SP500X , 500 MHz, ±300 V, 10X Attenuation, Single-Ended Passive Oscilloscope Probe
783629-01 - NI (National Instruments)
The SP500X, or Multi-Contact Isoprobe IV - 10:1, is a standard passive probe with fixed 10x attenuation for oscilloscopes that provide 1 MΩ input impedance.