The reason why those two new PSUs only have one 8-pin connector is because they both sport two 12V-2x6 sockets instead. The company does offer PSUs with up to three 8-pin and one 16-pin power slots.

Leaked MSI RTX 5060 Ti graphics card pictures show that Nvidia may allow the use of 8-pin power connectors alongside a PCIe 5 ...

While earlier issues with connector and wire melting have been associated with GPUs using the new 12V-2×6 power connector, ...