<https://www.pricelessaviation.com/product-category/aircraft-gpus/frequency-converters/>
<http://schema.org/name>
"Frequency Converters 400Hz and Combination 400Hz 28V DC"
<https://www.pricelessaviation.com/product/rb3-400-gbe-115-200v-400hz-three-phase-output-at-up-to-3kva/>