XSReviews has reviewed the Kingwin Mach 1 ABT-520WMA1 PSU
A quote from the article:
Kingwin Mach 1 ABT-520WMA1 Review
Kingwin. Would you buy a Kingwin power supply? For that matter, would you buy anything from Kingwin? In the PC component industry, a lesser known manufacturer has to seriously outperform the current market leaders. Hopefully this modular, LED equipped and 520W packing power supply does just that.
Kingwin Mach 1 ABT-520WMA1 Review