400G QSFP112 DR4 Optical Transceiver – 500m MPO SMF

SVNK 400G QSFP112 DR4 Optical Transceiver (500 m, SMF)

The SVNK 400G QSFP112 DR4 optical transceiver is a high-performance, hot-pluggable module engineered to support 400 Gigabit Ethernet (400GbE) connectivity over single-mode fiber (SMF) with transmission distances of up to 500 meters. Designed for next-generation data centers, cloud infrastructure, and enterprise networks, this transceiver delivers reliable ultra-high-speed optical interconnects with excellent power efficiency and signal integrity.

Compliant with the QSFP112 Multi-Source Agreement (MSA), IEEE 802.3bs 400GbE, and the 100G Lambda MSA, the module utilizes four parallel 100G PAM4 optical lanes operating in the 1310 nm window, providing 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 high-performance EML-based 1310 nm transmitters and high-sensitivity receivers, along with integrated DSP and retiming, enabling excellent tolerance to dispersion and thermal variation across short- to mid-reach SMF links. A high-density MPO-12 optical interface supports efficient parallel-fiber connectivity for modern high-bandwidth network architectures.

Housed in a compact QSFP112 Type-2A form factor, the transceiver supports high front-panel density, low power consumption (<8 W), and efficient thermal management. 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-2A form factor
• Supports up to 425 Gb/s aggregate data rate
• Reach up to 500 m over single-mode fiber (SMF)
• 4 × 100G PAM4 optical lanes (DR4 architecture)
• High-performance 1310 nm EML-based transmitters
• 4 × 100G PAM4 retimed 400GAUI-4 electrical interface
• MPO-12 optical connector
• Power dissipation < 8 W
• Single 3.3 V power supply
• Commercial operating temperature: 0°C to 70°C
• Fully compliant with QSFP112 MSA, IEEE 802.3bs, 100G Lambda MSA
• Integrated I²C management interface
• Built-in Digital Diagnostic Monitoring (DOM/DDM)
• RoHS compliant (lead-free)