Juniper Networks  QDD-2X400G-DR4 Compatible 800G QSFP-DD DR8 8 x 100G PAM4 Optical Transceiver Module | HYTOPTODEVICE

Product Detail：
HYTOPTODEVICE 800G Transceiver | Juniper Compatible 800BASE-DR8 QSFP-DD Optical Transceiver Module (SMF, 1310nm, 500m, MPO-16 APC, DOM)
      The HYTOPTODEVICE QDD-2X400G-DR4 is a high-performance Juniper Networks compatible 800G optical transceiver, engineered for next-generation 800G Ethernet, Data Center Interconnect (DCI), and InfiniBand Interconnects.it transmit traffic up to 500m over OS2 single-mode fibre (SMF) using a wavelength of 1310nm via MTP/MPO-16(APC) connectors. Fully compliant with IEEE P802.3ck, IEEE 802.3cu, QSFP-DD MSA standards.supporting real-time DDM.
      The 800G QSFP-DD transceiver supports 2x 400G DR4 and 8x 100G DR breakout applications.It can split into two separate 400Gbps connections, each running over 4 lanes of parallel single-mode fiber (DR4) or split into eight individual 100Gbps connections. Featured with low latency, low power, and reliability, perfect for 800G Ethernet, Data Center, high-performance computing networks, enterprise core and distribution layers, and service provider applications.

Full Compatibility List and Supported Devices of Juniper 800G Optical Transceiver

This 800G module is 100% pre-programmed and thoroughly tested to be fully compatible with Juniper network equipments, providing seamless plug-and-play operability with Juniper 800G-enabled hardware, including:

• Juniper PTX10000 Series Packet Transport Routers:

  • PTX10008 / PTX10016 (with 800G high-density line cards, e.g., PTX10K-LC1201-36SE)

• Juniper QFX5240 Series Data Center Switches:

  • QFX5240-64QD (64-port 800G QSFP-DD switches)

• Juniper ACX Series Access Routers:

  • High-density ACX7000 series routing platforms supporting 800G QSFP-DD800 optics.

Primary Application Scenarios of 800G Optical Module

• High-Density 400G/800G Aggregation: Perfect for cloud data centers transitioning from 400G to 800G, allowing a single 800G switch port to directly feed two separate 400G leaf or spine switches without needing external breakout panels.

• AI/ML Compute Clusters & Ultra-Scale Fabrics: Provides high-throughput, parallel optical pipelines to interconnect high-density GPU/TPU fabrics requiring clean, massive 400G/800G pipelines.

• Flexible Breakout Routing: Capable of breaking down further to support legacy infrastructure:

  • 2x 400G DR4 standard operation.

  • 8x 100G DR breakout configurations (4x100G per MPO-12 port) to connect directly to 100G server NICs or aggregation nodes.

• Enterprise Core & Core Edge Layers: Expands throughput capacities across service provider networks and data center interconnects (DCI) within a 500m campus footprint.

Key Product Parameters of 800G DR8 Transceiver

Q1: What is the key difference between  800G DR8 VS 800G FR4? A1: The key differences are fiber type layout and distance. DR8 uses parallel optics (8 lanes of 100G running over 8 pairs of single-mode fiber) and reaches up to 500 meters using 1310nm wavelength. It is ideal for short-reach high-density environments and allows 8x100G(DR) or 2x400G(DR4) breakouts. FR4 uses CWDM(1271,1291,1311,1331nm wavelength) over a single duplex LC fiber pair to reach up to 2km, but it does not natively breakout into 8 individual 100G lines.

Q2: Can the Juniper QDD-2X400G-DR4 operate in breakout mode? A: Yes. Our 800G DR8 module utilize 8 lanes of 100G PAM4 optical signaling, supporting breakout applications. Using appropriate MPO breakout F/F cables, it can be configured in Juniper OS to split into 2x 400G (DR4) or 8x 100G (DR) channels.

Q3: What type of fiber cable and connector are required for this transceiver? A3: The  Juniper compatible 800G DR8 module requires an MPO-16 (APC) connector operating over Single-Mode Fiber (SMF/OS2). Ensure you use an APC (Angled Physical Contact) connector to prevent back-reflection and protect the optical components. 

Q4: Is this module hot-swappable, and does it support DOM? A4: Yes, it is fully hot-pluggable, meaning it can be installed or removed without powering down the switch. It also features built-in Digital Optical Monitoring (DOM/DDM), allowing network administrators to monitor real-time metrics like TX/RX optical power, temperature, and voltage via the Juniper CLI.

Why Network Engineers Choose HYTOPTODEVICE

HYTOPTODEVICE has supplied over 5000,000 optical transceiver modules to data centers, ISPs, and enterprise networks across 100+ countries since 2011. Every module undergoes a 72-hour burn-in test and full DDM/DOM validation before shipment.

• 100% MSA-compliant modules with Cisco, Huawei,Dell,Juniper, and Arista compatibility
• ISO 9001:2015 certified manufacturing facility in Shenzhen
• Average lead time of 3–5 business days with DHL/FedEx express options
• Dedicated pre-sales engineering support for custom configurations
• Actual hardware,actual switches,actual results.we publish compatibility test video,eliminate compatibility anxiety. you can watch before you buy. 
• We can provide inspection and shipping videos to make you feel as if you are right here with the product.

"We replaced 200 Cisco-branded SFPs with HYTOPTODEVICE equivalents across our spine layer — zero compatibility issues, 40% cost reduction."— Network Architect, Tier-2 ISP, Germany

Quality Certification & Compliance：

 At HYTOPTODEVICE, our quality commitment is backed by industry-standard validations. From fiber optical transceiver manufacturing to final inspection, our processes ensure global compliance and reliability.

We adhere to rigorous standards for our SFP modules and network solutions:

• ISO 9001: Certified quality management and production consistency.

• CE & FCC: Fully compliant for seamless Global Market Access.

• RoHS: Committed to environmental responsibility and hazardous material control.

• Proven Reliability: Rigorous testing to reduce compliance risk and ensure safety.

Certified Quality. Global Standards. Guaranteed Performance.

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