The EV35L43A consist AVR128DB48 Curiosity Nano Evaluation Kit and this kit offers complete support for your next design. Take your next idea to market with a development board that you can keep in your pocket with full program and debug capabilities. Use either Atmel Studio 7 or MPLAB X IDEs as a magnifying glass to look into your MCU and step through the debug. Free, easy-to-use graphical programming tools, Atmel START and MPLAB Code Configurator (MCC), allow you to intuitively program the target MCU. Package Contents:AVR128DB48 Curiosity Nano Evaluation board Two 100mil, 1x28 pin header strips.