Cisco QSFP-100G-ERL4 Compatible 100GBASE-ER4 QSFP28 1310nm 40km DOM Duplex LC/UPC SMF Optical Transceiver Module

The 100Gbps QSFP28 ER4 Optical Transceiver is a high-performance module engineered for long-range data transmission over single-mode fiber (SMF), supporting distances of up to 30 kilometers without Forward Error Correction (FEC) and 40 kilometers with FEC. Operating with a 4-channel architecture, the transceiver multiplexes four lanes of 25Gbps LAN-WDM optical signals for a total aggregate bandwidth of 100Gbps. The transmitter utilizes cooled EA-DFB lasers for precise wavelength alignment, while the receiver employs APD detectors for high sensitivity. Fully compliant with Ethernet 100GBASE-ER4 standards, IEEE 802.3ba, and QSFP28 MSA specifications, it is ideal for applications in data center interconnects, telecom connections, and 100G Ethernet.

This transceiver operates on a single +3.3V power supply, consuming a maximum of 4.5W, and offers digital diagnostic monitoring for real-time insights into temperature, voltage, bias current, and optical power. Designed for commercial environments, it functions reliably within a temperature range of 0°C to 70°C. Featuring a hot-pluggable QSFP28 form factor and a duplex LC optical interface, the module ensures easy integration and maintenance. Its compliance with RoHS standards and Class 1 laser safety regulations further highlights its environmentally friendly and safe design, making it a reliable choice for high-speed, long-distance networking solutions.

The Cisco QSFP-100G-ERL4 Compatible is a 100GBASE-ER4 optical transceiver designed for long-range Ethernet and telecom applications. It converts four lanes of 25 Gb/s electrical data into four LAN-WDM optical channels (1295–1310 nm), multiplexed onto a single fiber. On the receive side, APD-based ROSA ensures high sensitivity for long-distance links. The module supports 30 km reach without FEC and 40 km with FEC, uses a duplex LC connector, and operates from a single +3.3 V supply with a maximum power draw of 4.5 W. Built-in DDM/DOM allows monitoring of key parameters including temperature, voltage, optical power, and bias current.

Key specifications

• Form factor / standards: QSFP28 MSA; 100GBASE-ER4 compliant.

• Data rate: 103.1 Gb/s aggregate (4×25.78125 Gb/s).

• Reach: Up to 30 km (no FEC) / 40 km (with FEC) over G.652 SMF.

• Optical wavelengths (LAN-WDM grid): 1295.56, 1300.05, 1304.58, 1309.14 nm.

• Connector: Duplex LC.

• Power consumption: ≤ 4.5 W; supply current ~1.36 A.

• Supply voltage: 3.135–3.465 V.

• Operating case temp: 0 °C to 70 °C.

• Diagnostics: DDM/DOM with monitoring of bias, power, voltage, and temperature.

• Compliance: RoHS-6; Laser Class 1 (EN 60825-1:2014; 21 CFR 1040.10/1040.11).

Optical characteristics (per lane unless noted)

• 100GBASE-ER4 Ethernet links up to 40 km for metro and regional networks.
• Infiniband QDR/DDR interconnects for high-performance computing.
• Client-side 100G telecom connections with extended reach and high reliability.

• QSFP28 hot-pluggable form factor with duplex LC connector.
• Up to 40 km SMF reach with FEC (30 km without).
• Cooled LAN-WDM EML transmitters (1295–1310 nm) with high-sensitivity APD receivers.
• Low power consumption (≤ 4.5 W) compared with other long-reach optics.
• Built-in DDM/DOM monitoring for proactive network management.
• RoHS-6 compliant and Laser Class 1 safe design.

At Carritech, we pride ourselves on our exceptional service and commitment to meeting our customers’ needs. Our extensive range of SFP transceivers, including the QSFP-100G-ERL4, is designed to cater to various requirements, ensuring that you receive the best solutions for your projects. We understand the importance of timely delivery, and our efficient processes are geared towards providing you with the products you need as quickly as possible. Our dedicated team works tirelessly to ensure that your orders are processed and dispatched promptly, so you can rely on us for swift and reliable service.

We recognise that every project is unique, and our flexible approach allows us to adapt to your specific needs. Whether you require immediate delivery or have more complex requirements, we are here to support you every step of the way. Our commitment to customer satisfaction means that we go above and beyond to ensure that you receive your SFP transceivers in a timely manner, without compromising on quality. Trust Carritech to deliver the solutions you need, when you need them.

At Carritech Optics, we stand by the quality and reliability of our optical transceivers. That’s why we proudly offer a lifetime warranty on all products as a testament to our commitment to excellence and customer satisfaction.

What Does Our Lifetime Warranty Cover?

Our lifetime warranty provides comprehensive coverage for the entire lifecycle of your optical transceivers, ensuring you experience complete peace of mind when choosing Carritech Optics. The warranty covers:

• Defects in Materials and Workmanship: If your product experiences any issues related to manufacturing or materials, we’ll repair or replace it free of charge.
• Performance Assurance: Our optical transceivers are rigorously tested to meet industry standards, and we guarantee they’ll perform as expected in your network environment.

Easy Claims Process

Should you ever need to make a warranty claim, our team is here to assist you. Simply contact our support team with your product details, and we’ll guide you through a quick and hassle-free process to resolve the issue.

Your Network’s Performance, Guaranteed

Carritech Optics is dedicated to providing high-quality optical solutions that you can trust for the long haul. With our lifetime warranty, you can confidently invest in our products, knowing that we’re with you every step of the way.