I don't remember talking about the USB except that I had a USB card.
Exactly. So are you using a PCIe USB card along with your capture card or not? If so, just make sure your board has 3 or more PCIe slots and that you can use them all with your GPU in the top/primary graphics slot. Again make sure you NEED to use that card for additional USB ports as many boards have enough on the rear IO and front panel already.
Maybe I need to do some reseach
Please do! With much respect, you're blurting things out that you want, but it makes little sense compared to what you say you need (hence our questions). So yeah, take some time to understand the differences. The i3-10100 has the same core/thread count but is a lot faster since it's a lot newer. The i5-10400 has 6 cores and 12 threads, MORE than your current CPU already and is a lot faster since it's a lot newer.
I just always get the best to be safe.
In 2018 when you say you bought your PC, the hardware was already generations old and the CPU is mid-range while the motherboard would be considered budget. The 10th gen stuff we're suggesting came out in 2019. Nothing we're listing is the best, or close to it. I'm not trying to be a jerk here but simply trying to set and manage expectations.
It's like going to the car meet saying you have the best mustang, but it's a generations GT, not a Shelby Cobra (hopefully you're a car guy, lol).
If I was in your shoes from what you've said, I'd go i5-10400. It's more than you need and isn't as outlandish in pricing as the i7.
