40GBASE-CR4 QSFP+ Passive Direct Attach Copper Cable
40GBase-CR4 QSFP+ to 4x SFP+ Active Direct Attach Copper Cable
40GBASE-CR4 QSFP+ Active Direct Attach Copper Cable
40GBase-CR4 QSFP+ to 4x SFP+ Passive Direct Attach Copper Cable