4Jul, 2025
    Why Choose 100G QSFP28 SR1 and 200G QSFP56 SR2 Optical Transceivers?

    Recently, GIGALIGHT has introduced the 100G QSFP28 SR1 and 200G QSFP56 SR2 optical transceivers, specifically designed for short-distance interconnections. Leveraging cutting-edge technology, these transceivers empower customers to effortlessly construct future-ready, efficient network architectures.

    Why Opt for 100G QSFP28 SR1 and 200G QSFP56 SR2?

    Faced with the widely adopted 100G QSFP28 SR4 and 200G QSFP56 SR4 optical transceivers in the market, customers may wonder: Why choose these new offerings from GIGALIGHT? The answer lies in their tailored design to meet the demands of future network upgrades.

    While traditional optical transceivers are mature and cost-effective, they struggle to keep pace with the requirements of high-speed network architectures like 400G/800G amidst the AI-driven network upgrade wave.

    Technological Innovation to Meet Future Challenges

    With the advent of 100G PAM4 technology, most 400G/800G optical transceivers now employ this technology (4×100G PAM4 and 8×100G PAM4). In this context, continuing to use 4-channel 25G NRZ (100G QSFP28 SR4) or 4×50G PAM4 (200G QSFP56 SR4) technologies would lead to issues such as speed mismatch, port wastage, and soaring costs. GIGALIGHT’s 100G QSFP28 SR1 and 200G QSFP56 SR2 optical transceivers are precisely engineered to address these pain points.

    Case Study: Seamless Integration and Effortless Upgrades

    Consider the example of connecting an NVIDIA ConnectX-7 (dual-port 200Gb/s) network card with a 400G QSFP112 switch. Direct connection would result in link downtime, with the switch reporting an “Unsupported speed” error. However, introducing the 200G QSFP56 SR2 optical transceiver resolves the issue. By utilizing dual-channel PAM4 modulation technology, this transceiver intelligently splits the 400G QSFP112 port into two independent 200G channels, enabling perfect interconnection with the 200G QSFP56 network card without hardware modifications. Similarly, a 400G QSFP112 switch can automatically recognize a 4×100G link through four 100G QSFP28 SR1 optical transceivers.

    When connecting to an 800G switch, direct interconnection can be achieved using 8×100G QSFP28 SR1 or 4×200G QSFP56 SR4 transceivers. Moreover, GIGALIGHT’s 100G QSFP28 SR1 and 200G QSFP56 SR2 transceivers can also directly interconnect with each other, offering great convenience.

    100G QSFP28 SR1: Single-Channel Efficiency and Simplified Cabling

    Single-Channel Breakthrough: Utilizing PAM4 modulation technology, it achieves high-speed transmission of 100Gbps per channel, significantly reducing the number of optical fibers and simplifying cabling complexity.
    Multimode Fiber Support: Based on OM4 fiber, it offers a transmission distance of up to 100 meters, meeting short-distance high-bandwidth demands.
    Low Power Consumption Design: With power consumption below 3.5W, it enhances energy efficiency and is suitable for high-density deployment environments.

    200G QSFP56 SR2: Dual-Channel Interconnection, Empowering the Future

    Flexible Compatibility: Supporting PAM4 modulation technology, it is compatible with various baud rates from 25G to 200G, automatically adapting to mixed 400G/200G environments for seamless interconnection in heterogeneous data centers.
    High Performance and Low Power Consumption: Employing advanced DSP chips and VCSEL laser technology, it reduces power consumption by 30% while achieving a single-channel rate of up to 100Gbps, ensuring stability in high-density deployments.
    Plug-and-Play: With a standardized QSFP56 package, it supports hot-swapping and DDM real-time monitoring, enabling deployment in minutes and improving operational efficiency by 50%. Cabling costs are reduced by 70% compared to SR4, requiring only dual-core OM4 fiber for 100m transmission.

    Broad Application Scenarios to Meet Future Demands

    Whether for hyperscale cloud service providers, AI/ML data centers, or financial institutions with extremely high requirements for ultra-low latency, GIGALIGHT’s 100G QSFP28 SR1 and 200G QSFP56 SR2 optical transceivers provide bandwidth elasticity for the next decade.

    Conclusion: Unleash Potential Without Obsolescence

    By choosing GIGALIGHT’s 100G QSFP28 SR1 and 200G QSFP56 SR2 optical transceivers, you can immediately unlock the full potential of 400G/800G switches without discarding existing 100G/200G equipment, leading you into a new era of future network architectures.

