Cisco 40GBASE QSFP Modules Overview Cisco’s 40GBASE QSFP (Quad Small Form-Factor Pluggable Plus) modules provide high-density 40 Gigabit Ethernet connectivity suitable for various applications, including data centers, high-performance computing networks, enterprise core and distribution layers, and service provider transport. Main Features: 40GBASE Ethernet Support: Offers high-speed 40 Gigabit Ethernet connections. Hot-Swappable: Can be plugged into 40-Gigabit Ethernet QSFP ports on Cisco switches without powering down the system. Flexible Interface: Compatible with various 40GBASE interfaces in different form factors. Interoperability: Works with other IEEE-compliant 40GBASE interfaces. Pay-as-You-Populate: Supports incremental upgrades as network needs grow. Cisco Quality Identification: Certified and tested by Cisco for guaranteed quality and performance. Module Specifications: Cisco QSFP-40G-SR4: Reach: Up to 100 meters on OM3 multimode fiber, and up to 150 meters on OM4 multimode fiber. Connection: 12-fiber ribbon cables with MPO/MTP connectors. 4x10G Mode: Compatible with ribbon to duplex fiber breakout cables for 10GBASE-SR interfaces. Insertion Loss: Maximum 1.9 dB over 100 meters OM3 or 1.5 dB over 150 meters OM4. Cisco QSFP-40G-CSR4: Reach: Up to 300 meters on OM3 multimode fiber, and up to 400 meters on OM4 multimode fiber. Connection: 12-fiber ribbon cables with MPO/MTP connectors. 4x10G Mode: Supports 10GBASE-SR interfaces with ribbon to duplex fiber breakout cables. Insertion Loss: Maximum 2.6 dB over 300 meters OM3 or 2.9 dB over 400 meters OM4. Cisco QSFP-40G-LR4: Reach: Up to 10 kilometers on G.652 single-mode fiber. Connection: Duplex LC connectors. Wavelengths: Transmits 40G Ethernet signals over four wavelengths with internal multiplexing and demultiplexing.   SKU: QSFP-40G-SR4 Categories: Cisco, Cisco SFP Module Tag: Cisco SFP Module