| Speed | 200G |
| Wavelength | 850nm |
| Max Distance | 70m on OM3/100m on OM4 |
| Connector | MTP/MPO-12(upc) |
| Fiber Type | Multi-Mode Fiber (MMF) |
Our 200G QSFP56 SR4 modules work with Nvidia,Cisco, Dell, and Arista switches right out of the box. No firmware changes needed,see the compatible list.
| NO. | Brand | Compatible P/N | Remarks |
| 1 | Cisco | QSFP-200G-SR4-S | |
| 2 | Arista | QSFP-200G-SR4 | |
| 3 | Dell | Q56-200G-SR4 | |
| 4 | Huawei | QSFP56-200G-SR4 | |
| 5 | Ruijie Networks | 200G-Q56-SR4-MM850 | |
| 6 | NVIDIA/Mellanox | MMA1T00-VS |
Ruijie RG-S6520 Series (Data Center leaf / Aggregation Switches):
RG-S6520-64QC (Features high-density ports that support 200G breakout/multi-rate configurations depending on slot layouts)
Ruijie RG-S6900 Series (Data Center Spine / Core Switches):
RG-S6920-4C / RG-S6980 Series (High-density 400G switches that accept 200G QSFP56 transceivers directly into backward-compatible QSFP-DD slots)
Ruijie RG-N18000-X Series (Flagship Modular Core Switches):
High-throughput line cards supporting multi-rate 200G/400G interfaces.
Ruijie's 200G-Q56-SR4-MM850 has a wide range of applications, primarily deployed in high-throughput enterprise networks and high-performance computing environments.
Ruijie RG-Newton Spine-and-Leaf Networks: Serving as high-bandwidth uplinks connecting dense leaf switches to high-capacity spine layers within corporate data centers.
AI & Machine Learning Cluster Fabrics: Connecting high-density GPU computing nodes to modern high-speed NVMe storage networks over RoCEv2 (RDMA over Converged Ethernet).
Enterprise High-Speed Intranet Trunks: Upgrading localized multi-mode structured backbone fiber networks within corporate server rooms to handle intensive virtualization and massive data synchronization.
Ruijie Compatible |
200G-Q56-SR4-MM850 | Vendor Name | HYTOPTODEVICE |
| Form Factor | QSFP56 | Max Data Rate | 200Gbps (4x50Gbps) |
| Wavelength | 850nm
|
Max Distance | 70m on OM3/100m on OM4 |
| Modulation Format | PAM4 | Host Required | FEC |
| Connector | MPO-12(UPC) | Voltage Supply | 3.3V |
| Cable Type | MMF | DDM Support | Yes |
| Transmitter Type | VCSEL 850nm | Receiver Type | PIN |
| TX Power | -6.5~+4.0dBm | Receiver Sensitivity | < -8.4dBm |
| Operation Temperature | 0 to 70°C (32 to 158°F) | Maximum Power | < 5W |
| Protocols | QSFP56 MSA, IEEE 802.3bs | Application | 200G Ethernet, High performance computing, Data Center Interconnect |



| Feature | QSFP56 SR4 | QSFP56 FR4 |
| Industry Standard | IEEE 802.3bs 200GBASE-SR4 | IEEE 802.3bs 200GBASE-FR4 |
| Fiber Type | Multi-Mode Fiber (MMF) (e.g., OM3 / OM4) | Single-Mode Fiber (SMF) (e.g., G.652) |
| Max Transmission Distance | 100m | 2km |
| Connector Type | MPO-12 (upc) | Duplex LC |
| Optical Wavelength | 850nm | CWDM (1271, 1291, 1311, 1331nm) |
| Optical Lanes | 4 parallel physical fiber lanes | 1 physical fiber pair (4 wavelengths multiplexed) |
| Primary Application | Inside the rack / Server-to-Switch | Between racks / Row-to-Row / Building-to-Building |
Q2: Can 200G SR4 module be inserted into a Ruijie 400G QSFP-DD port?A2: Yes. Ruijie's 400G QSFP-DD ports are backward-compatible. A QSFP56 transceiver can physically and electrically map into the lower-speed lane configurations of a QSFP-DD slot and will run natively at 200G.
Q3: What type of fiber cable is required for this 200G QSFP56 SR4 module?A3: It uses a Multi-Mode Fiber (MMF) cable with an MPO-12 (UPC) connector. the fibers with Duplex LC connector can not be used. they mismatch.
Unsupported Cable) and disable the port to protect signal integrity.HYTOPTODEVICE has supplied over 5000,000 optical transceiver modules to data centers, ISPs, and enterprise networks across 100+ countries since 2011. Every module undergoes a 72-hour burn-in test and full DDM/DOM validation before shipment.
"We replaced 200 Cisco-branded SFPs with HYTOPTODEVICE equivalents across our spine layer — zero compatibility issues, 40% cost reduction."— Network Architect, Tier-2 ISP, Germany
Quality Certification & Compliance:
At HYTOPTODEVICE, our quality commitment is backed by industry-standard validations. From fiber optical transceiver manufacturing to final inspection, our processes ensure global compliance and reliability.
We adhere to rigorous standards for our SFP modules and network solutions:
ISO 9001: Certified quality management and production consistency.
CE & FCC: Fully compliant for seamless Global Market Access.
RoHS: Committed to environmental responsibility and hazardous material control.
Proven Reliability: Rigorous testing to reduce compliance risk and ensure safety.
Certified Quality. Global Standards. Guaranteed Performance.






