400GBASE SR4 QDD PAM4 850nm 100m DOM MPO-12/APC MMF Optical Transceiver Module

PN: CT-400G-QDD-SR4

Product Description

400G QSFP-DD SR4 850NM 100M

The 400GBASE-SR4 optical transceiver features an MTP/MPO-12 connector and supports transmission distances of up to 100 meters over parallel OM4 multi-mode fiber. It complies with the IEEE 802.3bs protocol and the 400GAUI-8 standard.

This module transmits a 400 Gigabit Ethernet signal across four parallel lanes, utilizing a single wavelength per lane. It also offers support for 2 × 200G-SR and 4 × 100G-SR configurations, making it a versatile solution for high-speed networking.

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400G BASE SR4 QDD Optical Transceiver for High-Speed Data Centers

Our 400G BASE SR4 QDD transceiver is designed for high-performance data center and enterprise networking, delivering ultra-fast 400Gbps connectivity over multimode fiber (MMF) with a reach of up to 100 meters. Featuring 8-channel PAM4 modulation, it ensures high-speed, low-latency, and efficient data transmission with optimized power consumption.

Why Choose Our 400G QDD SR4 Optical Transceivers?

Built for AI-driven computing, cloud networking, and high-speed interconnects, our 400G BASE SR4 QDD transceiver delivers exceptional performance, scalability, and reliability to support the demands of modern data centers and enterprise networks.

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400G-SR4-QDD

Lifetime Warranty

We stand by the exceptional quality of our optical transceivers, which is why we offer a lifetime warranty—giving you complete confidence in performance, reliability, and long-term value.

Specifications

The 400Gbps QSFP-DD SR4, also known as 400GBASE SR4 QDD Optical Transceiver, is a high-speed, short-range optical module designed for high-performance data communication over multimode fiber (MMF). Engineered for hyperscale data centers, cloud computing environments, and enterprise networks, this transceiver ensures efficient and reliable high-speed connectivity for demanding applications.

Equipped with eight full-duplex data lanes, each operating at 25.78125Gbps, this transceiver achieves an aggregate bandwidth of 200Gbps, making it a powerful solution for high-bandwidth applications. It utilizes OM3 fiber to support transmission distances up to 70 meters and OM4 fiber to extend reach up to 100 meters, providing flexible deployment options for modern data center architectures.

Using an 850nm VCSEL (Vertical Cavity Surface Emitting Laser) array for transmission and a PIN photodetector array for reception, the 400G QSFP-DD SR4 module delivers low-latency and energy-efficient performance while supporting 2x100GBASE-SR4 Ethernet standards. With a maximum power consumption of under 4W, this module ensures efficient power usage, reducing operational costs and heat output in high-density networking environments.

Housed in a hot-pluggable QSFP-DD form factor, this transceiver is designed for easy integration and quick deployment into existing network infrastructures. The inclusion of an MPO-24 optical connector allows for high-density fiber connectivity, making it ideal for scalable network growth.

The 400G QSFP-DD SR4 transceiver supports advanced internal Clock and Data Recovery (CDR) circuits on both the transmitter and receiver channels, with CDR bypass capability for flexible and low-latency networking. This feature enhances signal integrity and performance stability, ensuring smooth data flow in mission-critical applications.

With a wide case operating temperature range of 0°C to 70°C, the transceiver is built to withstand varied operating conditions in data centers, cloud environments, and high-speed network infrastructures. Additionally, it is fully compliant with RoHS standards, demonstrating adherence to environmental and safety regulations, making it a sustainable and future-proof solution for next-generation networking.

Applications

  • 400G Ethernet
  • Datacenter switch

Features

  • 53.125 GBd PAM4 ×4 channel 400G-SR4 Optical interface
  • 26.5625 GBd PAM4 ×8 channel 400G AUI-8 C2M Electrical interface
  • Up to 100m transmission distance on OM4/OM5 MMF
  • 850nm VCSEL and PIN receiver
  • QSFP-DD MSA package with MPO-12 APC
  • Very low EMI and excellent ESD protection
  • +3.3V power supply
  • Power consumption less than 8W
  • Operating case temperature: 0~70°C
  • IIC rate up to 1MHz

Resources

CT-400G-QDD-SR4 Data Sheet

Delivery & Lead Times

At Carritech, we pride ourselves on our exceptional service and commitment to meeting our customers’ needs. Our extensive range of SFP transceivers 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.

Lifetime Warranty

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.

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