by the way I just found out these adapters exist:

https://images-na.ssl-images-amazon.com/images/I/81kR2H41fFL._SY355_.jpg

using 2x sata to molex adapterts like this one to power my risers is a much safer option than using that regular 1 sata to molex that comes with it, right? Funny thing I didn't find anyone mentioning these 2x sata adapters on riser adapters discussion threads, and they seem to be really useful