Item Spotlights
Ciena 180-3530-900 Compatible 400G DCO QSFP-DD DWDM Tunable Coherent ≤40km Unamplified DDM/DOM Duplex LC SMF Optical Transceiver Module (SMF, Coherent, LC, DOM, ZR)
NADDOD Ciena 180-3530-900 Compatible QSFP-DD 400G ZR is a C-band, frequency-tunable coherent optical transceiver. It integrates a 7 nm coherent DSP ASIC with best-in-class ultra-narrow linewidth tunable lasers, high-speed modulators, and high-responsivity coherent receivers to deliver high performance using 400G DP-16QAM modulation. The module is designed for 400G DWDM data center interconnect (DCI) applications, supporting up to 40 km unamplified transmission without inline chromatic dispersion compensation.
The QSFP-DD 400G ZR is widely deployed in hyperscale data centers to enable high-performance edge interconnection. It supports multiple network topologies, including point-to-point, star, and ring architectures.

The QDD-400G-ZR boasts distinct strengths in transmission distance, deployment flexibility, rate efficiency, and reliability — perfectly meeting the demands of data center campuses and metro network edges.
The QDD-400G-ZR reuses existing optical fibers to boost bandwidth, eliminating the need for re-laying and avoiding high cabling costs; its long-haul transmission reduces the use of repeaters/amplifiers, thereby simplifying network architecture while cutting capital and operational expenses.