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100GBASE-SR4 QSFP28 Optical Transceiver Module for Data Center Networks
QSFP28-100G-SR4
The 100GBASE-SR4 QSFP28 optical transceiver supports up to 100m transmission over OM4 multimode fiber and 70m over OM3 fiber. Designed for spine-leaf data center networks, AI cluster connectivity, and high-density switch interconnects, this 100G multimode transceiver delivers reliable short-reach 100G Ethernet performance.
Product Highlights
*Supports 100G Ethernet transmission over OM4 multimode fiber up to 100m
*Supports transmission distances up to 70m over OM3 multimode fiber
*MPO-12 interface with 850nm VCSEL technology
*Designed for spine-leaf data center networks and AI cluster connectivity
*Supports 100G to 4×25G breakout deployment
*Fully compliant with IEEE 802.3bm and QSFP28 MSA standards
*Low power consumption design for high-density switch environments
*Digital Diagnostic Monitoring (DDM) support for real-time status monitoring
Product Highlights
*Supports 100G Ethernet transmission over OM4 multimode fiber up to 100m
*Supports transmission distances up to 70m over OM3 multimode fiber
*MPO-12 interface with 850nm VCSEL technology
*Designed for spine-leaf data center networks and AI cluster connectivity
*Supports 100G to 4×25G breakout deployment
*Fully compliant with IEEE 802.3bm and QSFP28 MSA standards
*Low power consumption design for high-density switch environments
*Digital Diagnostic Monitoring (DDM) support for real-time status monitoring
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100GBASE-SR4 Optical Transceiver for Short-Reach Data Center Connectivity
The QSFP28-100G-SR4 is a 100G QSFP28 multimode optical module designed for high-performance data center connectivity, delivering 100G QSFP28 multimode transmission up to 70 meters over OM3 and 100 meters over OM4 fiber. This 100G multimode solution utilizes an 850nm wavelength with an MTP/MPO-12 interface and supports breakout configurations to four independent 25G SFP28 ports. Fully compliant with 100GBASE-SR4, QSFP28 MSA, SFF-8636, IEEE 802.3bm, and CAUI-4 standards, this 100G QSFP28 multimode optical module incorporates an I2C-based digital diagnostic system for real-time monitoring of optical power, temperature, and link performance.100gbase-sr4100gbase-sr4100gbase-sr4100gbase-sr4100gbase-sr4100gbase-sr4100gbase-sr4100gbase-sr4100gbase-sr4100gbase-sr4
Product Details
Part Number：QSFP28-100G-SR4
Description：QSFP28 optical module dual-fiber multimode, 100G, MTP/MPO, working temperature 0~70℃, 850nm, 100M, DDM
Compatible with：Cisco, Arista, NVIDIA, Huawei, H3C, Juniper, Dell and other major networking platforms.etc
Data Rate | Module Type | Distance | Wavelength | Interface | Temperature | DDM |
100Gb/s | QSFP28 | 100M | 850nm | MTP/MPO | 0~70℃ | Yes |
Specifications
Model number | QSFP28-100GB-SR4 | Brand | Firstoptic |
Form Factor | QSFP28 | Max. Data Rate | 103.125Gbps (4x 25.78Gbps) |
Wavelength | 850nm | Max. Cable Distance | 70m@OM3/100m@OM4 |
Connector | MTP/MPO-12 Male | Media | MMF |
Transmitter Type | VCSEL | Receiver Type | PIN |
TX Power | -8.4~2.4dBm | Minimum Receiver Power | -10.3dBm |
Power Budget | 1.9dB | Receiver Overload | 2.4dBm |
Typical Power Consumption | ≤2.5W | Extinction Ratio | >2dB |
DDM/DOM | Supported | Commercial Temperature Range | 0 to 70°C (32 to 158°F) |
Core Size | 50um | Modulation | NRZ |
Protocols | QSFP28 MSA, SFF-8636, IEEE 802.3bm, CAUI-4 | 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.
Application Scenarios
AI GPU Cluster Connectivity
Deploy the 100G QSFP28 SR4 optical module for GPU cluster interconnects and AI networking environments. Supports low-latency communication between AI servers and Ethernet switches over OM4 multimode fiber.
For short-reach in-rack and adjacent-rack deployments, the module delivers reliable 100G connectivity while helping reduce cabling complexity in high-density AI clusters.
Spine-Leaf Data Center Networks
The 100GBASE-SR4 optical transceiver is widely used in spine-leaf data center architectures and can be deployed together with MPO-12 OM4 fiber patch cords for high-density switch interconnects.
Supporting transmission distances up to 100m over OM4 fiber, the module provides a cost-effective solution for east-west traffic inside modern cloud and enterprise data centers.
High-Density Server Access
Supports 100G to 4x25G breakout connectivity for server access networks, enabling flexible migration from 25G to 100G Ethernet infrastructure.
The 100G QSFP28 SR4 optical module is commonly used in high-density server environments where scalability, bandwidth efficiency, and simplified network expansion are critical.
Features
Before shipping, we conduct rigorous product testing, including the testing of 100G QSFP28 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.
Test Equipment
Compatible Test
QC TestHigh Compatibility for all Brands
The company sells a full line of QSFP28 optical module optical fiber products compatible with all major brands of equipment.
FAQ Section
Q1: What fiber type is required for a 100G QSFP28 SR4 optical module?
The 100G QSFP28 SR4 optical module operates over multimode fiber and is typically deployed with MPO-12 OM3 or OM4 fiber patch cords.
Q2: What is the maximum transmission distance of 100GBASE-SR4?
The module supports up to 70m over OM3 fiber and up to 100m over OM4 fiber.
Q3: Can a 100G QSFP28 SR4 module support breakout connectivity?
Yes. The module supports 100G to 4×25G breakout applications when used with compatible breakout cabling and switch platforms.
Q4: What applications are suitable for a 100G QSFP28 SR4 optical module?
Typical applications include:
- Spine-leaf data center networks
- AI cluster connectivity
- High-density switch interconnects
- Cloud data center infrastructure
Q5: What is the difference between SR4 and LR4 optical modules?
SR4 uses multimode fiber with an MPO-12 interface and supports short-reach transmission up to 100m. LR4 uses single-mode fiber with a duplex LC interface and supports transmission distances up to 10km.
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