Replacement FOR E403 / E403NA USB IO Switch & Reader Board — E403NA IO BOARD REV 2.1

Compatible replacement FOR E403 E403NA USB board, switch board and reader board. This E403NA IO BOARD REV 2.1 is the direct-fit I/O module for E403 and E403NA models, combining the USB interface, power switch circuitry and reader functions. Ideal for repairs or upgrades—please verify REV 2.1 matches your original board before ordering.