CUI Inc. SDI300G-U and SDI300G-UR GaN Adapters are desktop AC-DC power supplies featuring GaN technology. The SDI300G-U (three-prong) and SDI300G-UR (two-prong) adapters are compact and offer 300W maximum output power. These GaN adapters provide level VI efficiency, power factor correction, and a universal input range of 85VAC to 265VAC.