NADDOD offers a comprehensive range of 400G QSFP-DD transceivers, covering transmission distances from short-range (100m) to ultra-long-range (40km), including 400G QSFP-DD SR4, SR8, DR4, FR4, LR4, ER4, and more. 400G QSFP-DD transceivers are backward compatible with QSFP112, QSFP56, QSFP28, and QSFP+, offering flexibility for data center upgrades. NADDOD’s 400G QSFP-DD transceivers deliver high bandwidth, high port density, and low power consumption, making them perfect for demanding environments like HPC, AI Data Center (AIDC), Data Center Network (DCN), telecom, and wireless infrastructure. Fully compatible with leading devices from Cisco, Juniper, Dell, NVIDIA/Mellanox, Arista, etc, these 400G QSFP-DD transceivers provide scalable, cost-effective, and high-performance connectivity solutions for next-generation networking needs.