Part
J8440C
is compatible in the following Models:
HPE ProCurve 2900 Switch series
ProCurve 2900-24G Switch - J9049A
ProCurve 2900-48G Switch - J9050A
HPE Switch X2 Modules
ProCurve Switch vl 1-port 10-GbE X2 Module - J8766A
HPE X2 CX4 Transceivers
ProCurve 10GbE X2-CX4 Xcver - J8440C