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The H3C QSFP-LR4-40G-I Compatible LINK-PP industrial transceiver delivers outstanding 40GBASE-LR4 Ethernet connectivity. Engineered specifically for harsh environments, this robust 40G QSFP+ optical module operates flawlessly between extreme temperatures of minus forty and eighty-five degrees Celsius. With advanced DFB lasers, it enables reliable single-mode fiber networking up to 10km, meeting demanding enterprise communication requirements.
| H3C Part Number | QSFP-LR4-40G-I | Vendor Name | LINK-PP |
| Form Factor | QSFP+ | Max Data Rate | 40Gbps |
| Wavelength | 1271nm, 1291nm, 1311nm, 1331nm | Max Cable Distance | 10km |
| Connector | Duplex LC | Media | SMF |
| Transmitter Type | DFB | Receiver Type |
PIN |
| Power Consumption | ≤3.3W | Protocols | OTN OTU3, 40G Ethernet, Fiber Channel, SATA/SAS3, MSA Compliant |
| Host FEC | Supported | Operating Temperature Range |
-40°C to +85°C |
This rugged networking component provides highly exceptional bandwidth expansion for industrial ethernet deployments. Featuring uncooled DFB laser and high-sensitivity PIN photodiode, the quad small form-factor pluggable plus transceiver consistently ensures minimal signal degradation, lower power consumption, and uninterrupted long-haul data transmission capabilities.
Functioning as a high-performance 40 Gigabit optical transceiver, this device supports remarkable 41.25 Gbps aggregate data rates. It seamlessly upgrades data center interconnects and core routing infrastructures with superior industrial-grade networking reliability and steadfast operational stability.
Perfectly designed for intelligent transportation, this hardened optical module guarantees continuous 40G broadband connectivity across vibration-heavy railway systems. Its wide temperature tolerance secures critical trackside communication, empowering automated train control and remote rail monitoring networks effectively.
Integrating advanced coarse wavelength division multiplexing technology, this CWDM4 transceiver transmits four distinct optical signals over one fiber pair. This innovative multiplexing significantly maximizes existing dark fiber infrastructure, optimizing network bandwidth while dramatically reducing cabling costs.
Operating across the standardized CWDM grid, the module utilizes precise 1271nm, 1291nm, 1311nm, and 1331nm wavelengths. These strictly calibrated optical lanes ensure minimal crosstalk and exceptional signal integrity for high-speed telecommunication across diverse wide area networks.
Engineered for long-reach applications, this robust long-haul transceiver seamlessly supports distances reaching up to 10km. It perfectly utilizes OS2 single-mode optical fiber, bridging distant campus networks and remote industrial sites without requiring additional signal amplification.
Featuring a standard dual LC receptacle, the module ensures effortless integration with conventional patch cords. This duplex LC interface provides secure, low-insertion-loss optical connections, facilitating rapid deployment and straightforward maintenance within dense fiber optic distribution frames.
Equipped with comprehensive digital optical monitoring capabilities, network administrators can easily access real-time diagnostic data. This DOM functionality accurately tracks operational temperature, laser bias current, voltage, and optical power, preventing unexpected downtime through proactive system maintenance.
Demonstrating outstanding manufacturing excellence, this industrial networking hardware successfully meets stringent global regulatory standards, delivering verifiable safety and uncompromised environmental compliance for enterprise network deployments.
Every single datacom transceiver undergoes an exhaustive quality assurance program. Our systematic laboratory evaluations guarantee flawless optical performance, ensuring unmatched hardware resilience before any market distribution.
This premium communication module holds prestigious CE, FCC, UKCA, UL, and REACH certifications. Furthermore, full RoHS compliance verifies its environmentally responsible construction and superior electrical safety.
Thoroughly verified for extensive multi-vendor interoperability, the device offers plug-and-play functionality. It achieves flawless compatibility across major enterprise routers and ethernet switches without triggering frustrating vendor lock-in errors.
Through uncompromising laboratory assessments, we validate every critical metric. These comprehensive inspection protocols guarantee the ultimate reliability of our fiber optic communication equipment.
Highly precise spectrum analyzers rigorously confirm accurate center wavelengths and optimal signal stability.
Advanced oscilloscopes inspect transmitter eye diagrams to guarantee excellent jitter performance and clarity.
Continuous data traffic simulations ensure absolute transmission accuracy and zero packet loss incidents.
Environmental chambers validate continuous module functionality across extreme freezing and scorching industrial conditions.
We implement professional supply chain management processes to ensure your high-speed networking components arrive safely, securely, and completely ready for immediate infrastructure deployment.
Premium electrostatic discharge bags prevent critical damage to sensitive microelectronic components.
Customized foam padding absorbs severe vibrations during complex logistical transit routes.
Streamlined warehouse operations guarantee expedited fulfillment and rapid outgoing parcel shipments.
Strategic carrier partnerships enable prompt and reliable worldwide courier delivery services.
Experience seamless network integration by simply inserting this hot-swappable module into any compatible core switch. Its straightforward installation instantly establishes a resilient forty-gigabit optical link, immediately elevating industrial communication infrastructures with minimal physical setup or technical configuration.
