NF4ST-A9 is a motherboard of the brand of Yingtai, not a chip. Chip is a general term for semiconductor component products. The motherboard, also known as the mainboard (mainboard), systemboard (systemboard), or motherboard (motherboard), is the most basic and one of the most important components of the computer. The main board is generally a rectangular circuit board, which is installed with the main circuit system of the computer, which generally has the BIOS chip, I\/O control chip, keyboard and panel control switch interface, indicator connector, expansion slot, DC power supply connector of the main board and card.