The M2-NAND-FLASH is an M.2 daughter card with two flash Winbond 256MB W25N02KWZEIR (WSON8x6) + GigaDevice 256MB GD5F2GM7REBIG (BGA24). Switches (S1) on the board allow the user to freely switch between the two flashes, this can also be switched using software by changing the level of the GPIO. This daughter card connects to the EVK board through the M.2 KEY-E connector.