The vertical bracket doesn't include a 12VHPWR cable, and the kit you linked also doesn't. You would want this kit: https://www.amazon.com/CableMod-ModMesh-Sleeved-12VHPWR-Corsair/dp/B0BJ29N8B5?ref_=ast_sto_dp&th=1
You could get a vertical bracket from us as well, but if you're getting the vertical bracket anyways, you should get the 4.0 option. :)
https://usstore.cablemod.com/product-category/accessories/vertical-pci-e-brackets/
Also, it makes sense to use both if you don't have space between the card and the side of your case for a proper cable route, but if you have enough space, you don't need to do that.
This link would be the correct kit for your 4070 Ti: https://www.amazon.com/CableMod-ModMesh-Sleeved-12VHPWR-Corsair/dp/B0BJ29N8B5?ref_=ast_sto_dp&th=1
If you just want the cable itself, this here: https://www.amazon.com/CableMod-ModMesh-Sleeved-12VHPWR-Corsair/dp/B0BJ24QQGP?ref_=ast_sto_dp&th=1
The 4.0 vertical bracket we don't currently have on Amazon though, so you would have to order from our US store here: https://usstore.cablemod.com/product-category/accessories/vertical-pci-e-brackets/