Check the listing for details. Mighty Mule Silver Serie HD Double R4211 Control Board for Silver Gate Operators. Condition: New. Listed at 380.81 USD. Mighty Mule Silver Serie HD Double R4211 Control Board for Silver Gate Operators Mighty Mule Silver Serie HD Double R4211 Control Board for Silver Gate Operators The Mighty Mule Silver R4211 control board is compatible with the Mighty Mule FM500 and Silver HD Double automatic gate openers. This control board is a durable, flexible replacement for the circuit board in any of these gate openers. The R4211 control board is capable of handling single gate installations, and it can support push and pull-to-open settings. All GTO/Mighty Mule accessories will work with this board, and it is made to fit easily into any control box. The Silver R4211 is a replacement control board for the FM500 and Silver HD Single gate openers Built to support all Mighty Mule, Silver HD Series or GTO accessories Can handle push and pull-to-open settings and dual gate operation, and can direct power from a solar panel or from an ac transformer Is an ideal replacement control board if a previous board was burned out by a lightning strike, a power surge, or if the previous board was burned out by reversed battery wiring Not compatible with the PRO-SW1500, SW2000XL/S or the Mighty Mule FM350 automatic gate openers Backed by a 12 month limited warranty MFG Brand Name : Mighty Mule MFG Model # : R4211 MFG Part # : R4211 Disclaimer: - Manufacturer has revised the board and updated to the newest version for this reason you may receive a Red or Green R4211/R5211 control board that will be the same replacement as the blue one, as show below Payments & Returns Policy