SilverStone Technology 450W SFX Form Factor 80 Plus Bronze Power Supply (ST45SF-V3)

I chose this for my compact Silverstone NAS which requires a smaller SFX supply, and it was a good decision. A priority for me is a quiet supply and this one delivers by using a load controlled fan that hasn't spun at all on my system yet. Admittedly, its a new build and I've only done some computationally light work so far but since this system will be used primarily as a HTPC, I don't think it's going to present any electrical of consequence most of the time so I don't expect the fan to spin much. This supply has some nice features as well such as a PCIe cable for video cards (not all SFX supplies include this) plus an ATX adapter plate for use in larger cases. Another small, but nice benefit are the thumb screws in addition the to normal PS mount screws that can be used to secure side panels on most cases. As you might expect in a moderately sized supply like this it doesn't have a ton of molex or SATA connectors but it should be enough for the smaller systems this type of supply would be typically used with.

Power supply fit perfectly in an ITX case. The power supply also comes with an adapter to use it in an ATX case as well. The cooling fan is very quiet - you almost cannot hear it. Works well for my use.

I'll be honest... I really had no intention of buying a SilverStone Technology 300W SFX Form Factor 80 Plus Bronze Power Supply with +12V Single Rail, Active PFC (ST30SF). The thing is that I was putting together my first mini-ITX build since the Via Eden days. While I wanted a small system, I specifically bought a Cooler Master Elite 110 RC-110-KKN2 so I could use a standard size PSU. The problem was that the CPU placement on the motherboard, combined with the height of the Ryzen 5 3400G's OEM Wraith Spire cooler, and the PSU placement in the case resulted in a pretty small gap between the CPU fan and the PSU. Maybe it would have been fine, but I really just didn't like the idea of half of my heatsink not being able to efficiently shed heat. So, I decided to swap out the OEM cooling unit with a SilverStone Technology RL-KR01. That solved my clearance issue, but it was WAY louder than the stock unit, which didn't really work for me. After a little digging, I decided to get the SilverStone Technology ST30SF, and use the included adapter plate. Theoretically, that would let me go back to the stock cooler.I've had proprietary PSUs before, but not very often... stuff like Shuttles, or microATX builds. I was only vaguely aware of the SFX form factor, but was excited when I found out about adapter plates you could use for a regular ATX PSU mount. The ST30SF wasn't the cheapest option, but it was the lowest cost unit that had a brand I trusted and had the adapter bracket (otherwise you'd have to spend like $10 to get one). As you might imagine, the unit is tiny. The bracket centers the unit within the ATX cavity, so it's not necessarily optimized for clearance, but that wasn't an issue for me. As my build is an R5 3400G, 32GB of RAM, and an NVMe drive on an x4 card, it really doesn't need anything bigger than 300W (it doesn't even need that, really). The build quality of the PSU appears to be up to the level I expect from Silverstone, despite being a lower-priced product. The adapter plate is grey/silver, so you may want to hit it with some spray paint, if you care about aesthetics. The 24 and 8-pin mobo power cables are long enough for whatever small case you may be using.In operation, the PSU can be completely silent. There was a sash-type notice on the power supply, warning the user that the PSU fan doesn't always spin, as it's temperature controlled. Even when it's spinning, the fan isn't that loud. It is a little weird for the sound floor to change that much for a running computer, though. In operation, I didn't have any stability problems, and I had solid 3.3, 5, and 12v line voltages.If you know you're going to stay within a 300w power budget, this power supply is a great choice. It's solid and quiet. The only thing that's kind of janky is the color of the adapter plate, which I'm guessing most purchasers won't use, anyway. Recommended.

TL:DR: worked great for years, highly recommendAfter the power supply failed in my old Lenovo Thinkcenter, and the apevia replacement unit failed after 2 hours, I was so happy to find a product that worked. This power supply lasted me through 2 computers, and still worked when I gave it away. The only reason I replaced it was because I decided that having my pasu stick out through the 5 1/4 bays on my second computer looked tacky. Over all, I highly recommend this power supply to anyone who wants something to last a long time and never fail.

Bought this product expecting a powerful, silent power supply unit. I got the power part, but not so much of the silent part. This thing is LOUD under load. If you are a fan of gaming and silence, this power supply is not what you want. Opening up any game application causes it to become so loud that you can hear throughout the hallways. It certainly becomes louder than the maximum 36 dB advertised (Which is supposed to be a bit louder than a whisper) when running a game, and I'm disappointed that I didn't get what was promised considering it's price. Look for some other SFX PSU for your mini itx builds if you value quiet.

Works exactly as a power supply should, nothing fancy and it gets the job done. I have this in a Node 202 paired with a 6600K and GTX 1060 and it's run without any issues. The fan is hardly audible if at all when idle, and while in use I haven't noticed it over system fans. The cables are decently braided and have a decent length that isn't too short or too long for an ITX build.

Great and compact SFX PSU. Use it in my Lian Li mini ITX build which is pretty limited in space. This unit replaced a regular ATX PSU. What a difference! Apart from being compact, the build quality is excellent, all cables braided and (quite important for mini ITX) not too long, so easier to manage inside the case. Worked flawlessly out of the box. I debated whether to get this or the (cheaper) FSP 400W unit. What presuaded me to get the Silverstone was bigger fan and the braided cables. Recommended.

I have this PSU in my HTPC that I built in a Silverstone Tek Aluminum Front Door/Steel Body Micro ATX Media Center/HTPC Case ML04B - Black. The intelligent fan control means that it is 100% silent (as far as I can tell) 100% of the time. I have it powering an i5-4670k on a B85M-D3H board with an SSD and 1 HDD and it does it flawlessly.The PSU comes with a nice set of thumbscrews, an adapter bracket, and sleeved cables. Everything one would expect from Silverstone. The only feature I wish this had was modular cables, but at this price point those aren't terribly common.