Category
Compatible 400GBASE-SR8 QSFP-DD Optical Transceiver Module for Data Center Networks
Product Highlights
*Optimized for AI networking and 400G Ethernet data center deployments
*Supports spine-leaf network architecture and GPU cluster interconnects
*Up to 100m transmission over OM4 multimode fiber
*QSFP-DD hot-pluggable form factor with MPO-16/APC interface
*Compatible with major switch platforms including Arista, Cisco, NVIDIA and H3C
*Low power consumption design for high-density switch environments
*Fully compliant with IEEE 802.3cm and QSFP-DD MSA standards
400G QSFP-DD SR8 Specifications for AI & Data Center Networks
Product Details
Data Rate | Module Type | Distance | Wavelength | Interface | Temperature | DOM |
400Gb/s | QSFP-DD | 100M | 850nm | MPO-12/APC | 0~70℃ | Yes |
Specifications
| Arista Networks Compatible | QSFP-DD-400G-SR8 | Vendor Name | Firstoptic |
| Form Factor | QSFP-DD | Max Data Rate | 400Gbps |
| Wavelength | 850nm | Max Cable Distance | 70m@OM3/100m@OM4 |
| Connector | MPO-16/APC | Media | MMF |
| Transmitter Type | VCSEL 850nm | Receiver Type | PIN |
| TX Power | -6.5~4dBm | Minimum Receiver Power | -8.4dBm |
| Power Budget | 1.9dB | Receiver Overload | 4dBm |
| Max Power Consumption | 10W | Extinction Ratio | 3dB |
| DDM/DOM | Supported | Commercial Temperature Range | 0 to 70°C (32 to 158°F) |
| Modulation (Electrical) | 8x50G-PAM4 | Modulation (Optical) | 8x50G-PAM4 |
| DSP | TX and RX | Inbuilt FEC | No |
| Core Size | 50/125μm | Packaging Technology | COB |
| MTBF | 1671961 Hours (@40°C, 90% CL) | Application | 400G Ethernet |
| Protocols | QSFP-DD MSA, CMIS 4.0, IEEE 802.3cd | Warranty | 3 Years |
Application Scenarios
AI GPU Cluster Connectivity Applications
Deploy this 400G QSFP-DD SR8 optical transceiver for high-bandwidth GPU cluster interconnects and AI server networking in hyperscale AI infrastructure environments.
This 400G optical transceiver supports low-latency communication between GPU servers, AI Ethernet switches, and distributed computing fabrics, helping improve cluster efficiency and scalability.
Spine-Leaf 400G Ethernet Networks
Ideal for modern spine-leaf architecture requiring low-latency 400G Ethernet connectivity between high-density switches.
The 400G QSFP-DD SR8 optical transceiver enables scalable east-west traffic transmission and supports large-scale cloud and AI data center deployments.
400G SR8 Optical Interconnect
This 400G optical transceiver supports short-reach 400G connectivity inside data centers using OM4 multimode fiber and MPO-16/APC interfaces.
The 400G QSFP-DD SR8 optical transceiver is ideal for switch-to-switch links, high-density rack deployments, and low-latency 400G Ethernet environments.
Quality Assurance
Every 400G QSFP-DD SR8 optical transceiver undergoes rigorous validation and reliability testing before shipment to ensure stable performance in high-density AI and data center environments.
- Platform Validation: Verified on major switch platforms including Arista, Cisco, NVIDIA, Huawei, H3C, and Juniper for reliable interoperability.
- Performance Testing: 72-hour burn-in testing, temperature cycling (0°C–70°C), optical power verification, and BER validation (BER < 1E-12).
- 8-Lane Signal Integrity Testing: All SR8 transmit and receive lanes are individually validated to ensure stable PAM4 signal transmission and low-latency connectivity.
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.
Q1. What is a 400G QSFP-DD SR8 optical transceiver?
A:
The 400G QSFP-DD SR8 optical transceiver is a multimode optical module compliant with the IEEE 802.3cm 400GBASE-SR8 standard. It uses eight parallel optical lanes to provide 400Gbps Ethernet connectivity.
Q2. What transmission distance does 400GBASE-SR8 support?
A:
The module supports up to 100 meters over OM4 multimode fiber and up to 70 meters over OM3 multimode fiber.
Q3. What fiber type and connector are required for SR8 modules?
A:
The 400G QSFP-DD SR8 optical transceiver uses OM3 or OM4 multimode fiber and an MPO-16/APC optical interface.
Q4. Is QSFP-DD-400G-SR8 suitable for AI and GPU cluster networking?
A:
Yes. The module is widely deployed in AI clusters, GPU fabrics, machine learning infrastructure, and high-performance computing environments requiring low-latency 400G connectivity.
Q5. What is the difference between SR8 and DR4 optical transceivers?
A:
SR8 uses multimode fiber and is optimized for short-reach applications inside data centers, while DR4 uses single-mode fiber and supports longer transmission distances up to 500 meters.
Q6. Can QSFP-DD-400G-SR8 be deployed in spine-leaf architectures?
A:
Yes. The module is commonly used in spine-leaf data center networks, AI fabrics, cloud computing platforms, and high-density Ethernet switching environments.
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