The Replacement Multiport Controller Interface Adapter (MCIA) is the perfect solution for users who need to replace lost or damaged MCIA for the TruLink A/V Controller. The MCIA provides quick, secure connections for the TruLink A/V Controller. Specifically engineered for use with this controller, the MCIA provides connections for A/C power adapter, RJ45, two DB9, 12V DC Trigger and two IR cables. The MCIA also provides a switch for each DB9 port for toggling between modem and null modem connections. Connectors:  RJ45 - Connection to the controller  3.5mm for IR  Two DB9 for Serial  Screw terminal - two position - Power  Screw terminal - three position - 12V DC Triggering