- Support for 40GBase Ethernet
- Hot-swappable input/output device that plugs into a 40-Gigabit Ethernet QSFP+ Cisco switch port
- Interoperable with other IEEE-compliant 40GBase interfaces available in various form factors
- Support for ""pay-as-you-populate"" model
- Support for the Cisco quality identification (ID) feature which enables a Cisco switch to identify whether the module is certified and tested by Cisco
The Cisco 40GBase-LR4 QSFP+ module supports link lengths of up to 10 km over a standard pair of G.652 single-mode fiber with duplex LC connectors. The 40 Gigabit Ethernet signal is carried over four wavelengths. Multiplexing and demultiplexing of the four wavelengths are managed within the device.