[(100% Compatibility)] It's 100% compatible for almost all Cisco 40GBASE-LR4 and 10GBASE-LR/LW Standards devices, coding as Cisco QSFP-40G-PLRL4
[(40GBASE-PLRL4)] 40GBASE-PLRL4 QSFP+ Optical Transceiver, 40Gbps, SMF fiber, up to 1.4km over single mode fiber (SMF) using a wavelength of 1310nm via a MTP/MPO-12 Type connector. 2.5W Max Power Consumption, MTP/MPO connector, 4 x DFB+PIN, Supports 4 independent streams of 10GBASELR Lite. Hot Pluggable, support DOM and Host FEC
[(Connector)] 40G QSFP+ PLRL4 transceivers use MTP/MPO optical connectorS, it operates over duplex single mode fiber (SMF) with Single 1x12 MPO receptacles. hot Pluggable, easy to install
[(Breakout 4x10G)] 40G QSFP+ PLRL4 duplex LC Transceivers work with 10G LR for 4x10G connectivity. You can use QSFP-40G-PLRL4 40G 1310nm 1.4km MTP/MPO Transceivers to breakout to 4x10G LR. If the interface of the device supports the breakout feature.