The Cisco QSFP-40G-CSR4 is a 40GBASE-CSR4 transceiver designed for use with multi-mode fiber (MMF) networks. Operating at an 850nm wavelength, this QSFP+ module supports Ethernet connections up to 40 gigabits per second at speeds over distances of up to 400 meters.

This hot-pluggable and compact form factor solution offers efficient performance in data centers and high-density environments. It complies with the IEEE standards for compatibility and interoperability, ensuring seamless integration into existing network infrastructures.

With its four parallel optical channels utilizing multimode fiber technology, the QSFP-40G CSR4 enables reliable connectivity while maximizing bandwidth utilization. This versatile transceiver facilitates cost-effective upgrades from lower-speed interfaces like SFP+ or X2 modules without requiring major infrastructure changes.

Cisco QSFP-40G-CSR4: 40GBASE-CSR4, 4 lanes, 850 nm MMF, connector type MPO-12.