SilverStone Technology SX650-G 650W SFX Form Factor 80 Plus Gold, SST-SX650-G

Solid PSU. Fits nicely into a Watchguard M470 firewall that runs OpnSense.Do note that the fan when it kicks in is a bit louder than desired, and there are several guides on how to change out the fan.Note: Those guides will void warranty, and heed the advice given - don't use a Noctua fan, it doesn't shift enough air.

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.

The PSU draws 3.6W on its own (nothing plugged in, just shorted pins with a paperclip). I cannot hear the fan unless I put my ear next to it. My power meter is showing power factor of 0.97 powering 4 HDDs and 2 fans in a PC, this is better than any of my devices.

For an SX based power supply, this is a great little system. Fully modular, 800W with all of the cables I needed to create my new DIY media center. Cables were all perfect in length - seemed like they were all measured to work with the SilverStone ITX media case I purchased. Super quiet fan. Power delivery all looks good when I check the power output. If you need a SX power supply capable of powering multiple SSD/HDD or other SATA devices, this is a perfect modular system.

I use my desktop Windows PC as my primary music source. I got this to reduce the noise from the PC. Worked like a charm. All I hear now is the low sound of the CPU fan. Also, I thought it would run hot because there is no fan. Not so, It barely gets warm. Good quality item.