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Compatible 400G QSFP112 DR4 Optical Transceiver Module for High-Density Ethernet Switching

QSFP112-400G-DR4
The 400G QSFP112 DR4 optical transceiver is designed for high-density single-mode 400G Ethernet switching environments. Supporting 400GBASE-DR4 transmission up to 500m over OS2 single-mode fiber, this QSFP112 optical transceiver enables scalable bandwidth growth, efficient switch connectivity, and reliable deployment in modern cloud and data center networks.

Product Highlights
*Optimized for high-density single-mode 400G Ethernet switching
*Supports 400GBASE-DR4 transmission up to 500m over OS2 single-mode fiber
*MPO-12/APC interface with 4×100G PAM4 optical lane architecture
*Ideal for cloud data centers, aggregation networks, and high-capacity switching platforms
*Compatible with major switch vendors including Cisco, Arista, NVIDIA, Huawei, and H3C
*Low power consumption design for efficient network operation
*Fully compliant with IEEE 802.3bs and QSFP112 MSA standards
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Generic Compatible 400G QSFP112 DR4 PAM4 Transceiver (SMF, 1310nm, 500m, MPO-12/APC, DOM)

The 400G QSFP112 DR4 optical transceiver is designed for next-generation high-density Ethernet switching platforms requiring reliable single-mode 400G connectivity. Based on the 400GBASE-DR4 standard, the module supports transmission distances up to 500m over OS2 single-mode fiber through an MPO-12/APC interface.

As a QSFP112 optical transceiver, it enables increased port density, scalable bandwidth expansion, and efficient network growth for cloud data centers, aggregation layers, and high-capacity switching environments.

Product Details

Part Number:QSFP112-400G-DR4

Description:QSFP112 DR4 single-mode optical module, 400G, MPO-12/APC, working temperature 0~70℃, 1310nm, 500M, DOM

Compatible with: Cisco, Huawei, H3C, Arista, Juniper, Dell

Data Rate
Module Type
Distance
Wavelength
Interface
Temperature
DOM
400Gb/s
QSFP112
500M
1310nm

MPO-12/APC

0~70℃
Yes
 

Specifications

 
Form FactorQSFP112Data Rate425Gbps (4x106.25Gbps PAM4)
Wavelength1310nmMax Distance500m (OS2 SMF)
ConnectorMPO-12/APCMediaSFM
TX Power-2.9 ~ 4.0dBmRX Sensitivity-5.9dBm
Power Budget3dBPower Consumption≤10W
Operating Temp0 to 70°CDDM/DOMSupported
ProtocolsQSFP112 MSA, CMIS 5.0, IEEE Std 802.3ckWarranty3 Years

 

High-Density Single-Mode Switching

The 400G QSFP112 DR4 optical transceiver provides reliable single-mode 400G Ethernet connectivity for high-density switching environments. Supporting 400GBASE-DR4 transmission up to 500m over OS2 single-mode fiber, this QSFP112 optical transceiver enables scalable bandwidth growth and efficient switch-to-switch communication in modern network infrastructures.

400G QSFP112 DR4 optical transceiver switch-to-switch connectivity over MPO-12/APC OS2 single mode fiber
400G QSFP112 DR4 optical transceiver connecting 400G switch to high-speed NIC and AI server

Cloud Data Center Aggregation Networks

Designed for cloud data center aggregation networks, the 400G QSFP112 DR4 optical transceiver supports high-capacity traffic forwarding between aggregation and core switching layers. Built on 400GBASE-DR4 technology, this QSFP112 optical transceiver helps simplify network expansion while maintaining efficient single-mode 400G connectivity.

 

Scalable 400G Ethernet Expansion

The 400G QSFP112 DR4 optical transceiver enables scalable 400G Ethernet expansion for growing enterprise and cloud networks. With support for 400GBASE-DR4 transmission over OS2 single-mode fiber, the module provides a flexible solution for increasing network capacity without compromising performance or reliability.

