The MX0045A InfiniiMax 4 Adapter is required to bridge the compatibility of InfiniiMax 4 Series probes with the legacy (InfiniiMax III / III+) Probe Heads.

Documents

Compatibility

InfiniiMax III+ Probe Heads Compatible
N5444A 2.92 mm, 3.5 mm SMA Head (30 GHz) Yes
N2836A Solder-In Head (26 GHz) Yes
MX0109A Extreme Temperature Solder-In Head (26 GHz) [with N5450B Extreme Temp. Extension Cable] Yes
InfiniiMax III Probe Heads Compatible
N5445A Browser Head (30 GHz) Yes
N5439A ZIF Head [with N2838A PCB ZIF Tip (25 GHz) and N5440A Ceramic ZIF Tip (28 GHz)] Yes