It is an inferior design.
The goal on high-current power delivery is to minimize resistance. Introduction of additional mechanical connectors is only a negative thing, even when it's new, let alone after aged a bit, a few hundred thermal cycles, etc.
It follows the Enermax tradition, add marketing gimmicks but without any assurance that what's inside is even worth $50. Who knows who made the guts of this "Ultra" brand. Certainly that is a generic moniker, all the major brand PSU manufacturers' names would add value to the product, yet it is generically named. Beware that the odds are overwhelmingly high that this PSU isn't worth even 400W, and what wattage it "could" produce may be further impeded by the additional mechanical connectors.
This is the ideal PSU for a showcase system that never gets turned on lest it get dusty. For everyday use high-powered system, better to use the well known staples, PC P&C, Delta, FOrton, Antec. If you're willng to gamble on a generic then one can be had for under $25, instead of $130.