For this kind of QSFP to CX4 cable for optimal

QSFP to CX4 cable Now On Sale [15% OFF] - Amphenol QSFP to CX4 Cable offer an excellent hybrid cable solution for CX4/InfiniBand and QSFP rated switches, network adapters, and storage arrays. With the rapid shift to 40-Gigabit rated backbones, an intermediate cabling solution is needed between QSFP (40G) and CX4/InfiniBand (10G/20G) gear. Each Amphenol CX4-QSFP copper cable permits auto-negotiation between the two connected devices for optimal network throughput. Please select an appropriate QSFP to CX4 cable length

QSFP to CX4 cables use cutting edge technology to provide a cost effective high speed interconnect solution. At 3 times the port density of a standard SFP plug, The Quad Small Form-Factor Pluggable (QSFP) interface provides the low profile, high bandwidth, reduced power cost needed for HPC super computers and large data centers. These cables have a QSFP connector on one end and a CX4 Connector on the opposite end. Reaching data rates of up 5Gpbs per channel. Compatible with 4x Infiniband SDR/DDR and 10 GbE applications.