StarTech.com 1m QSFP+ to QSFP+ Direct Attach Cable for Juniper QFX-QSFP-DAC-1M 40GbE QSFP+ Copper DAC 40 Gbps Passive Twinax - Cable for Network Device, Server, Switch - First End: 1 x QSFP+ Network - Male - Second End: 1 x QSFP+ Network - Male - 40 Gbit/s - 30 AWG - Black