400G QSFP112 DR4 to 800G QSFP-DD DR8 migration path using existing single mode fiber infrastructure

Quality Assurance
1. Platform Validation
Verified on major switch platforms including Arista, Cisco, NVIDIA, Huawei, H3C, and Juniper for reliable 400GBASE-DR4 interoperability.


2. Performance Testing
72-hour burn-in testing, temperature cycling (0°C–70°C), optical power verification, and BER validation (BER < 1E-12).


3. PAM4 Signal Integrity Testing
All 4 transmit and 4 receive lanes are individually validated to ensure stable 400GBASE-DR4 signal transmission over single-mode fiber.


4. Interoperability Testing
Validated with QSFP112 switch platforms, cloud data center interconnect environments, and high-density Ethernet networks.


Certifications: CE, FCC, RoHS compliant.
Warranty: 3-year warranty against manufacturing defects with lifetime technical support.

 
400g qsfp112 dr4 signal integrity and performance testingTest Equipment
400g qsfp112 dr4 compatibility validation on Arista 7060X4-32S switchPlatform Validation
400g qsfp112 dr4 environmental reliability testing at 70CEnvironmental Reliability Test
 
Compatibility & Platform Validation
The 400G QSFP112 DR4 optical transceiver is validated for deployment across high-density Ethernet switching, cloud data center interconnect, and next-generation single-mode network infrastructures.This QSFP112 optical transceiver delivers reliable interoperability with major switch vendors and 400GBASE-DR4 environments.
Validated Platforms:
  • Arista 7060X5 / 7800 series
  • Cisco Nexus 9000 series
  • NVIDIA Spectrum series
  • Huawei CloudEngine series
  • H3C S12500X series
  • Juniper QFX series
  • Dell PowerSwitch series

           400g qsfp112 dr4 compatibility with Cisco Arista NVIDIA Huawei H3C Juniper and Dell platforms

Note: Installing a compatible transceiver does not void your network equipment warranty per major manufacturers' guidelines.

FAQ Section

Q1: What is a 400G QSFP112 DR4 optical transceiver?

A 400G QSFP112 DR4 optical transceiver is a high-speed 400G Ethernet module that uses PAM4 modulation and MPO-12/APC connectivity to support up to 500m transmission over OS2 single-mode fiber. It is widely deployed in cloud data centers and high-density switching environments.


Q2: What fiber is required for a 400GBASE-DR4 QSFP112 optical transceiver?

The 400GBASE-DR4 QSFP112 optical transceiver requires OS2 single-mode fiber and an MPO-12/APC connector. For optimal performance, a Type B polarity MPO trunk cable is recommended.


Q3: What is the transmission distance of QSFP112-400G-DR4?

The QSFP112-400G-DR4 optical transceiver supports transmission distances up to 500 meters over OS2 single-mode fiber while maintaining reliable 400G Ethernet connectivity.


Q4: What devices are compatible with 400G QSFP112 DR4 modules?

400G QSFP112 DR4 modules are commonly compatible with major Ethernet switch platforms from Cisco, Arista, NVIDIA, Huawei, H3C, Juniper, and Dell, depending on the required coding and compatibility profile.


Q5: What is the difference between QSFP112 DR4 and QSFP112 SR4?

QSFP112 DR4 uses single-mode fiber and supports up to 500m transmission, while QSFP112 SR4 uses multimode fiber and typically supports up to 100m over OM4 fiber. DR4 is preferred for longer-reach data center interconnect applications.


Q6: Can a 400G QSFP112 DR4 network be upgraded to 800G in the future?

Yes. Many data center operators deploy 400G QSFP112 DR4 today and use it as part of a future 800G migration strategy. Proper fiber infrastructure planning can simplify future bandwidth upgrades and reduce deployment costs.


Q7: Is the 400G QSFP112 DR4 suitable for AI networking?

Yes. The 400G QSFP112 DR4 optical transceiver provides high-bandwidth, low-latency connectivity for AI clusters, cloud infrastructure, and next-generation data center networks requiring scalable Ethernet interconnects.

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