For use with iPORT NTx-Mini, NTx-GigE, NTx-GigE-IND, NTx-U3 external-powered, NTx-U3-IND external-powered, SB-GigE, SB-U3 external-powered, CL-GigEB-IND, CL-U3B-IND, CL-U3M-IND, and vDisplay HDI-Pro (enclosed); GPIO access is not available on the 12-pin circular connector. (Power cord not required).