Teledyne LeCroy ZS2500 Active Probe: 2.5 GHz bandwidth, 0.9 pF capacitance, 1 Mohm impedance, 8/12 V power supply, ProBus interface, ZS Series.
Teledyne LeCroy ZS4000 Active Probe: 4 GHz bandwidth, 0.6 pF capacitance, 1 Mohm impedance, 8/12 V power supply, ProBus interface, ZS Series.