There is disclosed a hot swap adapter having a circuit board, a power connector, a data connector and a circuit board connector. The circuit board may include one more logic devices. The power connector, the data connector and the circuit board connector may attach to the circuit board. The data connector may interface with a serial bus. The circuit board connector may interface with a parallel bus and a power rail. The logic device may provide a conversion from the serial bus to the parallel bus. The logic device may cause current to stop flowing from the power connector to the power rail in response to an over load condition.