Cnopto Technology has released QSFP to QSFP 40G Copper Cables,Our QSFP high speed copper cables are 100% built and tested Interconnect Products and are ideal for bandwidth-intense applications such as 40-Gigabit Ethernet, Fibre Channel, and SAS. The QSFP (Quad Small Form Factor Pluggable) interface combines four high-speed 10-Gigabit channels into a low-profile package with 3x the port density of standard SFP.