1-Pin, Male SMA to 1-Pin, Female SMA/1-Pin, Female SMA, 50 Ohm Impedance Coaxial Connector—The SMA-SMA-SMA T Connector, sometimes referred to as the Reference Clock T Connector, connects RF wireless test devices and PXI modular instruments to other accessories. It is a 50 ohm impedance connector that measures 0 GHz to 10 GHz.