QSFP-DD 400GBASE-DR4 Transceiver - 400G PAM4 1310nm 500m SMF MPO-12 - Refurbished

QSFP-DD 400GBASE-DR4 Optical Transceiver Module

Save significantly on enterprise-grade 400G connectivity with this refurbished QSFP-DD DR4 transceiver from Reef Telecom. Backed by our industry-leading 10-year warranty, this module delivers reliable 400GBASE-DR4 performance for data centers, high-performance computing networks, and service provider applications.

Technical Specifications

• Data Rate: 400Gbps (4x 100G PAM4 lanes)
• Wavelength: 1310nm EML transmitter
• Reach: Up to 500m over single-mode fiber (SMF)
• Connector: MPO-12/APC (MTP compatible)
• Form Factor: QSFP-DD (Double Density)
• Standards: IEEE 802.3bs 400GBASE-DR4, QSFP-DD MSA, 400GAUI-8
• Modulation: PAM4 pulse amplitude modulation
• Monitoring: Digital Diagnostic Monitoring (DDM/DOM)
• Operating Temp: 0°C to +70°C (Commercial)

Key Features & Benefits

• Supports 4x 100G breakout to QSFP28 100G-DR modules
• Backward compatible with QSFP+, QSFP28, and QSFP56 ports
• Four parallel SMF channels optimize fiber utilization
• Hot-pluggable design for zero-downtime deployment
• FEC support for enhanced signal integrity

Ideal Applications

Deploy this 400G DR4 transceiver for data center spine-leaf interconnects, high-performance computing clusters, AI/ML training infrastructure, campus backbone links, and enterprise core-to-distribution connections. Simplify your cabling with parallel SMF over MPO-12 while achieving 400GbE throughput up to 500 meters.

Free shipping on orders over $300. Every refurbished transceiver from Reef Telecom includes our 10-year warranty and is fully tested for guaranteed performance. Bulk pricing available for large-scale deployments.