--- product_id: 129853577 title: "Silverstone Technology 350 Watt Flex ATX Power Supply with Fixed Cables and 80 Plus Gold with 6Pin PCIe Connector SST-FX350-G-USA, Black（Lead-Free Paint）" brand: "silverstone" price: "£5.53" currency: GBP in_stock: false reviews_count: 12 url: https://www.desertcart.co.uk/products/129853577-silverstone-technology-350-watt-flex-atx-power-supply-with-fixed store_origin: GB region: Great Britain --- # 350W continuous power output 32.9dBA whisper-quiet cooling fan 80 PLUS Gold efficiency rating Silverstone Technology 350 Watt Flex ATX Power Supply with Fixed Cables and 80 Plus Gold with 6Pin PCIe Connector SST-FX350-G-USA, Black（Lead-Free Paint） **Brand:** silverstone **Price:** £5.53 **Availability:** ❌ Out of Stock ## Summary > ⚡ Power your compact build with gold-standard efficiency and whisper-quiet confidence! ## Quick Answers - **What is this?** Silverstone Technology 350 Watt Flex ATX Power Supply with Fixed Cables and 80 Plus Gold with 6Pin PCIe Connector SST-FX350-G-USA, Black（Lead-Free Paint） by silverstone - **How much does it cost?** £5.53 with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/129853577-silverstone-technology-350-watt-flex-atx-power-supply-with-fixed) ## Best For - silverstone enthusiasts ## Why This Product - Trusted silverstone brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Compact Flex ATX Design:** Maximize your SFF build potential with a sleek, space-saving PSU. - • **Single +12V Rail Stability:** Deliver consistent, stable power to your critical components. - • **Reliable 350W Continuous Power:** Power through 24/7 operation at 40℃ without breaking a sweat. - • **80 PLUS Gold Certified Efficiency:** Save energy and reduce heat with premium power efficiency. - • **Sleek Black Finish with Sleeved Cables:** Upgrade your rig’s aesthetics with a professional, clean look. ## Overview The SilverStone SST-FX350-G-USA is a 350W Flex ATX power supply designed for small form factor PCs and embedded systems. Featuring 80 PLUS Gold certification, a single +12V rail, and a quiet cooling fan rated at 32.9dBA, it delivers reliable, energy-efficient power 24/7 at 40℃. Its all-black lead-free paint finish and sleeved cables offer a premium, professional look tailored for enthusiasts and professionals seeking compact, high-performance power solutions. ## Description As a leading brand in small form factor (SFF) case design and power supply miniaturization, Silverstone launched its first Flex ATX power supply, The FX350-G, to further widen the scope of SFF design possibilities and to serve upgrade needs of embedded systems or 1U Rack-Mount server applications. It has features that enthusiasts demand such as all black exterior coating, sleeved cables and support for PCIe 6pin connector. In addition to 80 Plus Gold level efficiency, The FX350-G features powerful single +12V rail and 24/7 40℃ continuous 350W Output Capability to provide reliable and high-performing system operation. Review: Very solid choice - This is a great PSU. It is a bit noisy if you are anal like me and others on this review page. If you'd like to void the warranty and put a quieter fan in this PSU my suggestion after trying the noctua route is to not use noctua (the fans people are recommending on this review page are not rated for this psu in terms of cooling efficiency and in my case the fan wouldn't even turn on unless I hooked it into my fan header on my motherboard even though its 12v in the psu and on the noctua fan. A more proper recommendation and expert advice would be to purchase Delta AFB0412HB 12V DC 0.16A Fan 40mm x 40mm x 15mm from ebay for 6 dollars. Be sure to check the polarity of the 2 pin/wire for this fan to ensure it matches the existing scheme/configuration. I believe its reversed but like I said, check for yourself. But Delta AFB0412HB 12V DC 0.16A Fan 40mm x 40mm x 15mm is a much better option than the Noctua. Don't waste your money on the noctua 40x10mm as not only is it too small and would require duct tape to cover the gap on the outside of the psu after its installed, its not even strong enough to push air in an efficient manner. Anyhow I wish you all good luck in your DIY this psu. For those not that are not ANAL like me, the noise is really not that bad. But I'll let you be the judge as I have tinnitus so I hear ringing in my ears anyway. Review: Works as expected - Little loud, little pricey, and I wish it was modular -- but it's important that I rate this good - because when I bought it 6 