Grandstream power supply 12V.

1amp, For GXV3140, HT704, GXV3601, GXV3601-HD, GXV3611-HD, GXV3651-HD, GXV3651-FHD, GXV3662-HD, GXW4108, GXW4104, GXV3662_FHD, GXV3672_HD, GXV3672_HD_36, GXV3674_HD_VF, GXP2140, GXP2160.