All Products
Services
Support
About Us
Resources
Mind your business with a variety of trusted payment options.
Use order number or tracking number to check shipping status.
Get your quote fast and offer you more professional service.
Help manage your budget & expenditure better.
Free samples support, achieve your test results efficiently.
Professional team support and service, to solve your problems in time.
Ask us whatever you care, we will help you 24/7.
Get your quote fast and offer you more professional service.
Meet us and know our mission, belief, service and more.
Find our locations and get connected with us closely.
Quality management, testing, compatibility and global compliance.
Download ISO, CE, FCC, UL, RoHS and REACH certificates by product line.
Lab tour, optical test bed, compatibility tool and test requests.
Find out the latest news and events around l-p.com
Deep dive into technical guides, industry standards, and SFP compatibility insights.
Detailed product benchmarks and side-by-side comparisons to help you choose the right module.
Explore real-world connectivity solutions for data centers, enterprises, and telecom networks.
Essential tips on choosing data rates, transmission distances, and connector types.
New Customer? Create an account
The LINK-PP LQ-M3140-L24C is a high-performance 40G QSFP+ optical transceiver engineered for long-distance data transmission. Compliant with IEEE 802.3ba and 40GBASE-LR4 standards, this single-mode fiber module delivers an aggregate bandwidth exceeding 40Gbps. It operates flawlessly over a 20km reach, making it an optimal networking solution for modern data center interconnects.
| LINK-PP Part Number | LQ-M3140-L24C | Vendor Name | LINK-PP |
| Form Factor | QSFP+ | Max Data Rate | 40Gbps |
| Wavelength | 1310nm | Max Cable Distance | 20km |
| Connector | MPO | Media | SMF |
| Transmitter Type | DFB | Receiver Type |
PIN |
| Operating Temperature Range | 0°C to +70°C | Protocols | 40G Ethernet, MSA Compliant |
This versatile 40G QSFP+ transceiver integrates four independent full-duplex channels, each supporting 11.2Gbps. Built for harsh operating environments, it features a low power dissipation of under 3.5W. The hot-pluggable design ensures seamless integration into advanced data center switches and high-speed enterprise routing networks.
Functioning as a premium 40G QSFP+ optical module, the LQ-M3140-L24C transforms four 10Gbps electrical input channels into multiplexed optical signals. This robust fiber optic transceiver ensures seamless, high-speed data communications for demanding telecom infrastructures and enterprise networks.
Perfectly optimized for metro networks and client-side telecom connections, this 40G module provides scalable network bandwidth. It supports Infiniband QDR and DDR interconnects, empowering metropolitan network infrastructures with reliable, uninterrupted, and ultra-fast long-haul data routing capabilities.
Operating centrally at the 1310nm wavelength, this QSFP+ module strictly aligns with the ITU-T G694.2 wavelength grid standard. Utilizing advanced DFB laser chips, the 1310nm optical transceiver effectively minimizes signal dispersion across demanding single-mode fiber optical deployments.
Designed for extended reach, the LQ-M3140-L24C 40G transceiver guarantees exceptional data integrity across a remarkable 20km transmission distance. Paired with single-mode fiber, this 20km optical module easily bridges vast geographic gaps in campus and metropolitan communication setups.
Equipped with a high-density male MPO connector, this transceiver ensures secure optical interfacing. To maximize signal clarity and eliminate reflection losses, the MPO interface specifically requires an 8-degree angled contact face receptacle for optimal PSM4 parallel networking.
Featuring built-in Digital Optical Monitoring (DOM) capabilities, this 40G QSFP+ module allows network administrators to access real-time diagnostic data via a 2-wire serial interface. Easily track critical parameters to ensure your networking hardware maintains peak operational stability.
Ensuring superior networking safety and performance, the LINK-PP LQ-M3140-L24C 40G QSFP+ transceiver meets stringent global optical communication standards, satisfying rigorous QSFP MSA compliance for industry-wide applications.
Our comprehensive quality testing program strictly evaluates every LQ-M3140-L24C module. We simulate harsh network environments to guarantee continuous operational excellence, unmatched durability, and flawless high-speed transmission.
Backed by premium quality certifications, this 40GBASE-LR4 transceiver conforms strictly to CE, FCC, and RoHS standards. These credentials guarantee environmentally safe, interference-free, and legally compliant telecom infrastructure integration.
Fully QSFP MSA compliant, the LQ-M3140-L24C is extensively certified for reliable host-device compatibility. It perfectly pairs with mainstream networking switches, routers, and enterprise servers without vendor lock-in connectivity issues.
Every LINK-PP 40G QSFP+ transceiver undergoes rigorous laboratory testing protocols to validate optical precision, guaranteeing ultra-reliable performance across mission-critical single-mode fiber installations.
