Tektronix TDP4000 Differential Probe, 4 GHz, TekVPI Interface, TDP Series Features: 4 GHz Probe Bandwidth Maximum input voltage ±15 V (DC + pk AC) Differential input capacitance =0.3 pF Differential input resistance 100 kilohms Common mode input range +5 V to -4 V Excellent Common Mode Rejection Low Capacitive and Resistive Loading Compact Probe Head Size for Probing Small Geometry Circuit Elements DUT Attachment Accessories Enable Connection to Fine Spaced SMDs Connects Directly to Oscilloscopes Using TekVPI Probe Interface Cable Length 48 in.