Cisco QSFP-40G-CSR4 Transceiver Module
The Cisco QSFP-40G-CSR4 is a 40 Gigabit Ethernet QSFP+ optical transceiver designed for high-speed connectivity over multimode fiber (MMF). It supports the 40GBASE-CSR4 standard and uses four parallel optical lanes operating in the 850nm wavelength range.
With a 12-fiber MPO/MTP connector, the Cisco QSFP-40G-CSR4 is designed for short-reach data center and enterprise network applications. It can support distances of up to 300 meters on OM3 and 400 meters on OM4 multimode fiber, depending on the fiber infrastructure and link conditions.
Cisco QSFP-40G-CSR4 Technical Specifications
| Specification |
Details |
| Product Model |
QSFP-40G-CSR4 |
| Form Factor |
QSFP+ |
| Data Rate |
40Gbps |
| Ethernet Standard |
40GBASE-CSR4 |
| Optical Lanes |
4 lanes |
| Wavelength |
850nm nominal |
| Wavelength Range |
840–860nm |
| Fiber Type |
Multimode Fiber (MMF) |
| Connector |
12-fiber MPO/MTP |
| OM1 Reach |
Up to 33m |
| OM2 Reach |
Up to 82m |
| OM3 Reach |
Up to 300m |
| OM4 Reach |
Up to 400m |
| Power Consumption |
Approximately 1.5W |
40GBASE-CSR4 Optical Connectivity
The Cisco QSFP-40G-CSR4 extends the reach of the IEEE 40GBASE-SR4 interface using parallel multimode fiber. Four optical lanes operate around 850nm to provide an aggregate 40Gbps Ethernet connection.
Multimode Fiber Reach
The module supports different link distances according to the multimode fiber grade. Cisco specifies up to 33m on OM1, 82m on OM2, 300m on OM3, and 400m on OM4 fiber. Proper fiber type, connector polarity, and link engineering should be verified before deployment.
MPO-12 Fiber Interface
The QSFP-40G-CSR4 uses a 12-fiber MPO/MTP interface rather than a duplex LC connector. This parallel-fiber architecture makes the module suitable for structured data center cabling systems designed for 40GbE connectivity.
Network Applications
- 40 Gigabit Ethernet data center uplinks
- Switch-to-switch connectivity
- Server and network aggregation
- Enterprise backbone connections
- Data center leaf-and-spine networks
- Short-distance 40Gbps MMF links
- High-bandwidth network infrastructure upgrades
Compatibility
The Cisco QSFP-40G-CSR4 is designed for compatible Cisco equipment equipped with 40 Gigabit Ethernet QSFP+ ports. Cisco documentation lists the module for 40GBASE-CSR4 applications with 850nm multimode fiber and MPO-12 connectivity. Platform-specific compatibility should always be verified before installation.
Cisco QSFP-40G-CSR4 Price in Bangladesh
Looking for the Cisco QSFP-40G-CSR4 price in Bangladesh? Datacom Technologies (BD) provides Cisco optical transceiver solutions for enterprise networks, data centers, service providers, and network infrastructure projects.
Pricing and availability may vary depending on product condition, quantity, warranty requirements, and project specifications. Contact Datacom Technologies (BD) for current pricing, availability, bulk requirements, and project-based solutions.
Why Choose Cisco QSFP-40G-CSR4?
- 40Gbps high-speed Ethernet connectivity
- 40GBASE-CSR4 four-lane optical technology
- 850nm multimode fiber operation
- Up to 300m on OM3 and 400m on OM4
- 12-fiber MPO/MTP connector
- Low approximately 1.5W power consumption
- Designed for compatible Cisco QSFP+ platforms
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