Help 5070 ti

Good afternoon evening or morning everyone.

I just got my 5070 ti inspire from msi. I use as a power supply this thing i got years ago Seasonic Prime Ultra Platinum 1300W (80+Platinum, ATX 12V) Power Supply for Computer/Gaming PC's, 6X PCIe, Cable Management https://amzn.eu/d/4RrYWrq.

Little question (i upgrade from a rtx 2060 to this) and didn't saw that there is new connection Msi deliver an adaptater but they recommend to not plug it in daisy-chain, thing is the only pcie i got is that one. How could i manage to do it ? Do i have to buy cables ?