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The LINK-PP LQ-CW100-LR4C 100G QSFP28 optical transceiver delivers 103.125 Gbps aggregate throughput over single-mode fiber (SMF) using four 25.78 Gbps NRZ lanes. Featuring a 3.3V power supply, under 3.5W low power dissipation, and a hot-pluggable duplex LC interface, it operates stably within a commercial 0°C to 70°C temperature range for high-density 100G Ethernet infrastructures.
| LINK-PP Part Number | LQ-CW100-LR4C | Vendor Name | LINK-PP |
| Form Factor | QSFP28 | Max Data Rate | 103.125Gbps (4x 25.78Gbps) |
| Wavelength | 1271nm, 1291nm, 1311nm and 1331nm | Max Cable Distance | 10km |
| Connector | Duplex LC | Media | SMF |
| Transmitter Type | DFB | Receiver Type | PIN |
| TX Power | -6.5~2.5dBm | RX Power | -11.5 to 2.5dBm |
| Modulation (Electrical) | 4x 25G-NRZ | Modulation (Optical) | 4x 25G-NRZ |
| DDM/DOM | Supported | Operating Temperature Range | 0°C to +70°C |
| Protocols | QSFP28 MSA Compliant | Warranty | 5 Years |
Engineered for high-speed telecom and enterprise networking, the LINK-PP LQ-CW100-LR4C combines QSFP28 MSA compliance, CAUI-4 electrical interfaces, integrated DFB lasers, and PIN receivers. It provides energy-efficient 10km data transmission, advanced digital diagnostics monitoring (DDM), and seamless hot-swappable installation to optimize modern optical network architectures.
The LINK-PP LQ-CW100-LR4C 100G QSFP28 optical module converts four electrical input channels into multiplexed CWDM optical signals. Designed for high-density switches and routers, it ensures reliable high-bandwidth interconnectivity across telecom networks.
For enterprise data center interconnects (DCI) and cloud computing infrastructures, the LQ-CW100-LR4C delivers robust 100GBASE-CWDM4 Ethernet connectivity, minimizing latency while maximizing spine-and-leaf network throughput over long-distance single-mode fiber backbones.
Utilizing advanced CWDM4 multiplexing technology, the LQ-CW100-LR4C transceiver combines four optical channels onto one duplex single-mode fiber strand, significantly reducing optical cabling infrastructure costs while doubling fiber utilization efficiency.
The LQ-CW100-LR4C module operates across four standardized CWDM center wavelengths—1271nm, 1291nm, 1311nm, and 1331nm. Internal optical MUX/DeMUX components guarantee clean spectral separation and low crosstalk across all transmission channels.
Equipped with high-performance DFB uncooled lasers and sensitive PIN photodetectors, the LQ-CW100-LR4C module provides up to 10km link distance on standard G.652 single-mode fiber, making it ideal for campus and metro networks.
Designed with an industry-standard duplex LC optical receptacle, the LQ-CW100-LR4C transceiver enables effortless patching into existing single-mode patch cords, ensuring low insertion loss, mechanical durability, and stable fiber connectivity.
Featuring integrated Digital Optical Monitoring (DOM) via a 2-wire I2C interface, the LQ-CW100-LR4C allows real-time tracking of operating temperature, supply voltage, laser bias current, transmitted optical power, and received optical power.
LINK-PP manufactures the LQ-CW100-LR4C 100G QSFP28 module in strict accordance with international standards, delivering fully compliant, environmentally safe, and high-reliability optical solutions for global networking deployments.
Every LQ-CW100-LR4C transceiver undergoes comprehensive end-to-end quality validation, including electro-optical performance inspection, hardware integrity screening, and multi-switch interoperability testing to guarantee zero-defect deployment in critical networks.
The LQ-CW100-LR4C optical module holds full international certifications, including CE, FCC, UKCA, UL, REACH, and RoHS compliance, guaranteeing electrical safety, electromagnetic compatibility, and strict environmental sustainability.
Certified for broad host-system compatibility, the LQ-CW100-LR4C transceiver seamlessly operates across major tier-1 switches, routers, and network interface cards without triggering vendor-lock error notifications.
Advanced automated testing protocols ensure that each LINK-PP QSFP28 transceiver delivers exceptional signal integrity, low latency, and enduring network reliability.
Optical spectrum analysis verifies center wavelength accuracy and ensures side mode suppression ratios exceed 30dB.
Eye diagram testing validates clean optical signal masks, minimal jitter, and superior transmitter waveform quality.
Stringent PRBS pattern testing confirms reliable transmission with bit error rates strictly below 1E-12.
Thermal chamber cycling guarantees stable 0°C to 70°C commercial operating temperature performance without packet loss.
All LINK-PP LQ-CW100-LR4C 100G QSFP28 modules are securely packed and swiftly dispatched via trusted couriers to guarantee safe arrival worldwide.
