https://probemaster.com/5900-series-500-mhz-oscilloscope-probe-10x/
https://www.picotech.com/accessories/standard-passive-probes/500-mhz-scope-probe
https://www.amazon.com/Oscilloscope-oscilloscope-Attenuation-Bandwidth-Instrument/dp/B07XQJGX9H/