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Looking for something like "fainwan-600w-boost-converter-dc-to-dc-step-up-transformer-module-power-supply-driver-max-10a-for-10v-60v-to-12-60v-output"? Here are the closest matches:
Apoesar 600W High Power DC to DC Boost Converter - 12-60V to 12-80V Boost Module Board Step-up Transformer
Valefod XL6009 DC to DC Boost Converter 3.0-30V to 5-35V Step-up Transformer Power Module, Pack of 10
Valefod XL6009 DC to DC Boost Converter 3.0-30V to 5-35V Step-up Transformer Power Module, Pack of 6