summary

> ⚡ Power your Dell SFF like a pro — no compromises, just pure performance!

## Quick Answers

- **What is this?** S-Union 240W Power Supply 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 LB 240AS 00 H240AS-00 3WN11 by s-union
- **How much does it cost?** $143 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nz](https://www.desertcart.nz/products/255890150-s-union-240w-power-supply-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

- • **Risk-Free Upgrade:** Backed by responsive customer service and a 1-month free return policy for peace of mind.
- • **Compact & Efficient:** Small Form Factor design fits seamlessly into your workspace without bulk or clutter.
- • **Plug & Play Confidence:** Wide 100-240V AC input supports global voltage standards for hassle-free setup anywhere.
- • **Tailored Compatibility:** Specifically engineered for Dell OptiPlex 390, 790, 960, 990, 3010, 7010, and 9010 Small Form Factor PCs.
- • **Power Up with Precision:** 240W output tailored for Dell OptiPlex SFF desktops ensures stable, reliable performance.

## Overview

The S-Union 240W Power Supply is a precision-engineered replacement unit designed exclusively for Dell OptiPlex Small Form Factor desktops (models 390 through 9010). It delivers a reliable 240 watts of power with universal 100-240V AC input compatibility, ensuring stable operation across global power standards. Compact and efficient, it fits perfectly into Dell SFF chassis, backed by a solid customer support policy including a 1-month free return service.

## Description

Product Description: Compatible Model Number: H240AS-00, H240AS-01,H240ES-00, H240ES-01,AC240AS-00, AC240AS-01,L240AS-00, L240AS-01,AC240ES-00,AC240ES-01, D; 2400 ES 00, D240ES-01, DPS-240WB Compatible Part Number:3WN11 709MT 592JG 66VFV CCCVC RV1C4 J50TW 2TXYM Compatible System Models: Dell Optiplex 390 SFF Dell Optiplex 790 SFF Dell Optiplex 960 SFF Dell Optiplex 990 SFF Dell Optiplex 3010 SFF Dell Optiplex 7010 SFF Dell Optiplex 9010 SFF Connectors: P1: 24 pin ATX power supply (7.5cm) P2: 4 pin (18.9 inch) ATX power supply. P3: SATA Power Supply (5.5") P4: Satellite Power (19cm) P5: 2 Pin Slim Line SATA (15.5 cm) Input: 100-240V/4A (50-60Hz) Maximum output power: 240 W. Package includes: One desktop power unit (240 W) Warm Tips: 1. Please make sure your power supply matches one of the part numbers and model number in the product description). 2. Please check the pictures to make sure our product is exactly the same as yours before purchasing. 3. If you have any questions before sale or after sale, please feel free to contact us, we will be happy to help you.

Review: Working as claimed. - Recommended buy!
Review: Good product - The quality of the product was good and worked as expected

## Features

- 【Compatible Model】The power supply only works for Dell OptiPlex 390 790 960 990 3010 7010 9010 Desktop PC (Dell SFF system). AC Input: 100-240V/4A (50-60HZ), DC Output: Maximum Output Power: 240W
- 【NOTE】Power supply does not work for Dell Mt Mini Tower, 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 any quality problems within one month, you can contact us quickly by email and we will provide you with a free return service.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0719DRZMJ |
| Are Batteries Included | No |
| Best Sellers Rank | #46,467 in Computers ( See Top 100 in Computers ) #339 in Computer Power Supplies |
| Brand | S-Union |
| Color | white |
| Customer Reviews | 4.6 4.6 out of 5 stars (869) |
| Date First Available | 28 July 2017 |
| Form Factor | ATX |
| Item Weight | 920 g |
| Item model number | H240AS-00 H240AS-01 AC240AS-00 3WN11 |
| Manufacturer | S-Union |
| Product Dimensions | 25.15 x 9.14 x 11.18 cm; 920 g |
| Series | ATX Power Supply |
| Wattage | 240 watts |

## Product Details

- **Brand:** S-Union
- **Compatible devices:** Dell Optiplex 390 SFF, 790 960 990 3010 7010 9010 SFF
- **Connector type:** ATX
- **Model name:** ATX Power Supply
- **Output wattage:** 240 Watts

## Images

![S-Union 240W Power Supply 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 LB 240AS 00 H240AS-00 3WN11 - Image 1](https://m.media-amazon.com/images/I/61Z0OkJyuCL.jpg)
![S-Union 240W Power Supply 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 LB 240AS 00 H240AS-00 3WN11 - Image 2](https://m.media-amazon.com/images/I/71Q-vsCxDeL.jpg)
![S-Union 240W Power Supply 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 LB 240AS 00 H240AS-00 3WN11 - Image 3](https://m.media-amazon.com/images/I/71RE28Yco1L.jpg)
![S-Union 240W Power Supply 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 LB 240AS 00 H240AS-00 3WN11 - Image 4](https://m.media-amazon.com/images/I/71YLRw-oESL.jpg)
![S-Union 240W Power Supply 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 LB 240AS 00 H240AS-00 3WN11 - 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

### ⭐⭐⭐⭐⭐ Working as claimed.
*by J***J on 4 December 2021*

Recommended buy!

### ⭐⭐⭐⭐⭐ Good product
*by R***H on 21 February 2021*

The quality of the product was good and worked as expected

### ⭐⭐⭐⭐⭐ Review
*by B***. on 30 November 2025*

Come da descrizione. Perfetto. Ho recuperato un vecchio pc

## 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
- SAMSUNG 870 EVO SATA SSD 500GB 2.5” Internal Solid State Drive, Upgrade PC or Laptop Memory and Storage for IT Pros, Creators, Everyday Users, MZ-77E500B/AM, Black

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*Product available on Desertcart New Zealand*
*Store origin: NZ*
*Last updated: 2026-01-24*