    200G QSFP56 SR2
    7May, 2025
    Gigalight launches 200G QSFP56 SR2 to help data centers with different baud rates interconnect

    May 7, 2025, Shenzhen, China. –Recently, GIGALIGHT proudly launched the industry’s cutting-edge 200G QSFP56 SR2 optical module. This module is built on 2×100G PAM4 modulation technology and is a carefully crafted interconnect solution designed to meet the stringent requirements of the next-generation data center for ultra-high speed, low latency, and high compatibility, setting a new benchmark for the industry.

    Technological Leadership: Breaking Through the Boundaries of Rate and Energy Efficiency

    As data centers accelerate their upgrade to 200G/400G architectures, traditional optical modules are facing severe challenges in terms of transmission rate, power consumption, and compatibility. GIGALIGHT’s 200G QSFP56 SR2 optical module achieves a significant performance leap through three major innovations.

    High Rate and Low Power Consumption Combined

    This optical module supports a transmission rate of up to 200Gbps (2×100G PAM4), fully meeting the demanding bandwidth requirements of scenarios such as AI/GPU clusters and cloud computing. At the same time, it adopts an advanced energy efficiency optimization design, reducing overall power consumption by 30% compared to traditional solutions, thus providing strong support for the construction of green and low-carbon data centers.

    Broad Compatibility for Flexible Interconnection

    GIGALIGHT’s 200G QSFP56 SR2 optical module successfully breaks the limitations imposed by differences in switch platforms and is compatible with a variety of mainstream interface standards, including 400G QSFP112 and 400G QSFP56-DD. In addition, it supports multiple AOC interconnection schemes, enabling seamless interconnection between heterogeneous devices and significantly reducing customers’ costs in network upgrade and transformation.

    Industry Certification, Highlighting High-Reliability Design

    GIGALIGHT’s 200G QSFP56 SR2 optical module has successfully passed multiple industry authoritative certifications and fully complies with QSFP56 MSA and IEEE 802.3 standards. When paired with OM4 multimode fiber, it can achieve a transmission distance of up to 100 meters (SR2), fully meeting the needs of short-distance interconnection within machine rooms.

    Innovative Application Scenarios

    Unique Application Scenario: Breakout of 400G QSFP112 AOC into 2×200G QSFP56 SR2

    This innovative solution effectively breaks the limitations of device ports, enabling flexible interconnection from 400G to 200G and perfectly adapting to high-speed heterogeneous network architectures.

    Typical Application Scenario: Breakout of 400G QSFP56-DD SR4 AOC into 2×200G QSFP56 SR2

    This solution can meet the needs of efficient interconnection in different switch environments, providing strong support for the flexible deployment of data centers.

    Extended Application Scenario: Breakout of 800G OSFP SR8 to 4×200G QSFP56 SR2

    By breaking out one 800G OSFP SR8 port into four 200G QSFP56 SR2 ports, this solution greatly enhances network flexibility and assists modern data centers in achieving scalable and high-density deployments.

    Comprehensive Coverage of Core Application Scenarios

    Data Center Architecture Upgrade

    GIGALIGHT’s 200G QSFP56 SR2 optical module can strongly support the transformation of 200G spine-leaf architectures, effectively alleviating port density pressure and optimizing the layout of machine room resources.

    Heterogeneous Network Fusion

    This optical module can solve the problems of protocol and rate mismatching that arise during the mixed networking of equipment from multiple vendors, reducing the complexity of operation and maintenance and accelerating the iterative upgrade of customers’ networks.

    AI Computing Power Interconnection Acceleration

    Aimed at scenarios such as AI training and high-performance computing, GIGALIGHT’s 200G QSFP56 SR2 optical module can provide high-speed and low-latency connections, offering solid network support for the development of AI computing power.

    About GIGALIGHT

    As an open optical networking explorer, Gigalight integrates the design, manufacturing, and sales of both active and passive optical devices and subsystems. The company’s product portfolio includes optical modules, silicon photonics modules, liquid-cooled modules, passive optical components, active optical cables, direct attach copper cables, coherent optical communication modules, and OPEN DCI BOX subsystems. Gigalight focuses on serving applications such as data centers, 5G transport networks, metropolitan WDM transmission, ultra-HD broadcast and video, and more. It stands as an innovative designer of high-speed optical interconnect hardware solutions.