HP 54710A User's Reference Manual page 36

Use the HP 54713B plug-in when:
•
The signal happens once or infrequently, and you are using the real-time
sampling mode.
•
Your application requires only 500-MHz bandwidth, (rise time is slower
than 2.1 ns) and you need more than 2 channels.
•
You application requires a 1 MΩ input because you are using a
passive-compensated divider probe.
Use the HP 54714A plug-in when:
•
Your application requires up to 8 channels.
Use the HP 54721A plug-in when:
•
The signal happens once or infrequently, and you are using the real-time
sampling mode.
•
You need the 1.1-GHz real-time bandwidth (rise time is slower than 1 ns).
•
You need the 4-GSa/s sample rate.
•
You need 32K memory depth.
Use the HP 54722A plug-in when:
•
The signal happens once or infrequently, and you are using the real-time
sampling mode.
•
You require the 8-GSa/s sample rate.
•
You need high, real-time bandwidth.
•
Your application requires high trigger bandwidth, and you can use external
triggering.
How the Oscilloscope Works
Choosing Plug-ins
1–19