The LINK-PP LQ-BL859140-SR2C 40G BiDi QSFP+ transceiver delivers high-performance 40GbE connectivity using advanced Bi-Directional technology. Operating at 40Gbps over a single LC duplex fiber, this reliable optical module multiplexes electrical lanes into dual 20Gb/s channels. It supports seamless integration for enterprise networks, maximizing efficiency while utilizing existing multimode fiber infrastructure perfectly.
LINK-PP Part Number
LQ-BL859140-SR2C
Vendor Name
LINK-PP
Form Factor
QSFP+
Max Data Rate
40Gbps
Wavelength
850nm-TX/910nm-RX
Max Cable Distance
150m@OM4/100m@OM3
Connector
Duplex LC
Media
MMF
Transmitter Type
VCSEL
Receiver Type
PIN
DDM/DOM
Supported
Operating Temperature Range
0°C to +70°C
Protocols
IEEE 802.3 40GBASE-SR4, QSFP+ MSA, SFF-8436
Warranty
5 Years
Key Features of LINK-PP LQ-BL859140-SR2C 40G BiDi QSFP+
Upgrading your data center is cost-effective with the LINK-PP LQ-BL859140-SR2C 40G BiDi QSFP+ transceiver. This high-density optical module allows seamless 40GbE transitions using existing 10G LC cabling. It significantly reduces fiber infrastructure costs while maintaining exceptional network performance and scalability.
The LINK-PP LQ-BL859140-SR2C 40G BiDi QSFP+ optical module ensures robust data communication. Engineered for short-range interconnects, this hot-pluggable transceiver guarantees stable 40Gbps aggregate bandwidth, perfectly matching demanding datacom and telecom switch environments.
LQ-BL859140-SR2C: 40G Connectivity for Enterprise Networks
Achieve superior 40G connectivity for enterprise networks with the LQ-BL859140-SR2C. Designed for heavy data aggregation, this high-performance transceiver enhances router connections, ensuring your fast-growing network infrastructure easily handles massive bandwidth demands without compromise.
LQ-BL859140-SR2C Module with 850nm-TX/910nm-RX Wavelength
Operating with an innovative 850nm-TX/910nm-RX wavelength configuration, the LQ-BL859140-SR2C module utilizes advanced VCSEL technology. This BiDi transceiver transmits and receives simultaneously, ensuring highly efficient dual-wavelength optical communication across standard multimode fiber links perfectly.
The LQ-BL859140-SR2C module supporting 100m transmission on OM3 multimode fiber delivers reliable short-range reach. Additionally, it seamlessly extends up to 150m when utilizing high-quality OM4 optical fiber, offering flexible deployment options for expanding data centers.
LQ-BL859140-SR2C Module with Duplex LC Interface
Featuring a standard LC duplex fiber cable connection, the LQ-BL859140-SR2C module with duplex LC interface allows immediate reuse of installed 10G infrastructure. This eliminates costly MPO cabling upgrades, making your 40GbE network migration effortless.
LQ-BL859140-SR2C Module with DOM for Real-Time Monitoring
Enhance your network management using the LQ-BL859140-SR2C module with DOM for real-time monitoring. This digital diagnostic interface allows administrators to track critical optical parameters, ensuring optimal 40G transceiver performance and preventing unexpected network downtime.
LINK-PP LQ-BL859140-SR2C 40G QSFP+ Certification
Every LINK-PP LQ-BL859140-SR2C 40G QSFP+ transceiver meets stringent industry standards. They are fully compliant with IEEE 802.3ba-2010 specifications and RoHS directives, guaranteeing exceptional safety and reliability.
Our comprehensive LQ-BL859140-SR2C quality testing program evaluates each optical module rigorously. We conduct strict assessments to guarantee peak operational stability in demanding high-speed 40G network environments.
LQ-BL859140-SR2C Quality Certifications
Supported by comprehensive LQ-BL859140-SR2C quality certifications, this premium transceiver guarantees environmentally friendly manufacturing. It complies fully with essential QSFP+ MSA regulations for ultimate networking peace of mind.
This product is in conformity with ISO9001. This system is valid to a company engaging in development, production and supply service of fiber optical products. Please contact us to learn more.
ISO/IEC 27001 is an international standard for managing and processing information security. This standard is jointly developed by the International Organization for Standardization (ISO) and the International Electrotechnical Commission (IEC). It sets out requirements for establishing, implementing, maintaining, and continually improving an information security management system (ISMS). Ensuring the confidentiality, integrity, and availability of organizational information assets, obtaining an ISO 27001 certificate means that the enterprise has passed the audit conducted by a certification body, proving that its information security management system has met the requirements of the international standard. Please contact us to learn more.
This product is in conformity with ISO14001.It is intended for use by an organization seeking to manage its environmental responsibilities in a systematic manner that contributes to the environmental pillar of sustainability. Please contact us to learn more.
ISO 45001 is a global standard that sets out the requirements for an occupational health and safety management system (OH&SMS).
REACH is a European Union regulation concerning the Registration, Evaluation, Authorization and Restriction of Chemicals. It came into force on 1st June 2007 and replaced a number of European Directives and Regulations with a single system. The regulation aims to protect human health and environmental safety, maintain and improve the competitiveness of the EU chemical industry, and develop innovative capabilities for non-toxic and harmless compounds to prevent market fragmentation, increase the transparency of the use of chemicals, promote non-animal experiments, and pursue sustainable social development.Please contact us to learn more.
This product meets the applicable requirements of Directive (EU) 2015/863 of RoHS. It restricts the use of 10 hazardous materials in the manufacture of various types of electronic and electrical equipment: lead, mercury, cadmium, hexavalent chromium, polybrominated biphenyls, polybrominated diphenyl ethers, and four different phthalates. Please contact us to learn more.
