As the demand for cloud computing, AI, and big data applications continues to grow, data centers require faster, more reliable, and energy-efficient interconnect solutions. The emergence of 400G Direct Attach Cables (DACs) represents a major leap forward in supporting ultra-high bandwidth requirements while optimizing operational efficiency. Designed for short-range, high-speed connectivity, 400G DACs are transforming the landscape of next-generation data centers.
What is a 400G DAC?
A 400G Direct Attach Cable (DAC) is a high-speed, cost-effective interconnect solution commonly used for short-distance transmission within data centers, typically up to 5 meters. It uses twinax copper cable with integrated transceivers at both ends, eliminating the need for separate optical modules and patch cables. This plug-and-play solution offers low latency, low power consumption, and excellent signal integrity for high-performance environments.
Advantages of 400G DAC in Modern Data Centers
Ultra-High Bandwidth
400G DACs deliver blazing-fast data rates of 400 Gigabits per second, ideal for handling large-scale workloads such as AI training, video streaming, and real-time analytics.
Low Power Consumption
Compared to active optical cables (AOCs), DACs consume less power (typically <3W per end), reducing data center energy usage and lowering operating costs.
Reliable and Low Latency Connections
DACs offer low bit error rates and minimal latency, making them perfect for high-performance computing (HPC) and mission-critical applications.
Cost-Effective Deployment
With no need for additional optical transceivers, 400G DACs provide a budget-friendly alternative for short-distance server, switch, and router interconnections.
Easy Installation & Maintenance
As a pre-terminated solution, DACs simplify cabling infrastructure and reduce installation time, which is critical in high-density environments.
Applications of 400G DAC
Data Center Interconnects (DCI)
Top-of-Rack (ToR) to Spine Switch Connections
Server-to-Switch Links in High-Density Racks
AI & Machine Learning Clusters
Edge Computing Environments
Why 400G DAC is Essential for the Future
With the arrival of 800G and beyond, 400G is the stepping stone for data centers looking to scale. Investing in 400G DACs ensures your infrastructure can handle increasing data loads, support next-gen applications, and maintain competitive performance levels in a rapidly evolving digital world.
Why Choose 3Coptics Group?
Industry Expertise – 3Coptics Group has years of experience in high-speed interconnect technology, delivering solutions trusted by global data centers.
Performance Guaranteed – Our 400G DACs are fully compliant with QSFP-DD MSA and IEEE 802.3bs standards, ensuring peak performance and interoperability.
Custom Solutions – We offer tailored cable lengths, shielding options, and configurations to meet your specific deployment needs.
Competitive Pricing – Get enterprise-grade performance at cost-effective pricing, suitable for large-scale infrastructure rollouts.
Responsive Support – Need assistance? Our expert team provides technical support, fast response times, and after-sales service.
Empower your data center with the speed and stability of 400G DACs. Contact 3Coptics Group today to learn how we can support your next-generation network infrastructure.
