For example: Agilent E4440A or Anritsu 68369
Probes
Lecroy AP033
LeCroy AP033 High-Performance Active Differential Probe parts, 500 MHz

Manufacturer: Lecroy
Keysight / Agilent B4630A-010
MATLAB Connectivity and Analysis Package

Manufacturer: Keysight / Agilent
Keysight / Agilent E2654A
E2654A Cascade Microtech EZ-Probe Positioner

Manufacturer: Keysight / Agilent
Keysight / Agilent E2663A
Infiniimax Single-Ended Browser Accessory Kit

Manufacturer: Keysight / Agilent
Keysight / Agilent E2668A
InfiniiMax connectivity kit (single-ended)

Manufacturer: Keysight / Agilent
Keysight / Agilent E2676A
Infiniimax 6 GHz Single-ended Browser Head

Manufacturer: Keysight / Agilent
Keysight / Agilent E2678A
InfiniiMax single-ended/diff. socketed probe head

Manufacturer: Keysight / Agilent
Keysight / Agilent E2699A
My Infiniium integration package software

Manufacturer: Keysight / Agilent
Keysight / Agilent E5382A
17 Channel Single Ended Flying leads, connect to 90-pin LA cable

Manufacturer: Keysight / Agilent
Keysight / Agilent E5387A
E5387A Soft Touch Connectorless Probe-Differential, with 90-pin Cable Connectors

Manufacturer: Keysight / Agilent
Keysight / Agilent E5845A
Probe, 46 channel SE ZIF for DDR3 X16 DRAM data BGA probe, connects to 90-pin LA

Manufacturer: Keysight / Agilent
Keysight / Agilent N1022A
HP Agilent N1022A Probe Adapter for 1130/31/32/34A, 1156/7/8A 1168/9A Probes

Manufacturer: Keysight / Agilent
Keysight / Agilent N2744A
T2A probe interface adapter (Tek to Agilent probe adapater)

Manufacturer: Keysight / Agilent
Keysight / Agilent N2779A
3-channel power supply for N2780A/81A/82A/83A

Manufacturer: Keysight / Agilent
Keysight / Agilent N2792A
200 MHz 10:1 high-voltage differential probe

Manufacturer: Keysight / Agilent
Keysight / Agilent N2793A
800 MHz 10:1 high-voltage differential probe

Manufacturer: Keysight / Agilent
Keysight / Agilent N2862B
Passive Probe -10:1, 150 MHz, 1.2 m Low-cost

Manufacturer: Keysight / Agilent