EPS 6pin Cpu connector on old Be Quiet! PSU ( Dark Power Pro 650W) - Power Supplies - Linus Tech Tips

So my friend got this old power supply for cheap but we cant find a cable for the cpu at all. We need something like 6pin to 4+4 (8pin) cpu power connector, to power Ryzen system. Does anyone know if its safe to use adapters from pcie to eps for cpu power, or should i just search for the fitting

PSU VGA Male to PCIe 6+2 Pin Male PCI-E GPU Power Cable for Seasonic Focus Prime ASUS ROG Thor Strix NZXT

Review: be quiet! Dark Power Pro 10 650W PSU - PSU

PSU (be quiet!) not powering motherboard. Manufacturer tests that it's working. Help!? - CPUs, Motherboards, and Memory - Linus Tech Tips

Be Quiet! Dark Power Pro 650W

Pure Power 12 M 650W, ATX 3.0, 80 Plus® Gold, Modular Power Supply, for PCIe 5.0 GPUs and GPUs with 6+2 pin connectors, 12VHPWR Cable Included, Silent 120mm be quiet! Fan - BN503 : Electronics

Be Quiet! Dark Power Pro 10 650W & 850W PSU Review

Pure Power 12 M 650W, ATX 3.0, 80 Plus® Gold, Modular Power Supply, for PCIe 5.0 GPUs and GPUs with 6+2 pin connectors, 12VHPWR Cable Included, Silent 120mm be quiet! Fan - BN503 : Electronics

Be Quiet! Dark Power Pro 650W

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Review: be quiet! Dark Power Pro 10 650W PSU - PSU