QSFP 40G SR4 It is designed to operate over multimode fiber systems using a nominal wavelength of 850nm, used in a 4x10G breakout mode for interoperability with 10GBASE-SR and SFP-10/25G-CSR-S (in 10G mode) interfaces up to 100 and 150 meters on OM3, and OM4/OM5 fibers, respectively.
40G QSFP
40G QSFP+ Transceiver modules which provide four channels of data in one pluggable interface. Each channel is capable of transferring data at 10Gbps and supports a total of 40Gbps.