LINK-PP provides professional technical support, including pre-sales consultation, compatibility verification, and post-deployment troubleshooting to ensure smooth network operation.
Professional technical guidance to help customers select the most suitable QSFP-LR4-40G-I modules based on network architecture and application requirements.
Compatibility checks and validation to ensure seamless operation with Cisco switches and other supported networking platforms.
Step-by-step support for installation, configuration, and initial deployment to ensure stable and correct operation.
Ongoing technical support throughout the product lifecycle to ensure reliable performance in enterprise and carrier-grade networks.
LINK-PP provides after-sales support for the smooth deployment and reliable operation of the optical modules.
15-day no-reason return and refund
Free replacement for dead-on-arrival (DOA) or defective items within the initial period
Free repair services for manufacturing defects throughout the warranty period
Warranty exclusions and conditions apply
Compatible | H3C | H3C | H3C | H3C | H3C | H3C |
Data Rate (Max) | 40Gbps | 40Gbps | 40Gbps | 40Gbps | 40Gbps | 40Gbps |
Wavelength | 1271nm, 1291nm, 1311nm, 1331nm | 1271nm, 1291nm, 1311nm, 1331nm | 1295.56nm, 1300.05nm, 1304.58nm, 1309.14nm | 1271nm, 1291nm, 1311nm, 1331nm | 1271nm, 1291nm, 1311nm, 1331nm | - |
Connector | Duplex LC | Duplex LC | Duplex LC | Duplex LC | Duplex LC | Duplex LC |
Cable Distance (Max) | 10km | 40km | 60km | 20km | 2km | 100km |
Cable Type | SMF | SMF | SMF | SMF | SMF | SMF |
Power Consumption | ≤3.3W | ≤3.3W | ≤3.3W | |||
Operating Temperature | -40°C to +85°C | 0°C to +70°C | 0°C to +70°C | 0°C to +70°C | 0°C to +70°C | 0°C to +70°C |
Vendor Name | LINK-PP | LINK-PP | LINK-PP | LINK-PP | LINK-PP | LINK-PP |
Form Factor | QSFP+ | QSFP+ | QSFP+ | QSFP+ | QSFP+ | QSFP+ |
Transmitter Type | DFB | DFB | DFB | DFB | DFB | EML |
Receiver Type | PIN | APD | APD | PIN | PIN | APD |
Protocols | OTN OTU3, 40G Ethernet, Fiber Channel, SATA/SAS3, MSA Compliant | OTN OTU3, 40G Ethernet, SATA/SAS3, MSA Compliant | OTN OTU3, 40G Ethernet, SATA/SAS3, MSA Compliant | QSFP+ MSA, SFF-8436 | 40G Ethernet, Fibre Channel, SATA/SAS3, MSA Compliant | 40G Ethernet IEEE802.3ba and 40GBASE-EZR4, MSA, QDR/DDR Infiniband |
Host FEC | Supported | Supported | Supported | Supported | Supported |
| Pictures | ID# | Description | Price | Stock | Add to Cart |
Q: Will this module survive in unconditioned outdoor cabinets? Our summer temps can hit 65°C and winters drop below -20°C. By W***l on 2026-04-30
A: Yes! Unlike standard indoor modules, the LQ-CW40-LR4I is a hardened, true industrial-grade transceiver. It is purpose-built for extreme operating temperatures ranging from -40°C all the way up to +85°C, making it perfect for harsh setups like trackside railway systems, cell tower enclosures, and heavy manufacturing plants. By admin on 2026-05-01
Q: Our telecom project is on a tight schedule. Are these industrial 40GBASE-LR4 transceivers currently in stock, and what does the delivery cycle look like? By S***e on 2026-04-01
A: Supply chain stability is one of our strong suits. The LQ-CW40-LR4I is fully stocked with a handling time of just 2 business day. Standard transit times to North America and European facilities are typically between 2 to 5 days. By admin on 2026-04-01
Q: Does this transceiver comply with standard 40G Ethernet protocols for our industry deployment? By K***h on 2026-03-18
A: Definitely. It strictly complies with industry standards including 40G Ethernet, OTN OTU3, Fiber Channel, and SATA/SAS3. It also operates right on the standardized CWDM grid (1271nm, 1291nm, 1311nm, 1331nm) ensuring total compliance with your existing optical infrastructure. By admin on 2026-03-19
Q: Hi, will this 40G QSFP+ LR4 module work seamlessly if I have a mix of Cisco and Arista switches in my data center? By B***s on 2025-11-23
A: Absolutely! The LQ-CW40-LR4I is fully MSA compliant and rigorously tested for cross-platform interoperability. It operates flawlessly as a plug-and-play component across Cisco, Arista, Juniper, Dell, and other major OEM core routers, making multi-vendor network integration painless. By admin on 2025-11-24
Q: We're looking to do a batch deployment for our campus fiber network. Can we get a price break for ordering 100+ units? By C***t on 2025-10-01
A: Yes, we provide tiered volume pricing for enterprise rollouts. For orders of 100 units, the price will be very nice. Please reach out to our B2B procurement team or use our live chat to arrange your bulk discount and net terms. By admin on 2025-10-01
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