Cisco QSFP-40G-CSR4 Network Transceivers & SFP Modules
Cisco Parts Accessory Model Overview
Frequently Asked Questions
What is the Cisco QSFP-40G-CSR4 transceiver module used for?
The Cisco QSFP-40G-CSR4 is a 4x10GBASE-SR transceiver module designed for high-speed optical networking in data center and enterprise environments. This hot-swappable module enables 40 Gigabit Ethernet connectivity over multi-mode optical fiber, making it ideal for short-reach network deployments. We offer this module as part of our comprehensive Cisco transceiver portfolio available from barcodesinc.com.
Is the QSFP-40G-CSR4 compatible with my existing Cisco network equipment?
The QSFP-40G-CSR4 is designed to work with Cisco switches and routers that feature QSFP ports supporting 40GBASE-SR specifications. Before purchasing, verify your equipment's transceiver compatibility requirements and port specifications. Contact us today to confirm compatibility with your specific Cisco infrastructure, and our team can help ensure proper integration.
What is the maximum transmission distance for the QSFP-40G-CSR4 module?
As a short-reach transceiver, the QSFP-40G-CSR4 operates over multi-mode optical fiber at distances up to approximately 300 meters, making it suitable for intra-data center and campus network connections. For longer-distance requirements, alternatives like the QSFP-40G-LR4-S-RF (supporting up to 10km over single-mode fiber) are available from us. Visit barcodesinc.com to explore our full range of Cisco transceiver options for different distance requirements.
What are the key differences between QSFP-40G-CSR4 and QSFP-40G-LR4 transceivers?
The QSFP-40G-CSR4 is optimized for short-reach deployments using multi-mode fiber with a maximum distance of ~300 meters, while the QSFP-40G-LR4-S-RF supports longer distances up to 10km using single-mode fiber. The CSR4 is more cost-effective for data center environments, whereas the LR4 is better suited for campus or metropolitan area networks. We offer both options to match your specific network topology and distance requirements.
Can the QSFP-40G-CSR4 be hot-swapped without disrupting network operations?
Yes, the QSFP-40G-CSR4 is a hot-swappable module, allowing you to insert or remove it from compatible Cisco equipment without powering down the system. This design minimizes network downtime during maintenance, upgrades, or troubleshooting. Ensure your Cisco device supports hot-swappable transceivers and follow proper insertion procedures when handling the module.
What optical fiber type does the QSFP-40G-CSR4 require?
The QSFP-40G-CSR4 operates over multi-mode optical fiber (MMF), specifically OM3 or OM4 grade fiber, which is standard in modern data centers and short-distance network installations. The module uses LC connectors for fiber attachment and supports 40 Gigabit Ethernet transmission at 850nm wavelength. Contact us today if you need guidance on fiber type selection or compatibility verification for your network infrastructure.
