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QSFP-40GE-LR4-S
40GBASE-LR4 QSFP+ transceiver module for SMF, duplex LC conn...
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QSFP-40GE-LR4-S is a high-performance QSFP transceiver designed to deliver 40G Ethernet connectivity over long-range networks. This transceiver employs LC connectors and single-mode fiber to achieve transmission distances up to 10 km, making it ideally suited for data center interconnects, enterprise networks, and telecom applications while supporting industry-standard Ethernet protocols.
The QSFP-40GE-LR4-S features a compact QSFP form factor with specifications that adhere to strict vendor standards. Its efficient power consumption, reliable operation over a wide temperature range, and compatibility with leading network equipment brands ensure that it meets the demands of high-speed, long-distance data communications in modern network infrastructures.
QSFP-40GE-LR4-S price is is available on request. Get immediate quote.
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| QSFP-40GE-LR4-S |  QSFP-40G-SR-BD |  QSFP-40G-LR4-S | |
|---|---|---|---|
| Product Type | Transceiver | Optical Transceiver | Optical Transceiver |
| Form Factor | QSFP | QSFP+ | QSFP+ |
| Data Rate | 40G | 40 Gbps | 40 Gbps |
| Connector Type | LC | LC Duplex | LC Duplex |
| Fiber Type | Single-mode | Multi-Mode (MMF) | Single-Mode (SMF) |
| Power Consumption | 5.5W | 3.5 W | 3.5 W |
| Operating Temperature | 0 to 70°C | Commercial (+10°C to 70°C) | Commercial (0°C to 70°C) |
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.
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.
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.
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.
Our specialists assist with compatibility, configuration, licensing, and installation, before and after you buy. Real hardware expertise, whenever you need it.
dispatched quickly and shipped worldwide from regional hubs, fully tracked and insured.
Achieved stable 40G connectivity over 10km SMF. Reliable optics with consistent signal strength for backbone links.
Smooth deployment and excellent interoperability. Maintained full 40G throughput without errors.
Ideal for long-range data center interconnects. Strong optical stability and low latency.
Dependable LR4 module delivering clean performance across our core network.
Consistent 10km reach with no signal degradation. Highly satisfied.
Reliable 40G QSFP+ solution for SMF infrastructure upgrades.
Stable and efficient long-distance 40G connectivity.
The QSFP-40GE-LR4-S is a 40GBASE-LR4 QSFP+ transceiver for single-mode fiber (SMF) with duplex LC connectors and a reach of up to 10 km.
The module supports single-mode fiber (SMF) for long-reach, high-bandwidth 40 GbE links.
It delivers reliable 40 GbE connectivity up to 10 km over SMF using industry-standard optical components.
It uses a duplex LC connector for simple and secure fiber connections in high-density environments.
It supports up to 40 Gbps aggregate data rate, with 4×10 Gbps channels for LR4 optical transmission.
Yes. The hot-pluggable design allows insertion and removal without powering down the host device.
It utilizes four LAN-WDM wavelengths around 1295 nm to 1310 nm for efficient 40 GbE transmission.
Yes. It meets the IEEE 802.3ba and MSA specifications for 40GBASE-LR4 QSFP+ modules.
Yes. It features DDM/DOM for real-time monitoring of optical power, temperature, and voltage.
Typical power consumption is below 3.5 W, helping maintain low energy usage in your data center.
The module operates between 0 °C and 70 °C ambient temperature for standard applications.
It is compatible with all QSFP+ ports on major brands including Cisco, Juniper, Arista, HP, Dell, and Huawei.
Ideal for 40 GbE data center interconnects, core-edge aggregation, and high-speed enterprise networks.
Simply slide the module into a compatible QSFP+ port until it clicks, then connect your LC fiber patch cables.
Use fiber optical test equipment or built-in DDM to verify signal strength, wavelength, and link status.
It includes a limited lifetime warranty covering defects in materials and workmanship under normal use.
Store it in the original antistatic packaging at –20 °C to 75 °C, with relative humidity between 5% and 95% non-condensing.
United States
