This is Emerson White Rodgers 50N02A-820 Integrated DSI Control Board 150-1843 50N02A-82099 used HVAC part. 

This part was removed by HVAC technician from a fully functioning system. Old system was replaced with new one and was in good working condition. 

The board was inspected by professional and was in excellent working condition when removed. This part is in very good cosmetic condition as well.  Please see more details from the images attached.

Please check images carefully because you will receive the item pictured or a very similar one. 

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Purchasing used parts you agree with the statement that sometimes hidden defects or malfunctions may occur during installation or continuous use. There is no warranty on used parts. But you have 30 days satisfaction guarantee and 30 days FREE returns.