months ago, I think it had a 3.5 or 4 star review overall, and that almost wasn't good enough for me to spend the money on it. But I have stress tested it under heat, dog hair, vibration, weird power surges, poor cable management, and wiring mistakes. I'm told replacing the power supply's internal fan will help with noise, so I came back to the listing to check out the specs. Totally recommend this PSU for someone building a tiny ITX computer. Mine is powering a 1660Ti ventus xc (physically modified to fit case), MSI H510i Pro, 16gb ddr4, i5 10400f, m.2 ssd, two sata ssds, and an noctua NH-L9i. Never had trouble! And I am playing the latest games at high settings despite having a 9x13x3 computer. ## Features - "Flex ATX" Small Form Factor power supply - Standard ATX PC connectors (please scroll down for cable length and connector information) - High efficiency with 80 PLUS Gold certification & Active PFC - Single +12V rail design with 350W Continuous power output at 40℃ operating temperature rated for 24/7 operation - Built-in cooling fan rated up to 32.9dBA maximum (slightly louder than a whisper) ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07QGMX5DW | | Best Sellers Rank | #1,507 in Computer Power Supplies | | Brand | SilverStone | | Compatible Devices | PC | | Connector Type Used on Cable | ATX | | Cooling Method | Air | | Customer Reviews | 4.3 4.3 out of 5 stars (321) | | Form Factor | ATX | | Global Trade Identification Number | 00844761017897 | | Item Dimensions | 3.21 x 1.59 x 5.91 inches | | Item Weight | 0.96 Kilograms | | Manufacturer | SilverStone Technology | | Maximum Input Voltage | 264 Volts (AC) | | Mfr Part Number | SST-FX350-G-USA | | Minimum Input Voltage | 90 Volts (AC) | | Model Name | SST-FX350-G-USA | | Model Number | SST-FX350-G-USA | | Number of Fans | 1 | | Output Wattage | 350 | | System Bus Connector Type | 6 Pin | | UPC | 844761017897 | | Upper Temperature Rating | 40 Degrees Celsius | | Warranty Description | 3 Years Parts and Labor | | Wattage | 350 watts | ## Product Details - **Brand:** SilverStone - **Compatible Devices:** PC - **Connector Type:** ATX - **Cooling Method:** Air - **Form Factor:** ATX - **Item Weight:** 0.96 Kilograms - **Item dimensions L x W x H:** 3.21 x 1.59 x 5.91 inches - **Model Name:** SST-FX350-G-USA - **Output Wattage:** 350 - **Wattage:** 350 watts ## Images ![Silverstone Technology 350 Watt Flex ATX Power Supply with Fixed Cables and 80 Plus Gold with 6Pin PCIe Connector SST-FX350-G-USA, Black（Lead-Free Paint） - Image 1](https://m.media-amazon.com/images/I/7149U9NFN5L.jpg) ![Silverstone Technology 350 Watt Flex ATX Power Supply with Fixed Cables and 80 Plus Gold with 6Pin PCIe Connector SST-FX350-G-USA, Black（Lead-Free Paint） - Image 2](https://m.media-amazon.com/images/I/71ZW1GdFb2L.jpg) ![Silverstone Technology 350 Watt Flex ATX Power Supply with Fixed Cables and 80 Plus Gold with 6Pin PCIe Connector SST-FX350-G-USA, Black（Lead-Free Paint） - Image 3](https://m.media-amazon.com/images/I/71tIHAhvr9L.jpg) ![Silverstone Technology 350 Watt Flex ATX Power Supply with Fixed Cables and 80 Plus Gold with 6Pin PCIe Connector SST-FX350-G-USA, Black（Lead-Free Paint） - Image 4](https://m.media-amazon.com/images/I/71+-LlV9Q8L.jpg) ![Silverstone Technology 350 Watt Flex ATX Power Supply with Fixed Cables and 80 Plus Gold with 6Pin PCIe Connector SST-FX350-G-USA, Black（Lead-Free Paint） - Image 5](https://m.media-amazon.com/images/I/71offt4xL4L.jpg) ## Questions & Answers **Q: Does this have a 6 to 8 pin connector for a gpu included?** A: Here are all of the connectors for this power supply: 1 x 24 / 20-Pin motherboard connector（350mm） 1 x 2-Pin connector (300mm)* 1 x 8 / 4-Pin EPS / ATX 12V connector（450mm） 1 x 6-Pin PCIe connector（350mm） 3 x SATA connector（350mm / 150mm / 150mm） 2 x 4-Pin Peripheral connector（350mm / 150mm） 1 x 4-Pin Floppy adapter connector（350mm / 150mm / 150mm） Hope that answers your question. **Q: Is it compatible with msi nightblade mib090?** A: MSI does not share the size nor the form factor of PSU used on their product page so you may need to double check with MSI directly for dimensions of the PSU inside the Nightblade MIB 090 with that of FX350-G, which is a FlexATX power supply. All specifications of the FX350-G are available on its product page: https://www.silverstonetek.com/en/product/info/power-supplies/FX350-G/ **Q: What is the cable length of the 24pin connection to the motherboard?