- CR4 Passive Copper Cable
- Direct attach cable
- QSFP+ to QSFP+
- 3.3 ft
- for Catalyst 3016; Nexus 3016
You use QSFP+ transceivers with networking ports used for uplinking and downlinking. For low-cost connections to switches in the same or adjacent racks, use QSFP+ transceivers with copper cables.