There are PC power supplies with Ga-N transistors these days, but seems they are so far used only for the very top end. https://www.anandtech.com/show/12645/th

There are PC power supplies with Ga-N transistors these days, but seems they are so far used only for the very top end. https://www.anandtech.com/show/12645/the-corsair-ax1600i-psu-review-unparalleled-performance https://www.anandtech.com/show/12645/the-corsair-ax1600i-psu...