The motherboard is compatible with most devices of the same specifications, with standard interface and size design, easy to install and remove, can directly replace old components, and has a wide range of compatibility. The circuit is solidly constructed, using high-quality electronic components, resistant to vibration and wear, and can maintain stable operation even with long-term daily use. Equipped with intelligent temperature control logic, it can automatically adjust its operating state according to working conditions, with responsive temperature control to keep the device always at a reasonable operating temperature. The operating power consumption is reasonably designed, with low circuit transmission loss, which effectively reduces the overall energy consumption of the device while maintaining stable operation. Fan (Onboardin) Pcb Assembly EBR75420601 EAX64824601 ， Compatible For LG ，Outdoor Unit ARUB100LTE4 ARUN100LTE4 EBR79838901