AC to DC power adapter featuring 110v (North America power style) input to 12V DC output High 5A maximum output current Great for powering most all Meade powered telescope models and other 12V accessories when you have access to 110V wall power Connects to the 12V input jack on the telescope's control panel The DC end of the cable features a 5.5mm O.D./ 2.5mm I.D. tip-positive, right-angle plug