AddOn QDD-400G-LR4 400GBase-LR4 QSFP-DD Transceiver
The AddOn QDD-400G-LR4 QSFP-DD transceiver is engineered for organizations requiring high-performance, long-reach 400G optical connectivity. This 400GBase-LR4 module delivers 400 gigabits per second throughput over single-mode fiber (SMF) at distances up to 10km, making it ideal for data center interconnects, campus networks, and enterprise backbone deployments. Built as a 100% compatible alternative to Arista Networks® QDD-400G-LR4-AR, this TAA-compliant transceiver integrates seamlessly into existing infrastructure while providing superior cost efficiency. With integrated digital optical monitoring (DOM), real-time performance visibility, and LC connector compatibility, the AddOn QDD-400G-LR4 ensures reliable, future-ready 400G networking.
Key Features
- 400GBase-LR4 protocol support for 400 gigabit per second data rates
- 10km transmission distance over single-mode fiber (SMF)
- 1310nm wavelength optimized for long-reach optical links
- LC duplex connector for standard fiber infrastructure
- Digital optical monitoring (DOM) for real-time parameter access
- 100% compatible with Arista Networks® QDD-400G-LR4-AR transceivers
- TAA compliant for government and enterprise procurement
- Hot-pluggable QSFP-DD form factor for flexible deployment
- Low power consumption and extended operating temperature range
Technical Specifications
| Specification |
Value |
| Manufacturer |
ADD-ON |
| Part Number |
QDD-400G-LR4-AR-AO |
| Protocol |
400GBase-LR4 |
| Form Factor |
QSFP-DD |
| Data Rate |
400 Gbps |
| Wavelength |
1310nm |
| Transmission Distance |
10km |
| Fiber Type |
Single-Mode Fiber (SMF) |
| Connector Type |
LC Duplex |
| Digital Optical Monitoring |
Yes |
| Compliance |
TAA Compliant |
| Compatible With |
Arista Networks® QDD-400G-LR4-AR |
Frequently Asked Questions
What is a 400GBase-LR4 QSFP-DD transceiver used for?
A 400GBase-LR4 QSFP-DD transceiver enables ultra-high-speed optical connectivity for data center networks, campus interconnects, and enterprise WAN links. The 10km reach over single-mode fiber makes it perfect for connecting buildings, data centers, or network nodes within metropolitan areas while maintaining 400 gigabit per second throughput.
Is the AddOn QDD-400G-LR4 compatible with Arista equipment?
Yes, the AddOn QDD-400G-LR4 is 100% compatible with Arista Networks® QDD-400G-LR4-AR transceivers. It functions identically in Arista switches and routers, providing the same performance and reliability at a lower cost.
What does TAA compliance mean for this transceiver?
TAA (Trade Agreements Act) compliance ensures the AddOn QDD-400G-LR4 meets U.S. government procurement standards. This certification is essential for federal agencies, contractors, and organizations requiring compliant IT hardware for sensitive projects.
How does digital optical monitoring benefit network operations?
Digital optical monitoring (DOM) on the AddOn QDD-400G-LR4 provides real-time access to critical operating parameters including optical power levels, temperature, and voltage. This enables proactive network management, faster troubleshooting, and predictive maintenance to prevent downtime.
