Customer Ratings & Reviews

The Thermaltake Smart BM3 850W PSU is a reliable choice for modern systems, featuring 80+ Bronze efficiency for energy savings, PCIe Gen 5 and ATX 3.0 compatibility for next-gen hardware, and semi-modular design for better cable management. Its 850W power capacity ensures stability for high-performance builds.

Works like a charm. Have it installed with my 7800X3D build.

Make sure to get an unopened box... Works with my Asus X99 MB (2014) and NVIDIA GeForce RTX 4070 Ti Super (2024) gpu. If all of the cables were included I would have kept this in my setup but it was missing 2 runs of sata cables and had 1 extra run of molex. The box was apparently an open box as one end of the plastic was missing but I didn't think anything about that.

Power supply has more than enough juice for my mid / upper level build. It's super quiet with great build quality. I picked up on sale and glad I opted for the Semi-Modular design. Way cleaner cable management

Very solid beginner choice for a pc, good price, very silent fan, and comes with everything you need and more, definitely recommend.

It was a great flexibility replacement for the original one for my gaming console computer.

This psu made my first pc build so Much easier and faster. I would recommend this for any body I had it for about a month and I did not have any issues.

I like the price and the product the reason I pick up this power supply is for the PCIE Express 5.0 one cable direct connection to my 4080 Super RTX

Good PSU. Comes with plenty of cable options. Your 24 pin and CPU power is built in.

Have a $75 gift card. I was trying to burn. Don’t really need it. It’s OK.

didn’t even own it for 30 days.. NOT EVEN 30 DAYS. today was the 28th day I owned this product and the power cord got so hot it burnt straight through and started sparking nearly electrocuting me. There’s a burn mark on my carpet, and if I wasn’t there when it happened it could’ve easily burned my house down. Do not buy this product.

Works great and has plenty of cable length. I’ve had no issues with the power unit

Very high quality power supply. I had a cheap one from amazon one that stopped working after 3 months so i bought this thermaltake to replace it and it has worked perfectly. Learn from me and dont try to save a few dollars on such an important componant. Buy it right buy it once.

I'm not a hardware expert but this was very easy to "plug-n-play" if you know what you're doing. It's been running quiet and smoothly for the past few weeks since being installed giving me peace of mind as a regular gamer.

I had a 600 watt power supply computer kept shutting off while gaming upgrade to this one runs perfect CL32 6400mhz ram rx 6750xt and ryzen 9 9950x

Excellent power supply used for an external thunderbolt graphics card in an external enclosure. Supplies 850W for peripheral pci express parts at a reasonable price of 100 dollars. A switch is provided for switching to on and off. And with right jumper configuration I was able to use the power supply standalone independent of a motherboard to control the power supply. Included feature of fan speed adjustment based on temperature or to remain always on if desired.

Great! Package was completely intact, Unit was properly protected with no chunks of empty space, all cables were present, and the Unit runs smoothly!

a really nice 850 watt for a low price, this is a really nice power supply for my pc.

it is so quite and my pc is running so much cooler . it would blow 104 f out the top of my computer now it's so much stronger and only blowing out 89f

No issues installing and everything’s working great so far a couple weeks in