Overview

The 400G QSFP-DD HYBRID VR8-AOC leverages GIGALIGHT’s patented Hybrid Active Optical Cable (Hybrid AOC) technology. Unlike traditional full-DSP optical modules, the HYBRID architecture employs DSP on only half of the channels, significantly reducing power consumption and latency.

While the HYBRID modules and AOCs draw inspiration from industry-standard LPO/LRO design approaches, they offer a more advanced strategy for precise system-level signal alignment. The HYBRID design methodology can be conceptually represented by the formula: HYBRID = (LTO + LRO) / 2

By applying hybrid interconnect technology, the 400G QSFP-DD VR8 AOC provides a next-generation upgrade to conventional solutions, delivering low insertion loss, high compatibility, and flexible deployment. It is optimized for high-density, cost-efficient data center interconnects, achieving superior transmission performance and operational efficiency.

Technical Highlights

• Ultra-Low Power Consumption: 6.6W, achieving a 20%–25% reduction compared with traditional 400G QSFP-DD AOC (<10W).
• Significant Cost Optimization: Approximately 21% lower overall cost compared to conventional DSP solutions.
• Extended Reach: Supports transmission up to 30 m over OM3 and 50 m over OM4 multimode fiber.
• Ultra-Low Link Latency: Link latency reduced by nearly 50% versus traditional DSP solutions.
• Superior Signal Quality: Designed to achieve pre-FEC BER of E-7/E-8 on OM4 50 m links.

Application Scenarios