Part J9406A is compatible in the following Models:

HPE MSM-802.11n Access Point Series

HPE ProCurve MSM422 US Access Point - J9358B
HPE ProCurve MSM422 WW Access Point - J9359B
HPE ProCurve MSM422 Access Point (Japan) - J9530B
HPE E-MSM422 Dual Radio 802.11n AP (IL) - J9617A

HPE Wireless Power Supplies

HPE ProCurve MSM335 and MSM422 Power Supply - J9406A