400G QSFP56-DD DAC

Product Overview

The 400G QSFP56-DD DAC is a high-performance, high-speed direct-attach copper cable designed specifically for 400G-level high-speed data transmission scenarios. It strictly complies with the QSFP-DD MSA, CMIS 4.0, and IEEE 802.3cd protocol standards, delivering stable high-speed transmission performance and excellent environmental adaptability. The product supports 8x56G HDR and 8x25G EDR transmission rates, features a hot-swappable design, incorporates low-power consumption solutions and an EMI-resistant structure, and can meet the stringent transmission requirements of data centers, network equipment clusters, and other environments. Additionally, it offers optional wire gauges from 26 to 30 AWG, with PVC or LSZH jacket options, supporting up to 3 meters of transmission distance, and can be customized into industrial-grade wide-temperature versions to suit more specialized operating conditions.

Core Technical Features

1. Protocol Compliance: Strictly adheres to QSFP-DD MSA, CMIS 4.0, and IEEE 802.3cd protocol standards, ensuring compatibility with various mainstream 400G network devices, guaranteeing standardized and stable data transmission, and preventing device compatibility issues caused by protocol mismatches.
2. Multi-Rate Support: Supports both 8x56G HDR and 8x25G EDR rate modes, flexibly adapting to different bandwidth requirements in various network scenarios, enabling seamless switching between 200G and 400G high-speed data transmission, and providing flexible options for network architecture upgrades.
3. Flexible Cable Configurations: Offers multiple wire gauge options ranging from 26 to 30 AWG, allowing users to select the appropriate gauge based on transmission distance, cabling space, and other needs; supports up to 3 meters of transmission distance, with optional PVC or LSZH jackets to meet diverse flame-retardant and protective requirements.
4. Hot-Swappable Design: Supports hot-swapping, enabling cable installation and replacement without shutting down equipment, significantly improving network equipment maintenance efficiency, reducing business interruption losses caused by equipment downtime, and ensuring continuous network operation.
5. Low Power Consumption and Anti-Interference: Employs a low-power design to effectively reduce operational energy consumption, while incorporating an EMI-resistant structure to minimize electromagnetic interference’s impact on data transmission, safeguarding data integrity and stability during high-speed transfers.
6. Wide-Temperature and Industrial-Grade Options: The standard version operates within a temperature range of 0°C to 70°C, with an industrial-grade version available to accommodate even more demanding high- and low-temperature environments, meeting the usage requirements of outdoor server rooms, industrial control systems, and other special settings.

Branch Product Types

In addition to the standard 400G QSFP56-DD DAC, several branch product types are available to meet diverse device connection needs:
- QSFP-DD to 2xQSFP56: Enables splitting one QSFP-DD port to connect two QSFP56 ports, suitable for hybrid networking scenarios involving single 400G devices and dual 200G devices, enhancing network architecture flexibility.
- QSFP-DD to 4xQSFP56: Supports connecting four QSFP56 ports from a single QSFP-DD port, catering to the connectivity needs of 400G core devices and multiple 200G edge devices, simplifying cabling structures and reducing networking costs.
- QSFP-DD to 8xSFP56: Allows splitting one QSFP-DD port to connect eight SFP56 ports, satisfying the networking requirements of 400G core devices and multiple 50G devices, ideal for high-density, multi-node network scenarios, and improving port utilization.

Core Advantages

1. High-Speed, Stable Transmission: Supports up to 8x56G HDR rates, enabling 400G-level high-speed data transmission, meeting the massive data transfer demands of big data, cloud computing, supercomputing, and other scenarios, with stable transmission and no packet loss.
2. Versatility Across Scenarios: Offers multiple wire gauge and jacket options, along with various branch product types, adaptable to different cabling spaces, environmental requirements, and network architectures, covering a wide range of use cases from ordinary server rooms to industrial environments.
3. Low Maintenance Costs: The hot-swappable design reduces equipment downtime for maintenance, low-power characteristics lower long-term operational energy costs, and protocol compliance ensures device compatibility, minimizing debugging and replacement expenses caused by compatibility issues.
4. Anti-Interference and Reliability: EMI-resistant design protects data transmission from electromagnetic interference, while wide-temperature designs and industrial-grade options enhance equipment reliability in complex environments, reducing the likelihood of failures.
5. Standardization and Compliance: Complies with international mainstream protocol standards, meeting the compliance requirements of most regions worldwide, supporting cross-border deployment and export needs.

