FCS-03 is a series of small form-factor plugs (SFF connectors) from TE Connectivity. It is often used for internal data and power connections in a variety of industries, including consumer electronics, telecommunications, computers, and aerospace applications. They are available in nine-pin, three-row configurations and feature touch-proof construction for added safety. They also provide a low-profile design, saving valuable board space. The plugs are well-suited for applications where additional circuit isolation or higher data rate performance is desired.