Cisco QSFP-40G-SR4-S, Wavelength 850nm, Connector MTP/MPO, TX Power -7.6~1dBm, Power Consumption 1.2W, Max Data Rate 42Gbps, Powerbudget 3.5dB, Receiver Sensitivity<-11.1dBm, Extinction Ratio 3dB, Protocols 40G Ethernet, Infiniband QDR, SATA/SAS3, IEEE 802.3ba, MSA Compliant. The Cisco QSFP-40G-SR4-S Compatible QSFP+ Optical Transceiver Module is designed for use in 40GBASE Ethernet throughput up to 150m over OM4 multimode fiber (MMF) using a wavelength of 850nm via a MTP/MPO connector.