This 16″ cable is used to connect a LabPro or CBL 2 to the I/O port of a TI-84 Plus calculator. The cable has the small I/O plug on both ends. The cable can also be used to connect a graphing calculator to the I/O port on a Go!Motion, CBR 2, or another calculator. This cable is included with a CBL 2 or LabPro interface.