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Name:
SRX-QSFP-40G-LR4
- Description:
- 40GE QSFP+ OPTICAL TRANSCEIVER
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- 6091245547645
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$6,593.00
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$4,152.00
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SRX-QSFP-40G-LR4
40GE QSFP+ OPTICAL TRANSCEIVER
$6,593.00
$4,152.00
8 in Global Warehouse
$4,152.00
37% off
TRUSTED, TRIED, PROVEN
SRX-QSFP-40G-LR4 Overview
SRX-QSFP-40G-LR4 is a QSFP transceiver designed for 40G data transmission over long-range distances using LC connectors and single-mode fiber. It supports Ethernet protocols and is built in a compact form factor, making it ideal for high-performance data centers, enterprise networks, and telecommunications environments.
Engineered with a 1310nm wavelength laser, the SRX-QSFP-40G-LR4 module achieves a maximum transmission distance of up to 10km while maintaining low power consumption and precise physical dimensions. Its robust design and compatibility with leading network platforms ensure reliable long-range connectivity in modern high-speed networking applications.
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SRX-QSFP-40G-LR4 Specifications
| Product Type | Transceiver |
| Form Factor | QSFP |
| Data Rate | 40G |
| Connector Type | LC |
| Wavelength | 1310nm |
| Transmission Distance | Long-Range |
| Fiber Type | Single-mode |
| Max Distance | 10km |
| Supported Protocols | Ethernet |
| Network Interface | Ethernet |
| Power Consumption | 4.0W |
| Operating Temperature | 0 to 70°C |
| Storage Temperature | -40 to 85°C |
| Input Voltage | 3.3V |
| Compatibility | Juniper |
| Product Name | SRX-QSFP-40G-LR4 |
| Height | 0.39 inches |
| Width | 0.78 inches |
| Depth | 1.42 inches |
| Weight | 0.1 lbs |
SRX-QSFP-40G-LR4 Use Case
High-Density Data Center Inter-Rack 40G Connectivity
Cloud and enterprise data centers deploy the SRX-QSFP-40G-LR4-40GE QSFP+ transceiver to link spine and leaf switches across server pods up to 10 km apart over single-mode fiber. This module delivers IEEE 802.3ba-compliant 40 Gb/s throughput with low power (≤ 3.5 W) and compact QSFP+ form factor, enabling scalable east-west traffic, reduced latency, and optimized rack density for seamless VM migrations and microservice architectures.
Metro Ethernet 40G Aggregation for Service Providers
Telecom carriers integrate the SRX-QSFP-40G-LR4-40GE QSFP+ transceiver into metro aggregation rings to carry 40 Gb/s traffic between central offices over distances up to 10 km. By leveraging 4×10 Gb/s WDM channels, this LR4 module ensures robust link redundancy and cost-effective bandwidth scaling, delivers carrier-grade signal integrity, and simplifies network expansion without fiber re-cabling or chassis upgrades.
High-Performance Computing Cluster Backbone
Research institutions and financial firms use the SRX-QSFP-40G-LR4-40GE QSFP+ transceiver for backbone links in GPU/CPU-intensive clusters spanning campus or multi-building environments. Supporting low-latency 40 Gb/s transmission and up to 10 km reach, this LR4 module guarantees deterministic packet delivery and high spectral efficiency, accelerating parallel simulations, AI training jobs, and real-time analytics with minimal jitter and maximum throughput.
