Part J9731A is compatible in the following Models:

Aruba 2920 Switch Series

HPE 2920-24G Switch - J9726A
HPE 2920-24G-POE+ Switch - J9727A
HPE 2920-24G-POE+ Switch - J9727AR
HPE 2920-48G Switch - J9728A
HPE 2920-48G-POE+ Switch - J9729A
HPE 2920-48G-POE+ Switch - J9729AR
HPE 2920-48G-POE+ Switch/S-Buy - J9729AS
HPE 2920-48G-POE+ 740W Switch - J9836A

HPE Switch SFP+ Modules

HPE 2920 2-port 10GbE SFP+ Module - J9731A