Build a clean, reliable network at the edge with a compact 4-port industrial Ethernet switch. The Brainboxes SW-504 is designed for installations where a small number of devices need direct connectivity inside a cabinet, panel, or machine enclosure. Its 4-port layout keeps wiring straightforward while preserving the separation and control that industrial networks require. This class of switch is a practical fit for automation cells, embedded systems, and field equipment that do not need a large access switch but still benefit from dedicated Ethernet infrastructure. In industrial environments, fewer moving parts and a smaller footprint can simplify installation and reduce clutter in tight enclosures. For teams standardizing on compact network hardware, the SW-504 offers a focused answer: connect essential devices, keep the layout manageable, and avoid overbuying capacity you will not use. That makes it a sensible choice for cost-conscious deployments where reliability, cabinet space, and clean cable management all matter.