adapter compatibility

Hello, i'm thinking of ways add more storage to my PC and was checking PCI-E to M2 SATA adapters like this one My question is how many PCI-E lanes these adapters use, i read that SATA does not use pci-e lanes, read that it uses 1 lane, i got very confused. Do i need to bifurcate my pci-e slot...

I create MP4 files on 32GB uSD cards (formatted FAT32) on one of my PC's inserted into a USB port via an adapter. I have two of these adapters and one recently went bad. 32GB seems to be the maximum size that my TV can mount/read, I assume it has to do with the USB port version being old. There...