DAC & AOC Solutions for Cost-Effective Short-Range Data Center Connections

Author:

Nancy

Short-range interconnections are the foundation of internal data center communication, and DAC and AOC are the core cabling solutions. This blog details the differences, application scenarios, and advantages of DAC (cost-effective, short-distance) and AOC (long-distance, low-power) cables, especially for 400G/800G network upgrades. 100Glight offers a complete series of high-speed DAC and AOC products compatible with major brand equipment, delivering cost-effective, stable, and efficient short-range interconnect solutions.

Within data centers, short-range interconnections form the physical backbone of rack-to-rack, switch-to-server, and leaf-to-spine connectivity. As networks upgrade to 400G and 800G, choosing the right cabling solution becomes critical to balancing performance, deployment speed, power efficiency, and total cost of ownership (TCO).

Two dominant options have emerged: Direct Attach Cables (DAC) and Active Optical Cables (AOC). DAC cables use passive electrical components and are ideal for short distances (up to 7 meters in 100G/400G systems), offering low latency and excellent cost efficiency. AOC cables, by contrast, integrate active optical components to transmit light signals, enabling longer reach (up to 100 meters) with lower power consumption and lighter weight—making them suitable for high-density, multi-rack deployments.

100Glight offers a full range of high-speed DAC and AOC products that support 100G, 200G, 400G, and 800G rates across popular form factors including QSFP28, QSFPDD, and SFP56. All products are fully compatible with major brand switches and routers, ensuring plug-and-play deployment without compatibility issues.

With a growing focus on data center operational efficiency, our cabling solutions are designed to simplify installation, reduce maintenance costs, and improve overall network reliability. For large cloud providers, we offer high-density AOC solutions that maximize rack space utilization. For enterprise data centers, our DAC products deliver cost-effective performance. Together, these cabling options help customers build efficient, scalable, and future-proof network infrastructures that align with evolving business needs.

High-Density Optical Interconnect for AI Clusters and Modern Data Centers

None

High-Density Optical Interconnect for AI Clusters and Modern Data Centers

None

Understanding 100G QSFP28 Compatible Transceivers: Essential Facts for Fiber Optic Communication

2026-09-02

Exploring the Advantages of High-Speed 100G QSFP28 Modules for Modern Networking Solutions

2026-09-01

Understanding the 100G QSFP28 Transceiver Module: Key Features and Applications

2026-08-31

100G QSFP28 Transceiver Module Helps Build Faster and More Reliable High-Speed Networks

2026-08-31