This LG 22MK400H-B monitor's main board is up for sale. It is designed to deliver high-quality performance with its 22" FHD display that has a refresh rate of 75Hz and a response time of 1ms. The monitor comes with a FreeSync feature, which eliminates screen tearing and stuttering during gameplay. The board is compatible with an output voltage of 19V and an output current of 0.8, making it efficient and reliable. This monitor board is a perfect replacement for any faulty main board, ensuring that your LG 22MK400H-B monitor functions like brand new.