I mean how safe is it to buy B-stock power supplies from EVGA, what exactly does B-stock mean?
If you look at the website there is a big yellow text saying exactly what B-Stock means.
"B-Stock Products are units which may have small scratches, small dents, or noticeable use. B-Stock products are Factory Recertified to meet the performance and reliability of a new product of the same model. B-Stock products do not come with any optional accessories and only include the accessories required to use the product as listed below."
So anything from 1 small scratche to the PSU already being used. If you ask me you don't know what you're buying. I would only buy the good to exceptional model from that B-stock webpage.
What is worst is that all these B-stock PSU come with a 1 year warranty only. Good PSU's come with 5 to 7 to 10+ years warranty brand new.