Core Product Value

1. 400G high-speed transmission capability, meeting the massive data transfer demands of supercomputing centers, cluster networks, and other scenarios, boosting data processing and interaction efficiency.
2. Flexible product configurations and branch types, adapting to diverse network architectures, simplifying network cabling, and reducing networking costs.
3. Low power consumption and hot-swappable design, cutting maintenance costs and business interruption risks, enhancing network continuity and cost-effectiveness.
4. Wide-temperature and anti-interference features, ensuring stable operation in complex environments and expanding the scope of applicable scenarios.

Target Customer Groups

Manufacturers of 400G Ethernet devices, network switch producers, server vendors, router R&D companies, supercomputing center operators, big data center construction service providers, cluster network system integrators, and industrial network solution providers.

Application Scenarios

This product is widely used in various 400G-level high-speed network scenarios:
- 400G Ethernet: Serving as the core transmission cable, supporting high-speed data exchange in 400G Ethernet networks, ensuring sufficient network bandwidth to meet the demands of big data transmission, HD video streaming, and other services.
- Switch-to-Server Connections: Enabling high-speed data transfer between switches and servers, improving inter-device interaction efficiency within data centers, and ensuring smooth operation of cloud computing and cloud storage services.
- Router Interconnections: Used for high-speed link connections between core routers, building high-bandwidth backbone networks, and ensuring stable cross-regional and cross-node data transmission.
- Supercomputing Centers: Providing high-speed data transmission channels for supercomputer clusters, meeting the real-time data interaction needs of numerous tasks in supercomputing, thereby enhancing the computational efficiency of supercomputing systems.
- Cluster Networks: Suitable for high-performance computing clusters, AI training clusters, and similar scenarios, ensuring high-speed data synchronization among multiple nodes within the cluster and boosting overall cluster computational capabilities.
In addition, the industrial-grade version can also be applied to outdoor server rooms, industrial control networks, and other special scenarios, ensuring stable data transmission under extreme high- and low-temperature conditions.

Solving Industry Pain Points

1. Addressing the issue of poor protocol compatibility in traditional high-speed cables and difficulties adapting to 400G devices: This product strictly complies with mainstream protocols such as QSFP-DD MSA, seamlessly interfacing with various 400G network devices without requiring additional debugging for stable operation.
2. Improving the limitation of conventional high-speed cables having single configurations and failing to adapt to diversified networking needs: Offering multiple wire gauge and jacket options, along with various branch product types, allows flexible matching to different cabling spaces, environmental requirements, and network architectures, satisfying diverse connection needs from single nodes to multi-cluster setups.
3. Solving the problems of high power consumption and high maintenance costs associated with regular high-speed cables: Low-power design reduces long-term operational energy consumption, while hot-swappable design cuts equipment downtime for maintenance, significantly lowering network maintenance costs.
4. Avoiding the weakness of ordinary high-speed cables in resisting interference and their unstable transmission in complex environments: EMI-resistant design and wide-temperature options ensure stable data transmission even in environments with strong electromagnetic interference and significant temperature fluctuations, enhancing network reliability.

Frequently Asked Questions (FAQ)

Q1: What is the maximum transmission distance supported by the 400G QSFP56-DD DAC?
A: The product offers wire gauge options from 26 to 30 AWG, supporting up to 3 meters of transmission distance; users can choose the appropriate gauge based on actual cabling requirements.
Q2: Does this cable support hot-swapping?
A: Yes, the product features a hot-swappable design, allowing cable installation and replacement without shutting down equipment, improving equipment maintenance efficiency and reducing business interruption time.
Q3: Is there an industrial-grade version available?
A: The standard version operates within a temperature range of 0°C to 70°C, with an industrial-grade version also available to meet the demands of more severe high- and low-temperature environments and special application scenarios.
Q4: What scenarios is the branch product QSFP-DD to 8xSFP56 suitable for?
A: This branch product splits one 400G QSFP-DD port to connect eight 50G SFP56 ports, ideal for networking scenarios involving 400G core devices and multiple 50G edge devices, increasing port utilization and simplifying cabling structures.
Q5: Which protocol standards does the product comply with?
A: The product strictly complies with QSFP-DD MSA, CMIS 4.0, and IEEE 802.3cd protocol standards, ensuring compatibility with various mainstream 400G network devices.