Tektronix TAP3500 Active Probe: 3.5 GHz bandwidth, TekVPI interface, high impedance, low capacitance, wide dynamic range, ideal for high-speed signal acquisition and analysis.
Tektronix TAP4000 Active Probe: 4 GHz bandwidth, 10X attenuation, 0.8 pF capacitance, 30V peak input, 40 kohm input resistance, TekVPI interface, 1.3m cable length, TAP Series