The 40G QSFP to SFP+ module is a hot-swappable, integrates 4 independent 10 gigabit per second data lanes in each direction to provide 40Gbps aggregate bandwidth. 40GBASE QSFP+ modules 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,http://www.fiberyes.com/qsfp-4x-sfp-10g-copper and service provider transport applications. The QSFP to SFP+ module connects the electrical circuitry of the system with either a copper or an optical external network. The transceiver is used primarily in short reach applications in switches, routers, and data center equipment where it provides higher density than SFP+ modules.
To keep up, higher performance switching hardware is needed to provide suffi cient bandwidth to avoid blocking. To accommodate the new demands for bandwidth, many newer access switches off er 48-ports of 10Gb Ethernet for connection to downstream servers and 2- or 4-ports of 40G Ethernet for connection to the core switches. These 40G interconnects, which are often implemented using QSFP to SFP+, provide suffi cient bandwidth to enable fully non-blocking switch fabrics.
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