Power Rail Probe 2GHz, 1:1

The Keysight N7020A is a power rail probe.

Bandwidth: 2GHz

Attenuation: 1:1

Offset range: +/- 24V

DC loading: 50 kOhm DC input impedance

Active signal range: +/- 850 mV

Can be used with: Keysight InfiniiVision 3000T and 4000 X-Series oscilloscopes, InfiniiVision 6000 X-Series oscilloscopes ordered after Feb 1, 2016, the Infiniium S-Series DSO and MSO high-definition oscilloscope and the Infiniium 9000 Series DSO and MSO oscilloscopes running software revision 5.20 or newer

If you need higher bandwidth:

The N7024A power rail probe has a bandwidth of 6 GHz and can be used with S, V, and Z-Series Infiniium oscilloscopes.

€ 2,250 (net) $2,700 (US)