See all of Keysight's PXI Vector Network Analyzers: - M9370A PXIe VNA, 300 kHz to 4 GHz, - M9371A PXIe VNA, 300 kHz to 6.5 GHz, - M9372A PXIe VNA, 300 kHz to 9 GHz, - M9373A PXIe VNA, 300 kHz to 14 GHz, - M9374A PXIe VNA, 300 kHz to 20 GHz, - M9375A PXIe VNA, 300 kHz to 26.5 GHz ******