I'm wondering if I should use the included Corsair 2x8-Pin to 12V-2x6 connector from my HX1200i, or stick with NVIDIA's 4x8-Pin to 12V-2x6 connector. I've read that using the 2x8-Pin might create a risk since Corsair has some additional safety features, but wouldn't using four cables instead of two distribute the load better? Is there a chance Corsair's option could fail more due to this lower load distribution? Appreciate any advice!
6 Answers
From what I gather, the 8-pin PCIE connector typically handles about 150W, but you might want to double-check Corsair's specs. If you're nearing that 600W load, using the 4x8 connection is the safer bet to avoid overloading. However, always secure your connections!
Best option is to just use the one that comes with the GPU. It's made for it, so you can't really go wrong. Don’t complicate things unnecessarily!
When it comes to the 5090, safety should be your priority. Direct connections are often better for avoiding risks. Users have pointed out that the unit can be a fire hazard, so proceed carefully. It’s definitely something to be cautious about!
Just a heads-up, the HX1200i from 2025 might not support direct connections as you think, so double-check that!
I'd suggest sticking with the cable that comes with your PSU. It's designed to work seamlessly with it, ensuring stable performance without worrying about compatibility issues. Plus, it's what the manufacturer recommends!
If your current PSU doesn’t support 3.1 standards, consider investing in a new one with direct cables. It could save you a lot of trouble down the road!
Honestly, there's a lot of mixed feedback on this topic. While Corsair seems reliable, using their adapter means introducing more potential failure points. Less is often more in terms of connections. But Corsair has a solid reputation, so if they say it can handle 600W, it should be fine for your setup!

Corsair actually rates those 8-pin connectors for 300W, not 150W. So, be sure to check that out on their website!