What is the warranty on this power supply?

eParts Technology Corp. Provides a 60 Day Warranty

What are the actual dimensions? Because the 3.5 " thing amazon states seems too big. I'm guessing that might be the packaging.

The item dimensions is 9.5 x 2.5 x 3 inches. Thank you.

Is there a fan inside this power supply unit?

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.

Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

Help Track order

Account Cart

Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

Help Track order

Account Cart

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

Product ID: 255890150

Details

Brand
S-Union
Compatible devices
Dell Optiplex
Connector type
ATX
Model name
ATX Power
Output wattage
240 Watts

⚡240W max output power

🔌100-240V AC input range

🖥️Compatible with Dell Optiplex SFF models

312.47 DT

Duties & taxes included

In stock

Sold byAmazon TunisiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Tunisia.

Secure transaction

Description

⚡ Power up your Dell SFF like a pro—because your setup deserves the best.

RISK FREE UPGRADE - Backed by responsive customer service and a 1-month free return policy—upgrade your power supply with zero hesitation.
PLUG PLAY CONFIDENCE - Standard ATX connectors and air cooling mean easy installation and quiet operation, keeping your setup sleek and efficient.
SEAMLESS COMPATIBILITY - Specifically engineered for Dell Optiplex 390, 790, 960, 990, 3010, 7010, and 9010 Small Form Factor PCs—no guesswork needed.
POWER YOUR PRODUCTIVITY - Reliable 240W output tailored for Dell Optiplex SFF desktops ensures your workflow never stalls.
UNIVERSAL VOLTAGE FLEXIBILITY - Supports 100-240V AC input, perfect for professionals on the move or in diverse office environments.

The S-Union 240W Power Supply is a precision-engineered replacement designed exclusively for Dell Optiplex Small Form Factor desktops (models 390 through 9010). Delivering stable 240W output with universal 100-240V AC input compatibility, it features standard ATX connectors and quiet air cooling. Trusted by over 900 users with a 4.6-star rating, it offers hassle-free installation and reliable performance backed by a one-month free return policy.

Specifications

ASIN	B0719DRZMJ
Best Sellers Rank	#63,746 in Computers ( See Top 100 in Computers ) #459 in Computer Power Supplies
Brand	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 Type Used on Cable	ATX
Connector type	ATX
Cooling Method	Air
Current Rating	4 Amps
Customer Reviews	4.6 out of 5 stars 908 Reviews
Form Factor	ATX
Form factor	ATX
Item Dimensions	25.1 x 9.1 x 11.2 centimeters
Item Weight	0.6 Pounds
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
Model name	ATX Power Supply
Number of Fans	1
Number of Items	1
Number of Packs	1
Output Wattage	240 Watts
Output wattage	240 Watts
Power Supply Design	Full Modular
System Bus Connector Type	24 Pin
UPC	840637155342
Unit Count	1.0 Count
Wattage	240 watts

Reviews

J**J

Working as claimed.

Recommended buy!

4.12.2021

R**H

Good product

The quality of the product was good and worked as expected

21.02.2021

L**.

Aspettative soddisfatte

Ottimo prodotto

1.08.2026

A**O

Power Supply

Esta cara, pero no tengo tiempo de buscar en los locales de computo.

19.01.2026

M**S

Conforme à mes attentes

28.03.2026

C**N

Rapidisimo

Genial

10.08.2025

P**S

Empfehlenswert

Wie Original. Perfekt!

22.11.2025

Common Questions

Are the products genuine and authentic?+

Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

How long does delivery take and is it reliable?+

Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

What is Desertcart? Is it safe to order from?+

Desertcart is an international e-commerce platform operating since 2014. We securely process thousands of orders globally each day. Every product goes through our quality verification process before delivery, and we provide end-to-end order tracking, 24/7 customer support, and a comprehensive returns policy to ensure a safe shopping experience.

How is product pricing calculated?+

Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Neha S.

Excellent communication throughout the order process. Product is perfect.

2 weeks ago

Anita G.

Good experience, but the tracking updates could be better.

2 months ago

View all Trustpilot reviews

312.47 DT

Duties & taxes included

In stock

Sold byAmazon TunisiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Tunisia.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Ali H.

Fast shipping and excellent packaging. The Leatherman tool feels very premium and sturdy.

1 day ago

Suresh K.

Very impressed with the quality and fast delivery. Will shop here again.

4 days ago

View all Trustpilot reviews