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CFP-40G-LR4
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40GBASE-LR4 CFP MODULE
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Hand-picked by our procurement team for standout value. This unit is offered at our sharpest price on current stock, verified against live market rates.
Name:
CFP-40G-LR4
- Description:
- 40GBASE-LR4 CFP MODULE
- Rating:
Added to cart 28 times recently
- Availability:
2 In stock - Ready to Ship
- Brand:
- Cisco
- GTIN:
- 882658337307
- Condition:
Certified Refurbished
Professionally inspected, bench-tested, and firmware-verified, with configurations wiped. Restored to full working order and backed by our warranty.
- Warranty:
- 3
- List Price:
$13,995.00
- Price:
$2,702.0080.7% off
Quantity:
1
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CFP-40G-LR4 Overview
CFP-40G-LR4 is a CFP form-factor optical transceiver engineered for 40G data rates and designed to deliver long‐range connectivity over single-mode fiber. Built with LC connectors and optimized for Ethernet and Fibre Channel protocols, this module supports high-performance applications in data centers, enterprise networks, and telecom infrastructures.
CFP-40G-LR4 features a compact CFP design with officially documented physical dimensions, making it ideal for high-density deployments. Its capability to transmit data reliably over distances up to 10 km, along with proven compatibility with leading networking equipment manufacturers, ensures it meets the rigorous demands of modern network environments.
CFP-40G-LR4 price is $2,702.00, a 80.7% saving from the Cisco list price of $13,995.00. CFP-40G-LR4 is in stock and available for next-day dispatch. (terms applied)
Request bulk order quote for CFP-40G-LR4 for additional pricing. Browse the full Cisco 40G Optical Modules series or explore all Cisco products.
CFP-40G-LR4 Specifications
- Product Type
- Transceiver
- Brand
- Cisco
- Form Factor
- CFP
- Data Rate
- 40G
- Connector Type
- LC
- Wavelength
- 1310nm
- Transmission Distance
- Long-Range
- Fiber Type
- Single-mode
- Max Distance
- 10 km
- Supported Protocols
- Ethernet, Fibre Channel
- Network Interface
- Ethernet
- Power Consumption
- 5.0W
- Operating Temperature
- 0 to 70°C
- Storage Temperature
- -40 to 85°C
- Input Voltage
- 3.3V
- Compatibility
- Cisco, Juniper, Huawei, Arista
- Product Name
- CFP-40G-LR4
- Height
- 1.0 inches
- Width
- 2.8 inches
- Depth
- 3.2 inches
- Weight
- 0.85 lbs
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Product Comparison Table 
| CFP-40G-LR4 |  QSFP-40G-SR-BD |  QSFP-40G-CSR-S |  QSFP-40G-CSR4 | |
|---|---|---|---|---|
| Product Type | Transceiver | Optical Transceiver | Transceiver | Transceiver |
| Form Factor | CFP | QSFP+ | QSFP | QSFP |
| Data Rate | 40G | 40 Gbps | 40G | 40G |
| Connector Type | LC | LC Duplex | LC | LC |
| Fiber Type | Single-mode | Multi-Mode (MMF) | Multi-mode | Multi-mode |
| Power Consumption | 5.0W | 3.5 W | 3.5W | 3.0W |
| Operating Temperature | 0 to 70°C | Commercial (+10°C to 70°C) | 0 to 70°C | 0 to 70°C |
| Height | 1.0 inches | 13.5 mm | 0.33 inches | 0.66 inches |
| Width | 2.8 inches | 18.4 mm | 0.64 inches | 0.90 inches |
| Depth | 3.2 inches | 72.4 mm | 2.85 inches | 1.00 inches |
| Weight | 0.85 lbs | 0.1 kg | 0.1 lbs | 0.1 lbs |
Compliance & Warranty
100% Genuine Product Guarantee
Every unit is authentic, sourced through trusted and authorised channels, and serial-verified on request. Genuine networking and IT hardware, guaranteed, or your money back.
