200G QSFP56 SR4 Optical Transceiver Module for Data Center Networks

QSFP56-200GB-SR4

The QSFP56-200G-SR4 is a high-speed parallel optical transceiver engineered for short-reach data center connectivity. Complying with the IEEE 802.3bs 200GBASE-SR4 standard and QSFP56 MSA specifications, it uses multi-mode fiber to achieve transmission distances of 70 meters over OM3 and 100 meters over OM4 fiber. With its 4×50Gb/s PAM4 architecture and Ethernet compatibility, this optical module seamlessly integrates into existing 200G network infrastructure, enabling efficient bandwidth expansion without requiring extensive hardware upgrades.

Product Highlights
*Built-in high-speed DSP chip, max power ≤6.5W
* Passed mainstream switch compatibility testing
*Hot-pluggable QSFP56 form factor
*Compliant with IEEE 802.3bs 200GBASE-SR4 standard
*Supports 4x50G PAM4 modulation, 200GAUI-4 interface
*Integrated Digital Diagnostic Monitoring (DDM)
*Complies with Class 1 laser safety standard
*70m over OM3 fiber, 100m over OM4 fiber
*Operating temperature: 0°C ~ +70°C

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200G QSFP56 SR4 Overview（QSFP56 Double Fiber Multimode, 200G, 850nm, 100m, MTP/MPO, DDM）

The compatible 200G QSFP56 SR4 optical transceiver is designed for high-density data center networks requiring reliable 200G Ethernet connectivity.Supporting transmission distances up to 100 meters over OM4 multimode fiber, the module is ideal for spine-leaf architectures, cloud infrastructure, enterprise data centers, and HPC environments.Compliant with IEEE 802.3bs and QSFP56 MSA standards, it delivers stable performance, low latency, and seamless interoperability with mainstream networking platforms.

Product Details

Part Number：QSFP56-200GB-SR4

Description：QSFP56 optical module dual-fiber multimode, 200G, MTP/MPO, working temperature 0~70℃, 850nm, 100M, DDM

Compatible with：H3C, HW, Cisco, HP, etc

Data Rate	Module Type	Distance	Wavelength	Interface	Temperature	DDM
200Gb/s	QSFP56	100M	850nm	MTP/MPO	0~70℃	Yes

Specifications

Model number	QSFP56-200GB-SR4	Brand	Firstoptic
Form Factor	QSFP56	Max. Data Rate	200Gbps
Wavelength	850nm	Max. Cable Distance	70m@OM3/100m@OM4
Connector	MPO-12/UPC	Media	MMF
Transmitter Type	VCSEL	Receiver Type	PIN
TX Power	-3~3dBm	Minimum Receiver Power	-6.5dBm
Power Budget	3.5dB	Receiver Overload	5dBm
Typical Power Consumption	≤5W	Extinction Ratio	3dB
DDM/DOM	Supported	Commercial Temperature Range	0 to 70°C (32 to 158°F)
Core Size	50um	Modulation	4x50G-PAM4
Protocols	IEEE 802.3bs, QSFP56 MSA, SFF-8665, CMIS Rev 4.0, RoHS 10	Warranty	3 Years

Certification system

Please Note: Installing a third party transceiver does not void your network equipment warranty. Network equipment manufacturers all have guidelines stating that warranty support on their products will not be affected.

200G QSFP56-SR4 spine leaf network architecture using MPO-12 OM4 fiber trunk

200G QSFP56 SR4 for Spine-Leaf Data Center Networks

Modern data centers rely on Spine-Leaf architectures to provide scalable and low-latency connectivity between servers, storage systems, and switches. The 200G QSFP56 SR4 optical transceiver is designed to support high-bandwidth east-west traffic while maintaining reliable performance in dense network environments.

Compliant with the 200GBASE-SR4 standard, this 200G QSFP56 SR4 module delivers up to 100 meters transmission over OM4 multimode fiber using MPO-12 connectivity. Its high-density design helps reduce cabling complexity and enables efficient deployment in cloud computing, enterprise networking, and hyperscale data center infrastructures.

High-Bandwidth 200G Data Center Interconnect Solutions

As network traffic continues to grow, data center operators require higher-speed interconnect solutions between aggregation switches, core switches, and server clusters. The 200G QSFP56 SR4 optical transceiver provides a cost-effective upgrade path for modern Ethernet networks without requiring extensive infrastructure changes.

Supporting 4×50G PAM4 modulation and operating over OM3 and OM4 multimode fiber, this 200G multimode optical module delivers stable performance for high-density switch deployments. It is widely used in cloud data centers, enterprise campuses, HPC environments, and large-scale storage networks requiring reliable 200G Ethernet connectivity.

200G QSFP56 SR4 optical transceiver connected with MPO-12 OM4 fiber cable for 200G Ethernet switch interconnect

Quality Assurance and Compatibility Testing

Before shipping, we conduct rigorous product testing, including the testing of 200G QSFP56 multimode optical modules, to ensure that every product meets the high quality standards. We are committed to providing the most reliable and highest quality optical fiber communication products, to bring excellent performance and stability to our customers.

200G QSFP56-SR4 optical transceiver signal and performance testing equipment

Test Equipment

200G QSFP56-SR4 compatibility testing on Arista Ethernet switch platform

Compatible Test

200G QSFP56-SR4 environmental reliability and temperature chamber testing

Environmental Reliability Test

High Compatibility for all Brands

The company sells a full line of QSFP56 optical module optical fiber products compatible with all major brands of equipment.

200G QSFP56-SR4 optical transceiver compatibility with Cisco Arista NVIDIA Huawei H3C Juniper and other major brands

FAQ Section

Q1: What is a 200G QSFP56 SR4 optical transceiver?

A 200G QSFP56 SR4 optical transceiver is a high-speed 200 Gigabit Ethernet module designed for short-reach data center connectivity. It complies with the IEEE 802.3bs 200GBASE-SR4 standard and uses 850nm VCSEL technology to transmit data over multimode fiber.

Q2: What fiber is required for a 200GBASE-SR4 transceiver?

The 200GBASE-SR4 transceiver requires OM3 or OM4 multimode fiber with an MPO-12/UPC connector. For optimal performance and maximum transmission distance, OM4 fiber is recommended.

Q3: What is the transmission distance of QSFP56-200G-SR4?

The QSFP56-200G-SR4 supports transmission distances up to 70 meters over OM3 multimode fiber and up to 100 meters over OM4 multimode fiber, making it ideal for high-density data center environments.

Q4: What devices are compatible with 200G QSFP56 SR4 modules?

200G QSFP56 SR4 optical modules can be programmed for compatibility with major network equipment vendors, including Cisco, Arista, NVIDIA, Juniper, Huawei, H3C, Dell, and HPE platforms.

Q5: What is the difference between QSFP56 SR4 and QSFP56 DR4?

QSFP56 SR4 uses multimode fiber and supports transmission distances up to 100 meters over OM4 fiber, while QSFP56 DR4 uses single-mode fiber and supports transmission distances up to 500 meters. SR4 is typically used for intra-data-center links, while DR4 is preferred for longer-reach data center interconnects.

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