QSFP+ (Quad Small Form-factor Pluggable Plus) Cable Assemblies are suitable for very short distances and offer a highly cost-effective way to establish a 40-Gigabit link between QSFP+ ports of QSFP+ switches within racks and across adjacent racks. QSFP+ cables are used for 40 GbE and Infniband standards, to maximize performance.
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.