Infiniium EXR-Series Oscilloscope: 4 GHz, 4 Channels
EXR404A - Keysight Technologies
4 GHz on all 4 channels, 8 instruments integrated in one, hardware accelerated plotting, and fully upgradeable to 6 GHz and 8 channels.
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Infiniium Oscilloscopes
EXR-Series - Keysight Technologies