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Delivered consistent 40G SR4 performance over MMF. Stable MPO connectivity.
CFP-40G-SR4=
40GBASE-SR4 CFP MODULE WITH MPO CONNECTOR
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$3,995.00
$842.0078.9% off
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CFP-40G-SR4=
40GBASE-SR4 CFP MODULE WITH MPO CONNECTOR
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CFP-40G-SR4= is a CFP form factor short-range transceiver designed to support 40G Ethernet applications over multi-mode fiber. It utilizes LC connectors and operates at an 850 nm wavelength, ensuring reliable transmission over typical distances of up to 100 m. This module is engineered for data center, enterprise network, and telecom deployments where high-speed, short-range connectivity is required.
CFP-40G-SR4= offers a robust design with an operating temperature range of 0 to 70°C and a power consumption of approximately 6.5W. Its compatibility with major networking brands such as Cisco, Juniper, Huawei, and Arista underscores its suitability for diverse high-performance network environments. The transceiver’s CFP form factor and dedicated performance parameters make it an optimal choice for modern optical interconnect needs.
CFP-40G-SR4= price is $842.00, a 78.9% saving from the Cisco list price of $3,995.00. CFP-40G-SR4= is in stock and available for next-day dispatch. (terms applied)
Request bulk order quote for CFP-40G-SR4= for additional pricing. Browse the full Cisco 40G Optical Modules series or explore all Cisco products.
To get the detailed certification, please go to the Compliance Center.
 CFP-40G-SR4= |  QSFP-40G-LR4-S= |  QSFP-40GE-LR4-S |  QSFP-40G-BD-RX= |  QSFP-40G-CSR4 | |
|---|---|---|---|---|---|
| Compatibility | Cisco, Juniper, Huawei, Arista | Cisco / Juniper / Huawei / Arista | Cisco, Juniper, Huawei, Arista | Cisco / Juniper / Huawei / Arista | Cisco |
| Connector Type | LC | LC | LC | LC | LC |
| Data Rate | 40G | 40G | 40G | 40G | 40G |
| Depth | N/A | N/A | N/A | N/A | 1.00 inches |
| Fiber Type | Multi-mode | Single-mode | Single-mode | Multi-mode | Multi-mode |
| Form Factor | CFP | QSFP | QSFP | QSFP | QSFP |
| Height | N/A | N/A | N/A | N/A | 0.66 inches |
| Input Voltage | 3.3V | 3.3V | 3.3V | 3.3V | 3.3V |
| Max Distance | 100 m | 10 km | 10 km | 100 meters | 100 meters |
| Network Interface | Fiber | Ethernet | Ethernet | Fiber | Fiber |
| Operating Temperature | 0 to 70°C | 0 to 70°C | 0 to 70°C | 0 to 70°C | 0 to 70°C |
| Power Consumption | 6.5W | N/A | 5.5W | N/A | 3.0W |
| Product Name | CFP-40G-SR4= | QSFP-40G-LR4-S= | QSFP-40GE-LR4-S | QSFP-40G-BD-RX= | QSFP-40G-CSR4 |
| Product Type | Transceiver | Transceiver | Transceiver | Transceiver | Transceiver |
| Storage Temperature | -40 to 85°C | -40 to 85°C | -40 to 85°C | -40 to 85°C | -40 to 85°C |
| Supported Protocols | Ethernet | Ethernet | Ethernet | Ethernet | Ethernet, Fibre Channel |
| Transmission Distance | Short-Range | Long-Range | Long-Range | Short-Range | Short-Range |
| Wavelength | 850 nm | 1310 nm | 1271/1294/1318/1341 nm | 850nm | 850nm |
| Weight | N/A | N/A | N/A | N/A | 0.1 lbs |
| Width | N/A | N/A | N/A | N/A | 0.90 inches |
Delivered consistent 40G SR4 performance over MMF. Stable MPO connectivity.
Reliable short-range CFP module for dense deployments.
Maintained steady throughput during peak traffic.
Excellent optical clarity and predictable latency.
Strong compatibility with our 40G backbone.
Dependable SR4 optics for high-bandwidth links.
Solid 40G solution with stable performance.
The CFP-40G-SR4= is a 40GBASE-SR4 pluggable optics module with an MPO connector designed for high-speed multimode fiber Ethernet links up to 100 meters.
The CFP-40G-SR4= supports OM3 and OM4 multimode fiber, delivering reliable 40 Gbps connectivity over short-reach links.
The CFP-40G-SR4= achieves up to 100 meters on OM4 multimode fiber and up to 70 meters on OM3 multimode fiber at 40 Gbps.
The CFP-40G-SR4= module uses a 840 nm VCSEL light source optimized for short-range multimode fiber transmission.