Validates the 1310nm central wavelength accuracy, preventing frequency shifts during dense long-range data transmission.
Evaluates signal integrity and transmitter eye mask definitions to guarantee error-free 40G network communication.
Simulates maximum traffic loads to ensure ultra-low bit error rates across the 20km reach.
Confirms continuous module stability within 0°C to 70°C, verifying resilient thermal management capabilities.
We utilize secure, industry-standard packaging and highly reliable global freight partners to deliver your LINK-PP LQ-M3140-L24C transceivers safely and on time, anywhere worldwide.
Each 40G QSFP+ module is securely sealed within electrostatic discharge protective bags.
Custom-fitted foam enclosures actively absorb physical shocks to prevent optical component damage.
Expedited warehouse handling ensures your network transceiver orders are dispatched without delay.
Partnering with leading couriers to guarantee swift and traceable worldwide shipping solutions.
Integrating the LINK-PP LQ-M3140-L24C is incredibly simple. Just insert the hot-swappable module into your QSFP+ router port, connect an 8-degree angled male MPO single-mode fiber patch cord, and instantly deploy ultra-fast 40G connectivity for your data center.
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 LQ-M3140-L24C 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
| Pictures | ID# | Description | Price | Stock | Add to Cart |
Q: Our telecom company is planning a massive data center batch deployment next quarter. Do you offer volume discounts for bulk purchasing this 40G PSM4 module? By C***s on 2026-05-20
A: Yes, we provide aggressive tiered pricing for enterprise B2B procurement. For high-volume deployment orders, please contact our sales team directly to negotiate custom bulk discounts that will significantly optimize your IT infrastructure budget. By admin on 2026-05-20
Q: We run a mix of Cisco Nexus and Arista 7050X series in our DC. Will these 40G QSFP+ transceivers work seamlessly without throwing third-party warning logs? By M***n on 2026-01-02
A: Absolutely. The LQ-M3140-L24C is 100% MSA compliant and strictly coded for cross-platform equipment compatibility. Network engineers regularly run multi-brand switch compatibility tests (including Cisco, Arista, and Juniper) with this module, confirming instant plug-and-play recognition and zero third-party lock-out errors. By admin on 2026-01-02
Q: Can I use OM4 multimode fiber with this module, or does the MPO interface strictly require single-mode fiber (SMF) for the 20km reach? By K***l on 2025-12-04
A: The LQ-M3140-L24C is specifically engineered with a DFB laser designed exclusively for Single Mode Fiber (SMF) to achieve the 20km transmission distance. You must use SMF paired with an MPO APC connector to eliminate reflection losses; multimode fiber (like OM3/OM4) is not supported for this specific PSM4 adaptation type. By admin on 2025-12-05
Q: Does this optical module fully comply with industry standard protocols? We need strict adherence for our public sector telecom contracts. By S***h on 2025-10-16
A: Yes, it is fully certified and adheres strictly to both IEEE 802.3ba and 40GBASE-LR4 industry standards. It passes all rigorous compliance testing, making it a safe, scalable, and reliable choice for government and enterprise-grade networking requirements. By admin on 2025-10-16
Q: Are LINK-PP QSFP+ transceivers compatible with Cisco switches? By *** on 2025-09-09
A: Yes, all 40G QSFP+ modules from LINK-PP are 100% Cisco compatible and tested for seamless integration. By Mr. happy cai on 2025-10-12
Q: What is FEC (Forward Error Correction)? By M***l on 2025-05-05
A: FEC (Forward Error Correction) is an error correction technique todetect and correct a limited number of errors in transmitted data without the need for retransmission. It works by adding redundant bits to a bitstream to help the decoder odetect and correct some transmission errors without the need for retransmission. This function needs to be turned on by the transmission device. By admin on 2025-05-05
{{reply_items.topic || reply_items.text}}By {{reply_items.author}}
{{ lpMoneyText(detail_data.displayed_price.unit_prefix, item.displayed_price.value || item.displayed_price.min, detail_data.displayed_price.unit_suffix) }}
Singapore
Carrier
CostDelivery TimeTracking
Company
CostTime
{{ shipitem.name }}
{{ isFreeShipping(shipitem)? 'Free Shipping' : lpMoneyText(detail_data.displayed_price.unit_prefix, shipitem.price, detail_data.displayed_price.unit_suffix) }} To Be Negotiated {{shipitem.datemin}}-{{shipitem.datemax}} days Available
{{parseInt(detail_data.left_num) ? detail_data.left_num +' in Stock' :detail_data.zeroStockOrder==0?'Out of Stock':'Available'}}