Resource	Version	Download	Description / Instructions
GUI Setup Package	F0X3		Latest version of the GUI application software for Windows
.NET DLL	Jul 30, 2025		Recommended API for USB control from a Microsoft Windows PC supporting the .Net framework. No DLL registration required. .Net 4.5 and above: mcl_RF_Switch_Controller_NET45.dll Earlier .Net versions: mcl_RF_Switch_Controller64.dll
ActiveX DLL	Jul 28, 2020		Legacy API for USB control from a Microsoft Windows PC where the .Net framework is not supported. DLL must be registered using RegSvr32.
User Guide	B		Instructions for the setup and operation of Mini-Circuits' mechanical switch systems (hardware & software)
Programming Manual	B6		Full programming instructions for automation via a range of control methods: Ethernet control API using SSH / HTTP / Telnet (all operating systems) USB control API for Microsoft Windows (.Net / ActiveX DLLs) USB control via Direct Programming (Linux)
Programming Examples	Search Examples...		Search and download examples for a range of languages (including Python, LabVIEW, C#, VB & MatLab)

All products are shipped with the latest available firmware and an update is usually not required. Mini-Circuits occasionally makes firmware update files available as a courtesy to add additional features or correct known issues. Please contact testsolutions@minicircuits.com for details.