Axiom QDD-400G-ZRP-S-AX 400G QSFP-DD 120 km LC | ZR+ DCO, Cisco — QDD-400G-ZRP-S-AX

Push 400G connectivity beyond the data center edge with a QSFP-DD ZR+ module designed for long-haul single-mode fiber transport. This Axiom-compatible optic pairs tunable DCO operation with LC duplex connectivity and 75 GHz C-band tuning, giving network teams the reach and wavelength control needed for metro aggregation, inter-campus links, and high-capacity backbone extensions. At 400GBASE-ZR+ class performance, this module is built for environments where short-reach optics fall short and transport economics matter. The 120 km reach supports demanding optical paths without adding unnecessary complexity, while the Cisco-compatible design helps preserve deployment flexibility in mixed-vendor infrastructure. For teams planning capacity growth, it offers a practical path to extend bandwidth without redesigning the fiber plant. Use it where long-distance 400G transport must stay predictable: between campuses, across metro rings, or into aggregation layers that need high throughput over single-mode fiber. The tunable architecture helps simplify wavelength planning, and the QSFP-DD form factor keeps integration aligned with modern high-density switching platforms. Ideal For Extend 400G connectivity between data center campuses over single-mode fiber Build metro aggregation links that require long-reach optical transport Connect backbone switches across carrier-style optical spans Support high-capacity inter-building links in enterprise and service provider networks Why This Product 1 Longer reach than typical 400G short-reach optics 2 Tunable C-band operation supports wavelength planning 3 QSFP-DD design fits high-density switching platforms 4 Cisco-compatible positioning supports mixed-vendor deployments