400G QSFP56-DD AOC

Product Overview

The 400G QSFP56-DD AOC is a high-performance optical communication cable designed for short-reach multi-channel data communication and interconnection scenarios, offering high-bandwidth transmission, stable signal performance, and compliance advantages. This cable integrates eight independent data channels, each capable of operating stably at 53.125 Gbps over OM3 multimode fiber, with a maximum transmission distance of up to 70 meters, perfectly meeting the needs of short-reach high-speed interconnections in data centers, server clusters, and other environments. The product adopts a hot-pluggable QSFP DD form factor, is manufactured in strict accordance with CMIS standards, and complies with RoHS environmental requirements, combining reliable performance with regulatory compliance.

Core Technical Features

As a professional-grade high-speed optical communication cable, the 400G QSFP56-DD AOC is equipped with an 8-channel full-duplex transceiver module, enabling bidirectional high-speed data transmission. Each channel supports a data rate of up to 53 Gbps, utilizing an 8x53 Gbps PAM4 transmitter and receiver architecture to significantly enhance the data-carrying capacity of a single cable, satisfying the total bandwidth requirements of 400G. The cable incorporates an 8-channel 850 nm VCSEL array and an 8-channel PIN photodetector array, efficiently converting electrical signals to optical signals and vice versa, ensuring precise and stable signal transmission. Additionally, both the receiver and transmitter channels are equipped with internal CDR circuits, effectively compensating for signal loss and distortion during transmission, further improving signal quality.

Performance Parameter Details

1. Channel Configuration: 8-channel full-duplex transceiver module
2. Single-Channel Transmission Rate: Up to 53 Gbps
3. Signal Modulation Method: 8x53 Gbps PAM4 transmitter and PAM4 receiver
4. Optical Component Configuration: 8-channel 850 nm VCSEL array, 8-channel PIN photodetector array
5. Signal Compensation: Internal CDR circuits in both receiver and transmitter channels
6. Power Consumption Specifications: Generation 1 <9 W, Generation 2 <7 W per end
7. Form Factor: Hot-pluggable QSFP DD form factor, compliant with CMIS standards
8. Transmission Distance: Up to 70 meters over OM3 multimode fiber; up to 100 meters over OM4 multimode fiber with FEC
9. Operating Temperature: 0°C to +70°C
10. Supply Voltage: 3.3 V
11. Compliance Standards: Compliant with RoHS standards

Key Product Advantages

1. Ultra-High Bandwidth Transmission: Eight channels transmit in parallel, with each channel reaching 53 Gbps, delivering a total bandwidth of up to 400G, meeting the massive high-speed interconnection demands of high-density data centers, server clusters, and similar scenarios.
2. Flexible Adaptation to Different Fiber Environments: Achieves stable transmission up to 70 meters over OM3 multimode fiber, and extends transmission distance to 100 meters when paired with FEC-enabled OM4 multimode fiber, accommodating various short-reach interconnection scenarios.
3. Low-Power Energy-Saving Design: The second-generation product consumes less than 7 W per end, significantly reducing energy consumption compared to traditional cables of the same class, effectively lowering overall operational costs for data centers over time.
4. Stable Signal Assurance: Built-in CDR circuits and specialized optical component arrays efficiently compensate for signal loss and suppress distortion, ensuring signal stability and accuracy over long distances and reducing data transmission error rates.
5. Compliance and Compatibility: Featuring a hot-pluggable QSFP DD form factor and conforming to CMIS standards, it is compatible with mainstream device interfaces while also meeting RoHS environmental standards, satisfying compliance requirements in most regions worldwide.
6. Wide-Temperature Stable Operation: Supports an operating temperature range of 0°C to +70°C, adapting to diverse environmental conditions such as data center machine rooms and ensuring year-round stable equipment operation.

Core Product Value

1. Ultra-high bandwidth at the 400G level, meeting the massive high-speed data transmission needs of short-reach scenarios and enhancing the overall operational efficiency of data centers and server clusters.
2. Low-power design significantly reduces energy consumption, helping enterprises cut long-term operating costs and aligning with the trend toward green data center construction.
3. Adaptability to multiple fiber environments and wide-temperature operation capabilities improve the product’s applicability across different scenarios, reducing deployment constraints.
4. Standardized design and standardized interfaces simplify equipment integration processes, lower system integration complexity, and ensure global deployability of the equipment.

Target Customer Groups

Data center construction operators, server equipment manufacturers, cloud computing service providers, network equipment integrators, enterprise IT infrastructure service providers, and telecommunications operator data center departments.

Application Scenarios

This product is primarily used in short-reach multi-channel data communication and interconnection scenarios, specifically including high-speed interconnections between servers and storage devices within data centers, link connections among nodes inside server clusters, short-reach high-speed communications between network switches and core equipment, and intra-rack interconnections in cloud computing data centers. With its ultra-high bandwidth, stable transmission, and low-power characteristics, it can effectively boost the overall data processing efficiency of data centers, ensure rapid flow of massive amounts of data, and reduce energy consumption in machine rooms.

Solving Industry Pain Points

1. Addresses the pain point of insufficient bandwidth in traditional short-reach interconnection cables, which cannot meet 400G-level data transmission demands, thereby helping data centers enhance their data processing capabilities.
2. Alleviates the issue of excessively high power consumption in ordinary high-speed cables, leading to rising energy costs in data centers, by adopting a low-power design that cuts long-term operating expenses.
3. Overcomes the limitation of some cables being adaptable only to specific fiber types and having restricted transmission distances, supporting both OM3 and OM4 multimode fiber environments and accommodating more scenario requirements.
4. Avoids the problem of poor compatibility due to non-standard interfaces and high system integration difficulty by adopting standardized QSFP DD interfaces and adhering to CMIS standards, simplifying equipment integration processes.
5. Solves the challenge of certain cables being unable to adapt to wide-temperature environments, resulting in unstable operation under high room temperatures, ensuring stable operation within the 0°C to +70°C range.

Common Questions FAQ

Q1: What is the maximum transmission distance of the 400G QSFP56-DD AOC?
A: In an OM3 multimode fiber environment, the maximum link length is 70 meters; when paired with FEC-enabled OM4 multimode fiber, the maximum link length can reach 100 meters.
Q2: What is the power consumption of this cable?
A: The first-generation product has a total power consumption below 9 W, while the second-generation product features optimized energy-saving design, with power consumption below 7 W per end, delivering even better energy efficiency.
Q3: Does this product support hot plugging?
A: Yes, the product adopts a hot-pluggable QSFP DD form factor, allowing plug-and-play operations during equipment operation without needing to shut down the device to replace or expand cables.
Q4: Which devices is this cable compatible with?
A: The product complies with CMIS standards and uses standardized QSFP DD interfaces, making it compatible with mainstream servers, storage devices, network switches, and other equipment featuring QSFP DD interfaces, offering broad compatibility.
Q5: Does this product meet environmental requirements?
A: Yes, the product strictly complies with RoHS standards, containing no harmful substances such as lead or mercury, thus satisfying environmental compliance requirements in most regions worldwide.