Product Overview

• The KCO-QDD-400G-SR8-S 400GBASE-SR8 module features an MTP/MPO-16 connector, supporting links up to 100m over parallel OM4 multi-mode fiber.
• Fully compliant with the IEEE 802.3bs protocol and the 400GAUI-8/CEI-56G-VSR-PAM4 standard.
• Carried over eight wavelengths managed inside the device, supporting multiplexing/demultiplexing, and operates with 2x 200G-SR4 and 8x 50G-SR breakouts.
• Delivers up to 100m transmission distance, allowing high-speed interconnects between adjacent racks and supporting horizontal scaling for AIDC.
• Cisco Compatible QSFP-DD (Quad Small Form-Factor Pluggable – Double Density) Transceiver designed for operations over Multi-Mode Fiber (MMF) optical cabling.
• Converts 8x 50G PAM4 electrical input channels (each 53.125Gbps) into 8x independent PAM4 optical signals with a baud rate of 53.125 Gbps on the transmission side.
• Offers a minimum guaranteed optical budget of 1.9 dB, reaching up to 100m distance over OM5 multi-mode fiber.
• Equipped with a top-quality VCSEL (Vertical Cavity Surface Emitting Laser) (850 nm) transmitter and a 400Gb/s PIN photodiode receiver.
• Supports DDM/DOM optical diagnostics for real-time operating metrics, operates under standard temperature ranges (0°C to 70°C), and utilizes an MTP/MPO-16 interface.

The Cisco compatible KCO-QDD-400G-SR8-S QSFP-DD supports up to a 425 Gbps data rate and is designed for 400G Ethernet applications. This multipurpose Double Fiber optical transceiver module is key in modern enterprise networking, most notably within Internet Service Provider (ISP), Mobile Operator, and Data Center Core Networks.

Technical Specifications

Connectivity & Quality Testing

Applications