A NUMA Node (Non-Uniform Memory Access Node) is a component in computer architecture that allows multiple processors to access memory more efficiently. In a NUMA system, each processor has its own local memory, which it can access faster than memory located on other nodes. This design helps improve performance in multi-processor systems by reducing memory access latency. In a typical NUMA configuration, processors are grouped into nodes, each with its own memory. When a processor needs to access data, it first checks its local memory. If the data is not found, it may access memory from another node, but this takes longer. This architecture is commonly used in high-performance computing and servers to optimize resource usage and speed.