National Instruments NI PXI-2501 Industrial FET Multiplexer Switch Module

NI National Instruments PXI-2501 Low-Voltage Multiplexer/Matrix FET Switch

National Instruments NI PXI-2593 500 MHz RF Multiplexer Switch Module

National Instruments NI PXI-2599 Dual SPDT RF Relay Switch Card, 26.5GHz

National Instruments NI PXI-2503 / Relay Multiplexer