Are 4 pin molex to sata power adapters in your mining rig safe? I did some extensive testing and research to answer the question for you. GPU mining safety tips.
sources
https://en.wikipedia.org/wiki/UL_94
https://www.molex.com/webdocs/datasheets/pdf/en-us/0887511310_CABLE_ASSEMBLIES.pdf
https://www.rapidtables.com/calc/electric/Amp_to_Watt_Calculator.html
https://videocardz.com/61667/what-reviewers-say-about-radeon-rx-480-exceeding-pci-express-power-specifications
PCIE Risers on Amazon: https://amzn.to/2J1542c
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