IS220UCSAH1A is a processor module and a critical component of the GE Speedtronic MKVIe gas turbine control System. It has 6 ethernet connections on the front to connect for communications.
It is designed like the I/O Pack modules with open fins to allow cooling airflow through the unit and mounts with the communication ports forward for ease of use.
IS220UCSAH1A Technical Specification
Speedtronic MK VI