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Compatible 400GBASE-VR4 QSFP-DD Optical Transceiver for Cloud Data Centers
Product Highlights
*Optimized for AI networking and high-density 400G Ethernet deployments
*Supports up to 50m transmission over OM4 multimode fiber
*MPO-12 interface with 4×100G PAM4 optical lane architecture
*Ideal for spine-leaf networking and short-reach switch interconnects
*Compatible with major switch platforms including Cisco, Arista, NVIDIA and H3C
*Low power consumption design for efficient data center operation
*Fully compliant with IEEE and QSFP-DD MSA standards
Compatible 400G QSFP-DD VR4 Optical Transceiver Module (MMF, 850nm, 50m, MPO-12/APC, DOM)
Compliant with 400GBASE-VR4 specifications and QSFP-DD MSA standards, this 400G optical transceiver delivers stable performance, low latency, and efficient bandwidth utilization for modern AI and cloud data center networks.
Product Details
Part Number：QSFPDD-400G-VR4
Description：400G QSFP-DD VR4 optical transceiver, 850nm VCSEL, MPO-12/APC, OM4 MMF, 50m, DOM
Compatible with：Cisco, Arista, NVIDIA, Huawei, H3C, Juniper and other major switch platforms
Data Rate | Module Type | Distance | Wavelength | Interface | Temperature | DOM |
400Gb/s | QSFP-DD | 50M | 850nm | MPO-12/APC | 0~70℃ | Yes |
Specifications
| Form Factor | QSFP-DD | Data Rate | 425Gbps (4x106.25Gb/s) |
| Wavelength | 850nm | Max Distance | 100m (OM4) / 70m (OM3) |
| Connector | MPO-12/APC | Media | SFM |
| TX Power | -2.9 ~ 4.0dBm | RX Sensitivity | -5.9dBm |
| Power Budget | 3dB | Power Consumption | ≤10W |
| Operating Temp | 0 to 70°C (32 to 158°F) | DDM/DOM | Supported |
| Protocols | QSFP-DD MSA, IEEE 802.3bs, CMIS 4.1 | Warranty | 3 Years |
400G AI & Cloud Data Center Networks
This 400G optical transceiver supports efficient communication between GPU servers, AI switches, and distributed computing resources, helping improve network scalability and bandwidth utilization in modern data center deployments.
Spine-Leaf 400G Ethernet Networks
The 400G QSFP-DD VR4 optical transceiver is ideal for spine-leaf architectures requiring scalable 400G Ethernet connectivity between aggregation and access layers.
Supporting short-reach high-bandwidth links, this 400G optical transceiver helps optimize east-west traffic transmission for cloud, AI, and enterprise data center networks.
400GBASE-VR4 Optical Interconnect
The 400GBASE-VR4 optical transceiver supports up to 50m transmission over OM4 multimode fiber using MPO-12/APC connectivity.
The 400G QSFP-DD VR4 optical transceiver provides a cost-effective solution for switch-to-switch interconnects, high-density rack deployments, and short-distance 400G Ethernet networking environments.
Quality Assurance
Every 400G QSFP-DD VR4 optical transceiver undergoes rigorous validation and reliability testing before shipment to ensure stable performance in AI networking and high-density data center environments.
- Platform Validation: The 400G optical transceiver has been verified on major switch platforms including Arista, Cisco, NVIDIA, Huawei, H3C, and Juniper to ensure reliable interoperability.
- Performance Testing: 72-hour burn-in testing, temperature cycling (0°C–70°C), optical power verification, and BER validation (BER < 1E-12).
- Signal Integrity Testing: Each 400GBASE-VR4 module is individually validated to ensure stable PAM4 transmission, low latency, and consistent network performance.
Certifications: CE, FCC, RoHS compliant.
Warranty: 3-year warranty against manufacturing defects with lifetime technical support.
Test Equipment
Platform Validation
Environmental Reliability TestCompatibility & Platform Validation
- Arista 7060X4 / 7280R3 series
- Cisco Nexus 9000 series
- Huawei CloudEngine series
- H3C S12500 / S6800 series
- Juniper QFX5130 series
- Dell S5232F-ON series
Note: Installing a compatible transceiver does not void your network equipment warranty per major manufacturers' guidelines.
FAQ Section
Q1. What is a 400G QSFP-DD VR4 optical transceiver?
A:
The 400G QSFP-DD VR4 optical transceiver is a short-reach single-mode module designed for high-density 400G Ethernet connectivity inside modern data centers.
Q2. What transmission distance does 400GBASE-VR4 support?
A:
The module supports transmission distances up to 500 meters over OS2 single-mode fiber, making it suitable for intra-data-center connectivity.
Q3. What is the difference between 400G VR4 and 400G DR4?
A:
Both modules use four 100G PAM4 optical lanes and support single-mode fiber. VR4 is typically positioned as a cost-effective solution for shorter data center links, while DR4 is commonly used for broader 400G Ethernet deployments.
Q4. What fiber type is required for 400GBASE-VR4?
A:
The module uses OS2 single-mode fiber and an MPO-12/APC optical interface.
Q5. Is QSFP-DD-400G-VR4 suitable for cloud data centers?
A:
Yes. The module is designed for cloud infrastructure, data hall connectivity, switch aggregation, and modern spine-leaf architectures.
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