400G QSFP112 SR4 Optical Transceiver – 850nm MPO MMF

SVNK 400G QSFP112 SR4 Optical Transceiver (100 m, MMF)

The SVNK 400G QSFP112 SR4 optical transceiver is a high-performance, short-reach module engineered to support 400 Gigabit Ethernet (400GbE) connectivity over multimode fiber (MMF) with transmission distances of up to 100 meters on OM4 fiber. Designed for modern data centers, cloud infrastructure, and high-performance computing environments, this transceiver delivers ultra-high-speed optical interconnects with excellent power efficiency and signal integrity.

Compliant with the QSFP112 Multi-Source Agreement (MSA) and IEEE 802.3db 400GBASE-SR4 standard, the module utilizes four parallel 100G PAM4 optical lanes operating at 850 nm, delivering an aggregate throughput of up to 425 Gb/s. On the electrical side, it supports a 400GAUI-4 retimed interface (4 × 100G PAM4), ensuring strong signal margins and stable system operation.

The optical engine integrates a high-performance VCSEL laser array and high-sensitivity photodiodes, optimized for short-reach multimode transmission. A high-density MPO-12 optical interface enables efficient parallel fiber connectivity, making the module ideal for high-bandwidth leaf-spine fabrics and AI-driven network architectures.

Housed in a compact, hot-pluggable QSFP112 Type-2 form factor, the transceiver supports high port density, efficient thermal performance, and low power consumption (<10 W). Built-in Digital Optical Monitoring (DOM/DDM) via an I²C management interface enables real-time diagnostics and proactive network monitoring.

Key Features

• Hot-pluggable QSFP112 Type-2 form factor
• Supports up to 425 Gb/s aggregate data rate
• Reach up to 100 m over OM4 multimode fiber
• 4 × 100G PAM4 optical lanes (SR4 architecture)
• 850 nm VCSEL-based transmitter array
• 4 × 100G PAM4 retimed 400GAUI-4 electrical interface
• MPO-12 optical connector
• Power dissipation < 10 W
• Single 3.3 V power supply
• Commercial operating temperature: 0°C to 70°C
• Fully compliant with QSFP112 MSA and IEEE 802.3db
• Integrated I²C management interface
• Built-in Digital Diagnostic Monitoring (DOM/DDM)
• RoHS compliant (lead-free)