QSFP to CX4/ 4x cables use cutting edge technology to provide an excellent hybrid cable solution for CX4/InfiniBand and QSFP rated switches, network adapters, and storage arrays. These cables have a QSFP connector on one end and a CX4 Connector on the opposite end. Each CX4-QSFP copper cable permits auto-negotiation between the two connected devices for optimal network throughput. Reaching data rates of up 5Gpbs per channel. Compatible with 4x Infiniband SDR/DDR and 10 GbE applications.

Cisco compatible 40G QSFP+ related cables are available now. For other brands of system, pls make sure your system support QSFP+ cable with general coding. 
The QSFP+ Modules are 100% compatible with Cisco System, 100% tested under CISCO NEXUS 3000 SWITCH. The QSFP+ modules include:
1. 40GBASE-SR4 QSFP+ Module and Fiber Cables (Scheduled product)
2. 40GBASE QSFP+ to Four 10GBASE SFP+ Breakout cable
3. 40GBASE QSFP+ to QSFP+ direct-attach Cable

Specifications:
● QSFP to CX4(SFF-8470) Connetor
● Copper Passive
● 0.5 Meter
● AWG28/AWG30
● Low power consumption 
● Excellent EMI performance 
● High reliability
● Zinc die-cast QSFP connectors with pull-release latch
● SFF-8470 connectors with side squeeze latch
● High performance 8 pair wire construction
● Low cross-talk and pair-to-pair skew
● Fully compliant to QSFP MSA
● RoHS Compliant
● Wide operating temperature range:
● Standard: 0C to +70C
● Industrial: -40C to +85C

Applications:
● 10-Gigabit Ethernet
● QSFP, 10GBASE-CX4 and SDR/DDR InfiniBand