These units are brand new in box and have not been tested. To my knowledge, these are CWT 750W Gold SFX units that are rebranded by NZXT and Silverstone (among other brands), and are B-tier on the PSU tier list. These units do have shorter cables, so you may need cable extensions depending on your case.

Comes with what is pictured but also includes a power cord and mounting screws. Feel free to message me if you have any questions!