COP-85400G-SR4 | OSFP 400G SR4 Optical Transceiver, 850nm, PAM4, 100m Multimode

The COP-85400G-SR4 is a high-performance 400G QSFP-DD SR4 optical transceiver module designed for ultra-high-speed data center interconnections, cloud computing networks, and high-performance computing (HPC) environments. It operates at 850nm wavelength using PAM4 modulation with 4 parallel optical channels, delivering 400Gbps total bandwidth over OM3/OM4 multimode fiber (MMF).
Featuring a hot-pluggable QSFP-DD form factor, MPO-16/MPO-12 connector, and built-in Digital Optical Monitoring (DOM) function, it supports link lengths up to 70m (OM3) and 100m (OM4). Compliant with IEEE 802.3cd and QSFP-DD MSA standards, it offers low power consumption (<3.5W) and wide operating temperature (0°C~70°C), ensuring stable and reliable 400G signal transmission for next-generation data center networks.

• 400G Ultra-High Speed: 4×100G PAM4 channels, total 400Gbps throughput, ideal for data center spine-leaf architecture.
• 850nm VCSEL Technology: High-efficiency 850nm VCSEL array, low power consumption, cost-effective for short-range multimode links.
• Long Reach Support: Up to 100m over OM4 fiber, 70m over OM3 fiber, meeting large-scale data center cabling needs.
• Full Compatibility: Fully compliant with IEEE 802.3cd, QSFP-DD MSA, CMIS 5.0; compatible with major brand switches (Cisco, Juniper, Arista, Huawei, H3C).
• Digital Optical Monitoring (DOM): Real-time monitoring of temperature, voltage, TX/RX power, bias current, facilitating network maintenance.
• Hot-Pluggable & Easy Deployment: QSFP-DD compact form factor, hot-swappable, plug-and-play, no system reboot required.
• High Reliability: RoHS compliant, Class 1 laser safety, 0°C~70°C commercial temp, long MTBF, stable 24/7 operation.
• Low Power Consumption: <3.5W typical power, reducing data center cooling and energy costs.

The COP-85400G-SR4 is a cutting-edge 400G QSFP-DD SR4 optical transceiver engineered to address the exponential bandwidth demands of modern data centers and cloud infrastructure. As a key component in 400G Ethernet networks, it enables seamless, high-density connectivity between switches, servers, and storage systems, delivering unprecedented speed and efficiency.

Leveraging advanced 850nm VCSEL array and PAM4 modulation, this module achieves 400Gbps aggregate bandwidth across four optical lanes. Compared to traditional NRZ modules, PAM4 technology doubles data capacity per channel, significantly increasing port density and reducing overall network costs.

Strictly compliant with IEEE 802.3cd and QSFP-DD MSA industry standards, the COP-85400G-SR4 ensures full interoperability with all major networking equipment vendors. It is pre-tested and compatible with a wide range of 400G switches, routers, and network interface cards (NICs), providing a hassle-free upgrade path to 400G.

Equipped with comprehensive DOM functionality, the module allows real-time monitoring of critical operational parameters including:

• Transmit & Receive Optical Power
• Module Temperature
• Supply Voltage
• Laser Bias Current

This proactive monitoring capability simplifies network diagnostics, reduces downtime, and enhances overall network reliability.

• Data Center Interconnect (DCI): High-speed 400G links between top-of-rack (ToR) switches and core switches.
• Cloud Computing Platforms: Connecting high-density servers and storage arrays in public/private cloud environments.
• High-Performance Computing (HPC): Supporting ultra-fast data transfers in scientific research and AI computing clusters.
• Enterprise Core Networks: Upgrading campus and enterprise core networks to 400G bandwidth.
• Hyper-Converged Infrastructure (HCI): Enabling low-latency, high-throughput connections in virtualized data centers.

All COP-85400G-SR4 modules undergo rigorous testing and quality control procedures, including optical performance validation, compatibility testing, and environmental stress testing. With RoHS compliance and Class 1 laser safety certification, it guarantees safe and stable operation in mission-critical network environments. Backed by a 3-year warranty and professional technical support, it provides long-term investment protection for your 400G network infrastructure.