AddOn Cisco QDD-400-CU1M-AO 400GBase-CU QSFP-DD to QSFP-DD PAM-4 Passive Copper Direct Attach Cable

AddOn Cisco® QDD- 400-CU1M Compatible TAA Compliant 400GBase-CU QSFP-DD to QSFP-DD PAM-4 Direct Attach Cable (Passive Twinax, 1m)

The AddOn Cisco QDD-400-CU1M-AO is a high-performance 400GBase-CU QSFP-DD to QSFP-DD direct attach cable designed for data center and high-speed network applications. Operating over passive copper with a maximum reach of 1.0 meter (3.3 feet), this twinaxial cable provides reliable, low-latency connections essential for demanding environments. It is fully programmed, uniquely serialized, and has undergone rigorous data-traffic and application testing to ensure full compliance and optimal functionality. Built to meet TAA (Trade Agreements Act) standards and compliant with MSA (Multi-Source Agreement) specifications, this cable guarantees compatibility with a broad range of network equipment. Its robust construction and excellent EMI/EMC performance make it suitable for environments where signal integrity is critical.Designed with advanced manufacturing techniques, the AddOn QDD-400-CU1M-AO features dual-side pre-solder automation, ensuring consistent quality and durability. The cable's low-loss design and flexible construction contribute to its ease of installation and long-term reliability. It supports high data rates of 25G and 50G per channel using PAM-4 modulation, making it ideal for high-speed data transfer applications. Additionally, the cable includes an I2C interface for EEPROM communication and a pull-to-release latch for secure connections, simplifying maintenance and deployment.This cable adheres to the latest industry standards, including QSFP-DD MSA Specification Rev 3.4, SFF-8679 electrical interface, and SFF-8636 management interface support. Its compliance with IEEE 802.3 Bj and IEEE 802.3 CD standards ensures compatibility with a wide range of Ethernet and networking equipment. The product is environmentally friendly, RoHS compliant, and manufactured in the United States. AddOn confidently backs this product with a limited lifetime warranty, making it a reliable choice for mission-critical network infrastructure.Whether upgrading existing systems or deploying new high-speed networks, the AddOn Cisco QDD-400-CU1M-AO offers a high-quality, compliant, and flexible copper cable solution designed to meet the demands of modern data centers and enterprise environments.

Features:

• Compliant with QSFP-DD MSA Specification Rev 3.4

• SFF-8679 electrical interface compliant

• SFF-8636 management interface support

• Supports IEEE802.3Bj, IEEE802.3By, IEEE802.3CD standards

• Supports 25G and 50G electrical data rates per channel using PAM-4 modulation

• I2C interface for EEPROM communication

• Pull-to-Release latch design for secure connection

• Excellent EMI/EMC performance with 360-degree cable shield termination

• Manufactured with dual-side pre-solder automated assembly technologies

• Low-loss design with enhanced mechanical strength and flexibility