Cisco QSFP-40G-SR4

The Cisco QSFP-40G-SR4 is a Quad Small Form-factor Pluggable (QSFP) transceiver module designed for high-speed data transmission over multi-mode fiber optic cables. It supports a data rate of 40 Gigabits per second (Gbps) and operates using the short wavelength (850nm) laser technology. The "SR4" in the product name stands for "Short Reach 4," indicating that it is designed for short-range transmission. It can transmit data up to a distance of 150 meters over OM4 multi-mode fiber or 100 meters over OM3 multi-mode fiber. The QSFP-40G-SR4 module is commonly used in data centers and high-performance computing environments to connect switches, routers, and servers, enabling high-speed and high-bandwidth network connectivity.