Extreme Networks 400G-DR4-QSFPDD500M Compatible 400G QSFP-DD DR4 PAM4 1310nm 500m DOM MPO-12/APC SMF Optical Transceiver Module

The 400Gbps QSFP-DD DR4 Optical Transceiver is a high-performance module designed for short-range communication over single-mode fiber (SMF) up to 500 meters. This transceiver operates on a PAM4 modulation scheme with an aggregate bit rate of 425Gbps, utilizing 8×53.125Gbps electrical lanes (400GAUI-8) and converting these into four 106.25Gbps optical channels for transmission. It features a 1310nm laser for data transmission and a PIN receiver for signal reception. Fully compliant with QSFP-DD MSA, IEEE 802.3bs standards, and EU Directive 2015/863/EU, this module is ideal for applications like 400GBASE-DR4 Ethernet and data center networking.

Operating on a single +3.3V power supply, the transceiver consumes a maximum power of 12W and is designed to function reliably within a temperature range of 0°C to 70°C. The QSFP-DD form factor supports digital diagnostic monitoring (DDM) via an I2C interface, allowing real-time tracking of operational parameters such as temperature, voltage, and optical power. Equipped with an MPO optical interface, the transceiver delivers robust performance, making it a dependable and efficient choice for high-speed, short-distance optical communication in modern networking environments.

All of our optical transceivers come with a lifetime warranty.

The CT-400G-QDD-DR4 is a QSFP-DD optical transceiver module optimized for 400G data center interconnects and cloud applications. It provides 400 Gb/s aggregate bandwidth using eight 53.125 Gb/s PAM4 electrical lanes (400GAUI-8) mapped into 4 optical channels at 1310 nm. The module supports transmission distances up to 500 m over SMF with MPO connector, operates on a single +3.3 V power supply, and consumes ≤ 12 W. Integrated digital diagnostics monitoring (DDM) is accessible via I²C.

Key specifications

• Form factor / standards: QSFP-DD MSA; 400GBASE-DR4; IEEE 802.3bs; CMIS compliant.
• Data rate: 400 Gb/s (8×53.125 Gb/s PAM4 lanes).
• Reach: Up to 500 m over G.652 SMF.
• Optical wavelength: 1310 nm (per lane: 1304.5–1317.5 nm).
• Connector: MPO.
• Power consumption: ≤ 12 W.
• Supply voltage: 3.13–3.47 V.
• Operating case temp: 0 °C to 70 °C.
• Diagnostics: I²C interface with DDM (temperature, voltage, bias current, TX/RX power).
• Compliance: RoHS; IEEE 802.3bs; QSFP-DD MSA.

Optical characteristics (per lane unless noted)

• 400GBASE-DR4 Ethernet up to 500 m over SMF.
• Data center and cloud computing networks requiring high-bandwidth short-reach interconnects.
• High-capacity server-to-switch connections within hyperscale environments.

Carritech Optics can offer a fully compatible, high-quality alternative to Extreme Networks 400G-DR4-QSFPDD500M.

Carritech part number: CT-400G-QDD-DR4

• QSFP-DD hot-pluggable form factor with MPO connector.
• Supports 400GBASE-DR4 Ethernet with PAM4 signaling.
• 500 m transmission over SMF for data center deployments.
• Power consumption ≤ 12 W for high-capacity short-reach optics.
• Integrated DDM via I²C for real-time monitoring.
• Compliant with IEEE 802.3bs, CMIS, and QSFP-DD MSA.

At Carritech, we pride ourselves on our exceptional service and commitment to meeting our customers’ needs. Our extensive range of SFP transceivers, including the 400G-DR4-QSFPDD500M, 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.