I'm upgrading the power supply in my mini-ITX system because the current unit isn't sufficient for my new Gigabyte GeForce RTX 5070 WINDFORCE OC 12GB. The build uses a Ryzen 7 5800X3D and an Asus ROG Strix B550-I Gaming motherboard. I'd like a reliable 850W unit, preferably from Corsair or Seasonic, but I'm unsure which specific model will fit an ITX case and provide the right connectors.
1 Answer
For a true SFX form factor, the Corsair SF850 is the obvious model to look at. It’s designed for compact builds and has plenty of headroom for the 5800X3D and RTX 5070. If your case supports the slightly longer SFX-L format, the Corsair SF850L or Seasonic Focus SGX-850 are also worth considering. Just verify the case’s PSU clearance and GPU power cable requirements before buying.
Thanks, that’s exactly what I was looking for. I couldn’t tell which specific Corsair model was intended for an ITX build, so I’ll check whether my case supports SFX-L before deciding.