X140 40G QSFP+ MPO CSR4 transceiver - Quad Small Form-factor Pluggable Plus (QSFP+) 4X 10-Gigabit CSR standard, 850nm laser that provides 40-Gigabit connectivity up to 300m (984ft) on multimode fibers - has one Multiple-fiber Push-On (MPO) SR4 connector
HPE QSFP+ SR Transceivers
HPE Switch QSFP28 Modules
HPE FlexFabric 5940 Switch Series
HPE FlexFabric 5950 Switch Series