Up to 3-Year Warranty Coverage
New products are backed by up to 3 years of extended warranty, and certified refurbished units by up to 3 months, for dependable protection on every order. Coverage is clear, honoured in full, and confirmed on each product page.
Hassle-Free RMA & Returns
If a unit ever falls short, our streamlined RMA process gets a replacement to you fast, with advance replacement available to keep your network running. No jargon, no runaround.
Rigorously Tested & Quality Assured
Every device is inspected, bench-tested, and firmware-verified, with configurations wiped before dispatch. Additional testing can be arranged to confirm full working condition on request.
Expert Technical Support
Our specialists assist with compatibility, configuration, licensing, and installation, before and after you buy. Real hardware expertise, whenever you need it.
Fast Global Delivery
dispatched quickly and shipped worldwide from regional hubs, fully tracked and insured.
Reviews & Ratings
H
Harrison Bennett
5
Reliable 40G LR4 CFP providing stable 10km SMF connectivity.
I
Ian Bradley
4
Strong long-range optical performance across core links.
J
Jonas Reed
4
Consistent signal levels and smooth deployment.
K
Kyle Bennett
4
Maintained full 40G throughput over extended fiber runs.
L
Logan Murphy
5
Enterprise-grade optics with predictable results.
M
Miles Harper
5
Dependable backbone connectivity solution.
N
Noah Bennett
4
Stable and efficient long-haul 40G module.
Questions & Answers
What is the CFP-40G-LR4?
The CFP-40G-LR4 is a standards-compliant 40GBASE-LR4 CFP optical transceiver module designed for 40 Gb/s Ethernet over single-mode fiber.
What is the maximum transmission distance of the CFP-40G-LR4?
The CFP-40G-LR4 supports a maximum link length of 10 km on ITU-T G.652 single-mode fiber.
Which wavelengths does the 40GBASE-LR4 CFP module use?
It uses four CWDM lanes at 1271 nm, 1291 nm, 1311 nm, and 1331 nm for full 40 Gbps transmission.
What data rate does the CFP-40G-LR4 support?
The module provides an aggregate data rate of 40.3125 Gbps, compliant with IEEE 802.3ba 40GBASE-LR4 specifications.
In which applications is the CFP-40G-LR4 commonly used?
It is ideal for data center interconnects, metro networks, enterprise backbone links, and high-performance computing clusters.
Is the CFP-40G-LR4 hot-pluggable?
Yes. The CFP-40G-LR4 features a hot-swappable design that allows insertion and removal without powering down the host device.
What type of fiber and connector does the CFP-40G-LR4 require?
It operates over single-mode fiber (SMF-28) and uses duplex LC connectors for both transmit and receive channels.
What are the optical power specifications of the CFP-40G-LR4?
Transmit power ranges from 0.5 dBm to 5 dBm, and receiver sensitivity is ≤ –11 dBm for error-free performance.
Which temperature range does the CFP-40G-LR4 support?
The module operates reliably in ambient temperatures from 0 °C to 70 °C (32 °F to 158 °F).
Which industry standards does the 40GBASE-LR4 CFP module comply with?
It complies with IEEE 802.3ba 40GBASE-LR4, MSA CFP, and RoHS environmental directives.
What is the typical power consumption of the CFP-40G-LR4?
Typical power consumption is 6 W maximum, ensuring efficient operation in high-density environments.
How do I install the CFP-40G-LR4 in my switch or router?
Align the module with the CFP port, slide it in until the latch clicks, and verify the link LED for operational status.
How can I verify the CFP-40G-LR4 is functioning correctly?
Check the host system’s diagnostic interface for module status, optical power levels, and error counters to confirm proper operation.
Is the CFP-40G-LR4 compatible with DWDM systems?
No. CFP-40G-LR4 is designed for CWDM lanes and is not compatible with DWDM channel grids without external multiplexing.
What warranty and support come with the CFP-40G-LR4?
The module carries a one-year limited warranty and is backed by technical support for installation, configuration, and troubleshooting.