200GBASE-SR4 QSFP56 Compatible Transceiver: 200G-QSFP56-100

Our EDGEOPTIC 200G-QSFP56-100 is a multi-vendor compatible 200GBASE-SR4 QSFP56 optical module designed for high-bandwidth 200 Gigabit Ethernet applications operating over multimode fiber infrastructure. The 200G-QSFP56-100 module operates at 850nm wavelength for both transmission and reception across four channels, delivering aggregate data rates up to 212.5 Gbps using advanced PAM4 (Pulse Amplitude Modulation 4-level) signaling technology at 53.125 Gbps per lane. Our 200GBASE-SR4 QSFP56 transceiver utilizes VCSEL (Vertical-Cavity Surface-Emitting Laser) technology for transmission and PIN photodiode arrays for receiving, optimized for next-generation data center interconnects requiring maximum bandwidth density.

The transceiver ensures a 1.9 dB guaranteed optical link budget, which determines the maximum transmission distance capabilities. Over OM4 and OM5 multimode fiber, the transceiver reliably reaches distances up to 100 meters with host FEC (Forward Error Correction) enabled, while OM3 cabling supports shorter reach deployments. However, distance is just an indicative parameter calculated for convenience of identification – ultimately we calculate reach taking into account minimal optical budget and average attenuation of optical cabling in industry standards. The module's 8-fiber architecture utilizing MTP/MPO-12 APC connectors enables efficient parallel optics transmission with superior return loss performance.

200G-QSFP56-100 compatible module is a hot-pluggable QSFP56 with MTP/MPO-12 APC connector as the optical interface, supporting ultra-high density deployments in modern hyperscale data centers. The electrical interface conforms to 200GAUI-4 and SFF-8679 specifications, ensuring compatibility with standard QSFP56 host systems supporting multiple vendor equipment platforms. Our 200GBASE-SR4 QSFP56 transceiver can be encoded to be compatible and successfully operate in different 80+ brands of networking equipment. The module incorporates comprehensive DDM/DOM (Digital Diagnostic Monitoring) functionality providing real-time operational data including transmitted and received optical power levels per channel, module temperature, bias current, and supply voltage monitoring. This diagnostic data is accessible via CMIS V4.0 compliant interface, enabling sophisticated network analytics and predictive maintenance capabilities.

The module operates within a 0 to 70°C temperature range with 5W maximum power consumption, engineered for energy-efficient operation despite the increased bandwidth capacity. Standards compliance includes IEEE 802.3bs for 200 Gigabit Ethernet, IEEE 802.3cd for PAM4 signaling specifications, along with QSFP-DD MSA ensuring forward compatibility with next-generation platforms. The transceiver's PAM4 modulation scheme doubles spectral efficiency compared to traditional NRZ signaling, enabling 200G transmission over existing parallel multimode infrastructure. Our QSFP56 transceiver achieves multi-vendor compatibility through adherence to industry MSA standards, though equipment with vendor-specific module validation may require custom EEPROM programming for seamless integration. The module is CE/RoHS certified and compliant with international product safety standards.

Typical applications include artificial intelligence computing clusters, machine learning infrastructure, hyperscale spine-leaf architectures, and high-performance computing environments. The 200G PAM4 capability provides critical bandwidth for GPU-to-GPU communication, storage area networks, and cloud-scale workload distribution. The QSFP56 form factor maintains backward compatibility with QSFP28 infrastructure while delivering double the bandwidth capacity. Because our focus is providing top quality service, we perform rigorous quality checks before delivery of our products. As a result, we conduct optical parameter measurements with PAM4 signal integrity validation, connector cleanliness tests including APC polish verification, and QSFP56 transceiver EEPROM memory data validation tests.