Pros: I sent an email to their tech support in regards to the high-pitched whine. After a few exchanges, Kingwin agreed to RMA the PSU. Took one week to travel to Kingwin's RMA center in CA, and another week for the replacement PSU to get here. I have not tested or opened the replacement PSU, but I am leaving a feedback anyways in regards to their customer support.

Cons: The hassle of needing to RMA the PSU.

Pros: It...supplies power.

Cons: I purchased this exorbitantly priced PSU precisely because I wanted to avoid the high pitched coil whine. My unit is VERY audible. My trust was misplaced.