Juniper QDD-400G-DR4 400GE QSFP-DD DR4 500m Optical Transceiver Module

The Juniper QDD-400G-DR4 is a high-speed 400Gbps optical transceiver designed for 400 Gigabit Ethernet connectivity over single-mode fiber. It uses the high-density QSFP-DD form factor and supports both 400GBASE-DR4 and 4x100GBASE-DR configurations.

Juniper specifies the QDD-400G-DR4 for single-mode fiber (SMF) with a maximum reach of 500 meters. The module uses an MPO-12 APC optical connector and is breakout capable, making it suitable for high-density data center and network aggregation deployments. :contentReference[oaicite:0]{index=0}

400GE QSFP-DD DR4 Optical Connectivity

The QDD-400G-DR4 provides 400Gbps Ethernet connectivity through a QSFP-DD interface. It supports the 400GBASE-DR4 optical architecture and can also operate as 4 x 100Gbps DR connections for supported breakout applications. :contentReference[oaicite:1]{index=1}

This makes the transceiver suitable for high-density switches, routers, aggregation platforms, and data center infrastructure requiring high-bandwidth optical connectivity.

500m Single-Mode Fiber Transmission

The transceiver is designed for single-mode fiber (SMF) and supports a maximum optical reach of 500 meters. Juniper's 400G optics guide identifies DR4 as a parallel single-mode fiber technology with up to 500m reach, making it particularly suitable for data center environments. :contentReference[oaicite:2]{index=2}

MPO-12 APC Optical Interface

The QDD-400G-DR4 uses an MPO-12 APC connector for its parallel optical interface. The connector and fiber infrastructure should be matched to the supported DR4 configuration for reliable operation. :contentReference[oaicite:3]{index=3}

QSFP-DD High-Density Form Factor

The compact QSFP-DD form factor is designed for high-density 400Gbps networking. It allows compatible network platforms to deploy high-bandwidth optical connections while maintaining efficient port density.

Breakout-Capable 400G Architecture

The QDD-400G-DR4 is breakout capable and supports 4 x 100Gbps DR connectivity. This provides flexibility for connecting a 400Gbps host interface to multiple 100Gbps network interfaces where the host platform and breakout architecture support the configuration. :contentReference[oaicite:4]{index=4}

Technical Specifications

Applications

• 400GE Ethernet networks
• 400Gbps data center connectivity
• Data center switch-to-switch links
• High-density network aggregation
• 400G to 4x100G breakout applications
• Enterprise and cloud networking infrastructure
• 500m single-mode fiber connections

Compatibility

The Juniper QDD-400G-DR4 is designed for compatible Juniper networking equipment supporting 400GE QSFP-DD optical interfaces. Juniper's Hardware Compatibility Tool lists supported platforms and interface modules, including selected ACX and QFX platforms. Compatibility should be checked against the exact host platform before purchase. :contentReference[oaicite:5]{index=5}

Before installation, verify the host device's supported transceiver list, QSFP-DD port requirements, MPO-12 APC polarity, single-mode fiber specifications, and required breakout configuration.

Juniper QDD-400G-DR4 Price in Bangladesh

The Juniper QDD-400G-DR4 is a specialized 400Gbps data center optical transceiver. Pricing in Bangladesh can vary according to stock availability, quantity, warranty, and procurement requirements.

For the latest Juniper QDD-400G-DR4 price in Bangladesh, customers can request a quotation with the required quantity and Juniper host equipment model.