The Extreme Networks 400G-DR4-QSFPDD500M is a high-capacity 400 Gigabit Ethernet optical transceiver optimized for single-mode fiber (SMF) deployments up to 500 meters. Utilizing 4x100G PAM4 signaling, this DR4 module supports efficient data transport in hyperscale cloud and enterprise networks. With a compact QSFP-DD form factor, it allows for dense port configurations and simplifies backbone upgrades in next-gen data centers.
Engineered for low latency and minimal signal loss, the DR4 supports point-to-point and breakout (4x100G) applications, making it an ideal choice for leaf-to-spine and top-of-rack connectivity. The hot-swappable design ensures ease of maintenance and quick installation, while its low power profile supports sustainable operations in power-sensitive environments.
Fully compliant with IEEE 802.3bs and supported across Extreme’s switching platforms, the 400G-DR4 module provides reliable, scalable, and cost-effective high-speed interconnects. Whether used for AI/ML clusters, cloud backbones, or core switching, it delivers uncompromised speed, signal integrity, and operational efficiency for modern data center topologies.