The Advantech EKI-2525 (commonly ordered as the current version EKI-2525-BE) is a rugged, compact 5-port unmanaged industrial Fast Ethernet switch. Operating as a pure plug-and-play communication module, it requires absolutely no software setup. It serves as a highly reliable solution for linking PLCs, HMIs, and remote I/O nodes in harsh environments where dust, vibration, and power fluctuations are common.