A Network Interface Module (NIM) is a hardware device used to connect a computer to a network. It provides an interface between the network and the computer, allowing data to be transmitted and received. NIMs are typically used in routers, switches, and other networking equipment. They are also used in industrial automation systems, such as those used in factories and warehouses. NIMs are designed to be reliable and secure, and they are often used in mission-critical applications. They are available in a variety of form factors, including PCI, PCIe, and USB.