--- 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: "76422CFA" currency: XOF in_stock: true reviews_count: 7 category: "S Union" url: https://www.desertcart.sn/products/255890150-s-union-240w-power-supply-for-dell-optiplex-390-790 store_origin: SN region: Senegal --- # 240W max output power Universal 100-240V AC input Compatible with 7 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:** 76422CFA **Availability:** ✅ In Stock ## Summary > ⚡ Power your productivity with precision-engineered Dell SFF energy! ## 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?** 76422CFA with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.sn](https://www.desertcart.sn/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 Purchase:** Backed by a 1-month free return policy for quality assurance and peace of mind. - • **Tailored for Dell SFF:** Specifically engineered for Dell OptiPlex 390, 790, 960, 990, 3010, 7010, and 9010 Small Form Factor desktops. - • **Power-packed 240W Output:** Delivers reliable energy to keep your Dell OptiPlex running smoothly without compromise. - • **Wide Voltage Compatibility:** Supports 100-240V AC input for seamless use worldwide—no adapter worries. - • **Compact & Efficient Cooling:** Air-cooled with a single fan to maintain optimal temperature in tight spaces. ## Overview The S-Union 240W Power Supply is a compact, high-efficiency ATX unit designed exclusively for Dell OptiPlex Small Form Factor desktops (models 390 through 9010). It supports a universal AC input voltage range (100-240V) and delivers stable 240W output with air cooling, ensuring reliable performance in space-constrained setups. With compatibility for multiple Dell part numbers and a customer-friendly return policy, it’s the go-to upgrade for professionals seeking dependable power without downtime. ## 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 | #62,181 in Computers ( See Top 100 in Computers ) #452 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 903 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 | | 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) ![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/81kT5vnKCjL.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/81s-AMRg4-L.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/71d+0YKhHXL.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/81jp7Frp4FL.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 ### ⭐⭐⭐⭐⭐ 5 STELLE *by P***R on 14 April 2026* Ottimo prodotto da consigliare. ## 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.sn/products/255890150-s-union-240w-power-supply-for-dell-optiplex-390-790](https://www.desertcart.sn/products/255890150-s-union-240w-power-supply-for-dell-optiplex-390-790) --- *Product available on Desertcart Senegal* *Store origin: SN* *Last updated: 2026-07-25*