Monoprice 6inch SATA 15pin Female to Molex 4pin Male Power Adapter
Product “Monoprice 6-inch SATA 15-pin Female to Molex 4-pin Male Power Adapter” looks like standard quality. Haven’t opened product packaging, because I found my replaceable power supply cable assemblies with SATA connector.
Seems to be fairly good quality, is injection molded a big bonus. Far less of an issue of the dreaded "use molex to sata lose all your data" due to the crimping failing and causing a short or in worst case fire.