The Cisco® 40GBASE QSFP (Quad Small Form-Factor Pluggable) portfolio offers customers a wide variety of high-density and low-power 40 Gigabit Ethernet connectivity options for data center, high-performance computing networks, enterprise core and distribution layers, and service provider applications. Features and Benefits of Cisco QSFP Modules - Hot-swappable input/output device that plugs into a 40 Gigabit Ethernet Cisco QSFP port - Flexibility of interface choice (for different reach requirements and fiber types) - Interoperable with other IEEE-compliant 40GBASE interfaces where applicable - Certified and tested on Cisco QSFP 40G ports for superior performance, quality, and reliability - High-speed electrical interface compliant to IEEE 802.3ba - QSFP Form factor, 2-wire I2C communication interface and other low-speed electrical interface compliant to SFF 8436 and QSFP Multisource Agreement (MSA)