Lenovo BNT - QSFP+ transceiver module - 40GbE - 40GBASE-SR4 - up to 150 m - for BNT RackSwitch G8264F, RackSwitch G8264R, ThinkAgile HX2320 Appliance, ThinkSystem NE2580O

While 40 Gb Ethernet is an emerging technology, there are many options. To increase the number of available 10 Gb ports, use QSFP+ DAC break out cables to split out each 40 Gb port and connect up to four 10 Gb SFP+ external ports.