The FTCQ-40G-CLB-X Copper QSFP+ Cables is 40GBASE QSFP+ to QSFP+ direct-attach Cable and QSFP+ to four SFP+ cables. They are based on the QSFP+ Multi Source Agreement (MSA), and offer customers a wide variety of high-density 40 Gigabit Ethernet connectivity options for data center, high-performance computing networks, enterprise core and distribution layers, and service provider transport applications.