⚡ Power your Dell SFF like a pro—compact, reliable, unstoppable.
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.
| 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 |
B**9
Easy Fit, Works great!
Perfect! Fairly Straightforward to replace the failed unit, and pop this one straight in!
A**R
Good biy
Direct replacement for dell power supply. Fit easily delivered quickly
T**B
Fixing screw holes too small
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.
P**T
Works fine
It makes my computer power on, hasn’t failed yet and is cheap. No problems so far.
J**.
Got us out of a mess
Our computer turned itself off on Wednesday, diagnosed it to be a faulty power supply, and ordered this on the afternoon to arrive by 1pm next day. It arrived at 11am, 2 hours early and by 1pm the computer was working again. Can't faulty the item or service.
C**E
Awful piece of equipment
This item was purchased and placed into a machine which it promptly BROKE. I am now trying to seek the cost of the £180 machine from amazon who have advised me that I need to go directly to the seller to claim it. So I will be doing just that. DO NOT BUY THIS ITEM
L**.
Working great for now
Previous PSU popped and smoked, so got his as a replacement. Arrived very quickly and well packaged! Working perfectly so far, being used a few hours each day. Will update this if anything goes wrong with it.
C**O
This item is spot on and saved me buying a new computer
Fitted straight into my Dell desktop and easy to reattach the cables.
Trustpilot
1 month ago
2 weeks ago
