--- 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: "312.65 DT" currency: TND in_stock: true reviews_count: 7 category: "S Union" url: https://www.desertcart.tn/products/255890150-s-union-240w-power-supply-for-dell-optiplex-390-790 store_origin: TN region: Tunisia --- # 240W max output power 100-240V AC input range Compatible with 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:** 312.65 DT **Availability:** ✅ In Stock ## Summary > ⚡ Power up your Dell SFF like a pro—because your setup deserves the best. ## 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?** 312.65 DT with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/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—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. ## Overview 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. ## Description Product description 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 | | 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 | ## 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) ## 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 ### ⭐⭐⭐⭐⭐ Aspettative soddisfatte *by L***. on 1 August 2026* Ottimo prodotto ## 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 --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.tn/products/255890150-s-union-240w-power-supply-for-dell-optiplex-390-790](https://www.desertcart.tn/products/255890150-s-union-240w-power-supply-for-dell-optiplex-390-790) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-09-02*