** A: The length of the included 24pin cable is 350mm (13.8 inches) long. For more detailed information on this power supply, please check out its product page on our website: https://www.silverstonetek.com/en/product/info/power-supplies/FX350-G/ **Q: Will this fit in a evga hadron mini itx case?** A: More than likely no, but check the specs of the EVGA chassis manual. I’m sure you’ll find it on the EVGA site. EVGA is a great company that makes a solid product ## Customer Reviews ### ⭐⭐⭐⭐⭐ Very solid choice *by J***E on January 3, 2024* This is a great PSU. It is a bit noisy if you are anal like me and others on this review page. If you'd like to void the warranty and put a quieter fan in this PSU my suggestion after trying the noctua route is to not use noctua (the fans people are recommending on this review page are not rated for this psu in terms of cooling efficiency and in my case the fan wouldn't even turn on unless I hooked it into my fan header on my motherboard even though its 12v in the psu and on the noctua fan. A more proper recommendation and expert advice would be to purchase Delta AFB0412HB 12V DC 0.16A Fan 40mm x 40mm x 15mm from ebay for 6 dollars. Be sure to check the polarity of the 2 pin/wire for this fan to ensure it matches the existing scheme/configuration. I believe its reversed but like I said, check for yourself. But Delta AFB0412HB 12V DC 0.16A Fan 40mm x 40mm x 15mm is a much better option than the Noctua. Don't waste your money on the noctua 40x10mm as not only is it too small and would require duct tape to cover the gap on the outside of the psu after its installed, its not even strong enough to push air in an efficient manner. Anyhow I wish you all good luck in your DIY this psu. For those not that are not ANAL like me, the noise is really not that bad. But I'll let you be the judge as I have tinnitus so I hear ringing in my ears anyway. ### ⭐⭐⭐⭐⭐ Works as expected *by M***S on July 5, 2022* Little loud, little pricey, and I wish it was modular -- but it's important that I rate this good - because when I bought it 6 months ago, I think it had a 3.5 or 4 star review overall, and that almost wasn't good enough for me to spend the money on it. But I have stress tested it under heat, dog hair, vibration, weird power surges, poor cable management, and wiring mistakes. I'm told replacing the power supply's internal fan will help with noise, so I came back to the listing to check out the specs. Totally recommend this PSU for someone building a tiny ITX computer. Mine is powering a 1660Ti ventus xc (physically modified to fit case), MSI H510i Pro, 16gb ddr4, i5 10400f, m.2 ssd, two sata ssds, and an noctua NH-L9i. Never had trouble! And I am playing the latest games at high settings despite having a 9x13x3 computer. ### ⭐⭐⭐⭐ Noisy Fan, Long Cables, but Good Power Supply *by S***T on March 15, 2024* There is a reason they don't show you images showing all the cables viewable and probably would not have very many returns if they set that expectation for the customer. I put this in the A09 itx 3.8L case with 7700X 105W CPU for a productivity machine... There was no way all those cables were going to fit in there so I removed all but the motherboard power cables. Tested everything out before putting in the case and fan was not loud because the system was idle. Several minutes after getting into the case this thing sounded like a server room or vacuum cleaner when it comes to noise level. I was going to replace the fan with Noctua but it was going to be a challenge and found info that expressed that it may not provide enough airflow to properly cool this Power Supply but I will research more to validate. This thing does a great job for my needs and the cables might not need to be modified if you were to go into a larger case but you really can't get much smaller than this A09. ## Frequently Bought Together - SilverStone Technology 350 Watt Flex ATX Power Supply with Fixed Cables and 80 Plus Gold with 6Pin PCIe Connector SST-FX350-G-USA, Black（Lead-Free Paint） - Gigabyte A520I AC (AMD Ryzen AM4/Mini-ITX/Direct 6 Phases Digital PWM with 55A DrMOS/Gaming GbE LAN/Intel WiFi+Bluetooth/NVMe PCIe 3.0 x4 M.2/3 Display Interfaces/Q-Flash Plus/Motherboard) --- ## 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.co.uk/products/129853577-silverstone-technology-350-watt-flex-atx-power-supply-with-fixed](https://www.desertcart.co.uk/products/129853577-silverstone-technology-350-watt-flex-atx-power-supply-with-fixed) --- *Product available on Desertcart Great Britain* *Store origin: GB* *Last updated: 2026-04-23*