Premium ESD shielding clamshell blister packaging prevents electrostatic damage during handling.
Heavy-duty cushioned outer cartons safeguard sensitive optical transceivers against transit vibrations.
Streamlined fulfillment ensures rapid order turnaround and timely warehouse dispatch schedules.
Reliable international air freight partnerships provide fast, trackable worldwide door-to-door shipping.
Deploying this 100G QSFP28 optical module within your data center or core network infrastructure is remarkably simple. Just plug the hot-swappable transceiver into a compatible 100G port, attach your duplex LC fiber cable, and immediately unlock seamless, massive 100 Gbps connectivity designed for high-capacity routing and switching.
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-CW100-LR4C 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 | LINK-PP | LINK-PP | LINK-PP | LINK-PP |
Data Rate (Max) | 103.125Gbps (4x 25.78Gbps) | 103.125Gbps | 103.125 Gbps | 103.125Gbps |
Wavelength | 1271nm, 1291nm, 1311nm and 1331nm | 1295.56nm, 1300.05nm, 1304.58nm, 1309.14nm | 850nm-TX/910nm-RX | 1294.53nm, 1299.02nm, 1303.54nm and 1308.09nm |
Connector | Duplex LC | Duplex LC | Duplex LC | Duplex LC |
Cable Distance (Max) | 10km | 100km | 70m | 80km |
Cable Type | SMF | SMF | MMF | SMF |
TX Power | -6.5~2.5dBm | |||
Receiver Sensitivity | -11.5 to 2.5dBm | |||
Operating Temperature | 0°C to +70°C | 0°C to +70°C | 0°C to +70°C | -40°C to +85°C |
Form Factor | QSFP28 | QSFP28 | QSFP28 | QSFP28 |
Transmitter Type | DFB | EML | VCSEL | LAN WDM EML |
Receiver Type | PIN | PIN | PIN | SOA+PIN |
Modulation (Electrical) | 4x 25G-NRZ | 4x 25G-NRZ | 4x 25G-NRZ | 4x 25G-NRZ |
Modulation (Optical) | 4x 25G-NRZ | 4x 25G-NRZ | 2x 50G-PAM4 | 4x 25G-NRZ |
DDM/DOM | Supported | Supported | Supported | Supported |
Protocols | QSFP28 MSA Compliant | QSFP28 MSA, IEEE 802.3, RoHS 10, SFF-8636 | QSFP28 MSA and IEEE 802.3bm CAUI-4 | IEEE 802.3ba, QSFP28 MSA |
Warranty | 5 Years | 5 Years | 5 Years | 5 Years |
| Pictures | ID# | Description | Price | Stock | Add to Cart |
Q: We need to deploy these in an unconditioned outdoor roadside cabinet. Is this module rated for extreme temperatures, or is an industrial version available? By K***s on 2026-07-16
A: The standard LQ-CW100-LR4C model is rated for commercial operating temperatures (0°C to +70°C / 32°F to 158°F). For outdoor roadside telecom enclosures, cell tower base stations, or harsh environments requiring -40°C to +85°C industrial temperature tolerance, we offer hardened versions LQ-CW100-LR4I. Please reach out to our team to arrange custom wide-temperature builds. By admin on 2026-07-16
Q: Does this transceiver comply with international data center safety, optical network standards, and environmental regulations? By W***r on 2026-05-28
A: Yes. The module complies strictly with QSFP28 MSA and IEEE 802.3ba 100GBASE standards. Furthermore, our manufacturing and test facilities operate under ISO 9001, ISO 14001, ISO 45001, and ISO/IEC 27001 certifications. All hardware carries CE, FCC, UL, and RoHS (EU Directive 2015/863) certifications, backed by an industry-leading 5-year warranty. By admin on 2026-05-28
Q: Can we flash these transceivers to connect a Cisco Nexus 9000 spine directly to an Arista 7050 series leaf switch without vendor lock issues? By D***e on 2026-05-06
A: Yes, absolutely. We provide tailored EEPROM multi-vendor coding prior to dispatch. When ordering, simply specify your target host devices (e.g., Port A for Cisco Nexus and Port B for Arista), and our engineering team will program and verify the modules on the corresponding switch testbeds to ensure plug-and-play interoperability, error-free DOM monitoring, and full CLI recognition. By admin on 2026-05-07
Q: What type of fiber optic patch cable should we pair with this transceiver, and can it bridge an 8km span without an optical amplifier? By E***t on 2026-03-03
A: This module requires standard Duplex LC terminated OS2 Single Mode Fiber (SMF, 9/125µm). Because it utilizes four internal CWDM wavelengths (1271nm, 1291nm, 1311nm, and 1331nm) multiplexed over a single fiber pair with a link budget up to 10km, an 8km span runs natively without requiring external optical amplification, dispersion compensation, or MTP/MPO breakout cabling. By admin on 2026-03-03
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