Advanced double-sided thickened gold-plated PCB, FR4 board, board thickness 2.0MM, copper foil thickness 70U 1 10WE | Niu and 2 {UM Beautiful Transformer Factory} 25W with metal shielding Epoxy resin encapsulation for high-end Huanniu, compatible with our store's PASS2.0 and 1.7 pre grades Use it. Input voltage: 110V/220V optional (flying wire short circuit conversion) Output voltage: 2 groups of AC50V+2 groups of AC15V PCBR inch: 193MM * 74MM