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table
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| Compatibility | Cisco / Juniper / Huawei / Arista | Juniper | Juniper | Juniper | Cisco / Juniper / Huawei / Arista |
| Connector Type | LC | LC | LC | N/A | LC |
| Data Rate | 100G | 10G | 40G | 10G | 10G |
| Depth | 4.0 inches | 1.20 inches | 1.42 inches | N/A | 1.65 in |
| Fiber Type | Single-mode | Single-mode | Single-mode | N/A | Multi-mode |
| Form Factor | CFP | SFP+ | QSFP | SFP+ | SFP+ |
| Height | 1.0 inches | 0.66 inches | 0.39 inches | N/A | 0.22 in |
| Input Voltage | 3.3V | 3.3V | 3.3V | 3.3V | 3.3V |
| Max Distance | 10 km | 10 km | 10km | 3 meters | 220 m |
| Network Interface | Fiber | Fiber | Ethernet | Ethernet | Ethernet |
| Operating Temperature | 0 to 70°C | 0 to 70°C | 0 to 70°C | 0 to 70°C | 0 to 70°C |
| Power Consumption | 5.0 W | 1.5 W | 4.0W | N/A | 2.5W |
| Product Name | SRX-CFP-100G-LR4 | SRX-SFPP-10G-LR | SRX-QSFP-40G-LR4 | SRX-SFP-10GE-DAC-3M | SRX-SFP-10GE-LRM |
| 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 |
| Transmission Distance | Long-Range | Long-Range | Long-Range | Short-Range | Short-Range |
| Wavelength | 1310 nm | 1310 nm | 1310nm | N/A | 1310 nm |
| Weight | 0.5 lbs | 0.12 lbs | 0.1 lbs | N/A | 0.04 lbs |
| Width | 4.5 inches | 0.98 inches | 0.78 inches | N/A | 0.56 in |
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Questions & Answers
Q
What is the SRX-QSFP-40G-LR4 transceiver?
A
The SRX-QSFP-40G-LR4 is a 40 GbE QSFP+ optical transceiver that supports up to 10 km over single-mode fiber, offering high-density, low-power 40 Gigabit Ethernet connectivity.
Q
Which devices are compatible with SRX-QSFP-40G-LR4?
A
SRX-QSFP-40G-LR4 is fully compliant with the QSFP+ MSA and works with major OEM switches and routers from Cisco, Juniper, Arista, HP and other 40 GbE platforms.
Q
What transmission distance does SRX-QSFP-40G-LR4 support?
A
This transceiver supports optical links up to 10 km over single-mode fiber (SMF) using LC duplex connectors.
Q
What wavelength does the SRX-QSFP-40G-LR4 use?
A
The SRX-QSFP-40G-LR4 uses four separate 1310 nm LAN-WDM wavelengths to deliver aggregated 40 Gbps throughput.
Q
Is the SRX-QSFP-40G-LR4 hot-swappable?
A
Yes. The SRX-QSFP-40G-LR4 is hot-pluggable, allowing installation or removal without powering down the host system.
Q
What connector type does SRX-QSFP-40G-LR4 use?
A
It uses a duplex LC connector interface, compatible with single-mode duplex fiber patch cords.
Q
How much power does the SRX-QSFP-40G-LR4 consume?
A
Typical power consumption is 3.5 W, ensuring energy-efficient operation in high-density environments.
Q
What operating temperature range does SRX-QSFP-40G-LR4 support?
A
The transceiver operates reliably from 0 °C to 70 °C (32 °F to 158 °F) ambient temperature.
Q
Does the SRX-QSFP-40G-LR4 support digital diagnostics monitoring (DDM)?
A
Yes. It features full 2-wire serial digital diagnostics monitoring (DDM) compliant with SFF-8472 for real-time performance metrics.
Q
What data rate does SRX-QSFP-40G-LR4 support?
A
It supports an aggregated data rate of 40 Gbps, with each lane operating at 10 Gbps for high-speed data transmission.
Q
Is the SRX-QSFP-40G-LR4 MSA-compliant?
A
Yes. The module adheres to the QSFP+ MSA (Multi-Source Agreement), ensuring multi-vendor interoperability.
Q
What applications are ideal for SRX-QSFP-40G-LR4?
A
Ideal applications include data center uplinks, aggregation, high-performance computing clusters and metro optical networks up to 10 km.
Q
How do I install the SRX-QSFP-40G-LR4?
A
Align the module with the QSFP+ port, push until it clicks, connect LC fiber cables, and verify link status via your host device.
Q
What is the mean time between failures (MTBF) of SRX-QSFP-40G-LR4?
A
The SRX-QSFP-40G-LR4 offers an MTBF exceeding 1 million hours, ensuring long-term reliability.
Q
Does the SRX-QSFP-40G-LR4 come with a warranty?
A
Yes. It includes a limited lifetime warranty covering defects in materials and workmanship.
Q
How does SRX-QSFP-40G-LR4 differ from SR4 transceivers?
A
Unlike SR4 modules optimized for multimode fiber, the LR4 version uses single-mode fiber at 1310 nm for longer reach up to 10 km.
