JH231A: HPE Networking X142 40G QSFP+ MPO SR4 Transceiver

Part JH231A (HPE Networking X142 40G QSFP+ MPO SR4 Transceiver): its HPE listing gives 40G speed over a QSFP+ interface with no stated reach.

JH231A specifications: Speed 40G; form factor QSFP+; connector MPO; standard SR4; part of the HPE Aruba / ProCurve switches product line.