This Liftmaster MA001 Circuit Board is found on the LiftMaster ( Lift-Master ) Mega Arm Barrier High Traffic Commercial DC-Powered Barrier Gate Operator The Mega Arm Sprint and Mega Arm Sprint Tower are DC-powered, high-speed additions to the LiftMaster family of gate operators. Designed with a 24V DC (1/2 HP equivalent) motor, these models provide exceptional speed, making them ideal for parking applications. Constructed with an aluminum alloy chassis, they're corrosion resistant and light enough for one person to carry and install. The heavy-duty motor supports 10,000 cycles per day with an operator speed of .9 seconds to open or close.