This product fully accords with the FCC, which aims to manage the radio wave and magnetic fields more reasonably. Please contact us to learn more.
CB is an international system operated by IECEE. This product is based on IEC standards for testing the safety performance of electrical products. Please contact us to learn more.
This product fully accords with UKCA (UK Conformity Assessed) certificate, which signifies that it meets all relevant quality standards as well as health and safety requirements. Please contact us to learn more.
UL certification is a non-mandatory certification in the United States,mainly testing and certification of product safety performance.Its ultimate purpose is to obtain products with a fairly safe level for the market,and to contribute to ensuring human health and property safety.Please contact us to learn more.
LQ-BL859140-SR2C Certified for Reliable Host-Device Compatibility
The LQ-BL859140-SR2C certified for reliable host-device compatibility integrates flawlessly with major telecom equipment. Enjoy plug-and-play functionality across diverse enterprise switches and routers without any configuration issues.
Rigorous testing ensures reliable QSFP+ performance for every LINK-PP unit. We execute detailed validation procedures to confirm absolute signal integrity and hardware durability.
Optical Spectrum Test
The optical spectrum test verifies precise 850nm and 910nm operating wavelengths perfectly.
Eye Pattern Test
Our strict eye pattern test guarantees outstanding 40Gbps signal clarity and low jitter.
Bit Error Rate Test
The bit error rate test ensures flawless data transmission with zero packet loss.
Temperature Test
An extensive temperature test confirms stable operation between 0°C and 70°C environments.
Product Shipping for LINK-PP LQ-BL859140-SR2C 40G QSFP+
We guarantee secure product shipping for LINK-PP LQ-BL859140-SR2C 40G QSFP+ transceivers. Every order is meticulously packed to arrive safely at your global destination.
Anti-Static Protective Packaging
We utilize anti-static protective packaging to prevent electrical discharge damage completely.
Shock-Resistant Transport Protection
Dedicated shock-resistant transport protection safeguards delicate optical components during transit.
Fast Order Processing and Dispatch
Experience fast order processing and dispatch for immediate network upgrade deployments.
Global Logistics and International Delivery
Trusted global logistics and international delivery ensure your modules arrive punctually.
Our LINK-PP LQ-BL859140-SR2C 40G QSFP+ usage demonstration illustrates easy installation procedures. Simply plug the hot-swappable transceiver into your switch and connect your standard LC duplex cables to instantly upgrade your high-speed networking infrastructure without hassle.
LQ-BL859140-SR2C Technical Support
LINK-PP provides professional technical support, including pre-sales consultation, compatibility verification, and post-deployment troubleshooting to ensure smooth network operation.
Pre-Sales Technical Consultation
Professional technical guidance to help customers select the most suitable LQ-BL859140-SR2C modules based on network architecture and application requirements.
Compatibility Verification Support
Compatibility checks and validation to ensure seamless operation with Cisco switches and other supported networking platforms.
Deployment & Installation Assistance
Step-by-step support for installation, configuration, and initial deployment to ensure stable and correct operation.
Long-Term Technical Assurance
Ongoing technical support throughout the product lifecycle to ensure reliable performance in enterprise and carrier-grade networks.
A:
This specific part (LQ-BL859140-SR2C) supports commercial temperatures (0°C to +70°C), making it perfect for indoor datacenters and server rooms. For extreme outdoor environments, we have industrial-grade (-40°C to +85°C) BiDi variants in our catalog—just ask our tech support! By
admin on
2026-04-16
A:
It adapts perfectly to both! You'll easily get up to 100 meters of stable transmission over your standard OM3 fiber, and up to 150 meters if you are running OM4. Both utilize the same standard Duplex LC connector format. By
admin on
2026-04-12
A:
You bet. It is strictly compliant with IEEE 802.3 40GBASE-SR4, QSFP+ MSA, and SFF-8436 standards, ensuring rigorous performance compliance for both datacom and telecom switch environments. By
admin on
2026-04-08
A:
We keep massive local inventory for the LQ-BL859140-SR2C. For a 500-unit batch, handling time is usually just 3 business day, with a 2-5 day transit time to US locations. We guarantee your deployment stays on schedule. By
admin on
2026-04-08
A:
Yes! This module is fully MSA compliant and programmed for plug-and-play interoperability with major OEM brands, including Cisco, Fortinet, Juniper, and Palo Alto. You won't run into any vendor lock-in errors during deployment. By
admin on
2025-11-08
Replaced our legacy spine-leaf optics with this 40G QSFP+ model. The 40GBASE-SR4 protocol support ensures seamless interoperability with our Juniper and Palo Alto gear. Overall total cost of ownership is incredibly low here.
Please write comments with more than three
character.
494018
360287
M***n
Panama
Verified
Purchase
5 .0
2025-09-01
Finding reliable 150m OM4 40G optics without crazy OEM markup is tough. These hit the SFF-8436 standards perfectly. We run them in a high-density 10G NAS aggregation setup with absolutely zero CRC errors!
Please write comments with more than three
character.
494018
360297
S***z
Taiwan, Province of China
Verified
Purchase
5 .0
2025-07-02
Benchmarked this MMF 850nm/910nm optical transceiver against major brands. TX/RX power holds strong even at 65°C under max throughput. It's an excellent duplex LC 40GbE module for scaling indoor data centers efficiently.
Please write comments with more than three
character.
494018
360294
A***z
Panama
Verified
Purchase
5 .0
2025-06-21
We deployed 50 of these 40G QSFP+ BiDi transceivers across our enterprise campus. Reusing our existing LC multimode fiber infrastructure saved massive CAPEX. DDM monitoring is accurate, and Brocade compatibility is 100% stable.
Canada · English · CAD
