This water resistant Dual USB Knockout Panel can be surface or flush mounted in dash and includes a protective cover. 5V | 3.1 A |2.1 A plus 1A| Output. Uses a 1.1|8 inch mounting hole.Dual USB Knockout PanelWater Resistant Includes Protective CoverSurface or Flush Mount Uses 1.1|8 in. Mounting Hole5V|3.1A Output Family