Incompatible PCIe Connection for MSI Geforce RTX Ventus 3x 4070 S?

I'm trying to replace my MSI RTX 2070S with an MSI Geforce RTX Ventus 3x 4070 Super. My problem is that the PCIe cables that I used for the 2070S don't seem to fit the 4070S. The connector on the 4070s seem to be smaller than the one on the 2070s. Also, it requires twelve pins, and I don't see a way to use the two 6+2 connections on my existing cable. Do I need a different cable, or worse, a different power supply (I'm using an EVGA SuperNOVA 850 G3 850W)?

This subreddit doesn't seem to allow image posts, so I uploaded a picture of the cables to Imgur, [here](https://imgur.com/a/93bxMYH).

Thanks for your help!