Walsun 800G QSFP-DD DR8 Transceiver Module

About Walsun 800G QSFP-DD DR8 Optical Transceiver Module in Bangladesh

The Walsun 800G QSFP-DD DR8 is an ultra-high-speed optical transceiver designed for next-generation 800GbE data center networks, AI/ML clusters, high-performance computing and high-density network interconnects. It supports 800GBASE-DR8 using eight 100Gbps-class optical lanes and provides up to 500m transmission over single-mode fiber.

Walsun's official product page identifies the 800G QSFP-DD DR8 as supporting an 8×100GBASE-DR optical interface, with an EML laser transmitter, PIN receiver, digital monitoring, QSFP-DD MSA packaging and dual MPO-12 optical connectivity. The 1310nm variant supports up to 500m transmission. Walsun official 800G QSFP-DD DR8 specifications

The module uses eight optical transmit and receive channels to deliver an aggregate 800Gbps connection. PAM4 signaling enables 100Gbps-class transmission per optical lane while the QSFP-DD form factor provides a compact, high-density solution for modern 800GbE switching infrastructure.

Walsun 800G QSFP-DD DR8 Specifications & Features

Overview

The Walsun 800G QSFP-DD DR8 provides 800Gbps optical connectivity for high-density Ethernet switching environments. It is designed around eight 100Gbps-class optical lanes, allowing a single pluggable module to provide eight times the optical lane capacity of traditional 100G transceivers.

The 1310nm DR8 architecture uses single-mode fiber and supports a reach of up to 500m. This makes the module particularly suitable for short-reach single-mode fiber connections inside modern data centers and between closely located network facilities.

Walsun lists 800G QSFP-DD DR8 among its high-speed optical module products alongside 800G OSFP DR8, 400G QSFP-DD and 400G OSFP solutions. Walsun official product portfolio

Buy Walsun 800G QSFP-DD DR8 in Bangladesh

Purchase the Walsun 800G QSFP-DD DR8 Optical Transceiver Module from Datacom Technologies (BD). We supply Walsun high-speed optical transceivers, 400G/800G data center optics, QSFP-DD modules and high-performance networking solutions throughout Bangladesh.

Key Features

• 800Gbps aggregate optical bandwidth
• 800GBASE-DR8 support
• 8 × 100GBASE-DR optical lanes
• 1310nm optical wavelength
• Up to 500m single-mode fiber transmission
• Dual MPO-12 optical interface
• EML laser transmitter
• PIN receiver
• PAM4 modulation
• Digital monitoring interface
• QSFP-DD high-density form factor
• Maximum 16W power consumption
• +3.3V single power supply
• 0°C to 70°C case operating temperature
• IEEE 802.3cd compliant
• QSFP-DD MSA compliant

800GBASE-DR8 Optical Technology

800GBASE-DR8 is an 800GbE optical architecture based on eight 100Gbps-class optical channels. The Walsun 800G QSFP-DD DR8 implements these eight optical lanes within a single high-density QSFP-DD module.

Each optical lane uses PAM4 signaling to achieve 100Gbps-class transmission. Eight lanes operating together provide the aggregate 800Gbps optical bandwidth.

Walsun describes its 800G DR8 as an 8×100GBASE-DR optical interface designed for up to 500m transmission over single-mode fiber. Walsun DR8 product specifications

1310nm Single-Mode Fiber

The standard 800G QSFP-DD DR8 variant operates at approximately 1310nm and is designed for single-mode fiber.

Single-mode fiber provides the optical characteristics required for 100Gbps-class PAM4 lanes and enables the DR8 module to reach up to 500m.

500m Transmission Distance

The 1310nm Walsun DR8 module supports transmission distances of up to 500m over compatible single-mode fiber.

This reach makes the module appropriate for high-density data center networks, AI clusters, HPC systems, switch-to-switch connections and short data center interconnects.

The actual achievable distance depends on the complete optical link budget, including fiber attenuation, connector losses, MPO insertion loss, return loss and system margin.

Eight 100GBASE-DR Optical Lanes

The Walsun 800G QSFP-DD DR8 contains eight optical lanes, with each lane operating at 100Gbps-class signaling.

Dual MPO-12 Optical Interface

The Walsun 800G QSFP-DD DR8 uses a dual MPO-12 optical interface. The parallel-fiber architecture provides the multiple optical paths required by the eight 100G optical lanes.

This differs from WDM-based 800G solutions such as 800G FR4 or LR4, which use wavelength multiplexing to reduce the number of physical fibers.

When installing the module, the correct MPO polarity, fiber type, connector gender and breakout configuration must be selected for the specific network architecture.

EML Transmitter and PIN Receiver

The 1310nm Walsun 800G QSFP-DD DR8 uses EML laser transmitters and PIN receivers.

Walsun specifies a transmit-power range of approximately -2.9 to +4.0dBm and receiver sensitivity better than -5.9dBm for the 1310nm 500m configuration. Walsun official specifications

PAM4 Modulation

The 800G QSFP-DD DR8 uses PAM4 signaling to achieve 100Gbps-class optical transmission on each lane.

PAM4 encodes two bits per symbol, allowing substantially higher data throughput per electrical or optical lane than traditional NRZ signaling without requiring an equivalent increase in symbol rate.

Walsun's technical information explains that 800G optical modules can use eight 100G-class lanes or four 200G-class lanes depending on architecture. The DR8 implementation belongs to the eight-lane 100G-class architecture. Walsun 800G optical module guide

Digital Monitoring

The Walsun 800G QSFP-DD DR8 supports a digital monitoring interface. Compatible host equipment can use the module management interface to monitor operational parameters and assist with troubleshooting.

Digital diagnostics can help network administrators monitor module temperature, supply voltage, optical power and other supported transceiver parameters.

QSFP-DD800 High-Density Form Factor

QSFP-DD is a high-density pluggable form factor designed to support multiple electrical lanes within a compact module. For 800G applications, QSFP-DD800 provides the electrical bandwidth required to drive eight 100Gbps-class lanes.

Walsun's 800G QSFP-DD DR8 is designed as a QSFP-DD MSA module and is intended for high-density 800GbE network equipment.

800G QSFP-DD DR8 vs 800G OSFP DR8

QSFP-DD and OSFP are different physical form factors. The correct module must match the host switch or network equipment's optical cage and electrical interface.

800G DR8 vs 800G FR4

DR8 is optimized for parallel single-mode optical connections up to 500m, while WDM-based FR4 solutions reduce fiber count and extend the reach to approximately 2km.

800G DR8 vs 800G 2×DR4

Walsun's technical guide describes DR8 and 2×DR4 as related 500m single-mode architectures, with 2×DR4 using two MPO-12 interfaces. Walsun 800G architecture guide

AI, HPC & Data Center Applications

• 800GbE data center networks
• AI/ML GPU clusters
• High-performance computing
• AI fabric networks
• High-density leaf-spine architectures
• Switch-to-switch 800G connectivity
• Data center interconnects
• Cloud computing infrastructure
• High-performance storage networks
• Next-generation Ethernet aggregation

AI/ML Cluster Connectivity

800G optical modules are increasingly used in high-bandwidth AI and machine-learning infrastructure where large numbers of GPUs, accelerators and high-performance switches must exchange data with very low network bottlenecks.

The Walsun 800G QSFP-DD DR8 is particularly suited to short-reach single-mode fiber connections within high-density AI and HPC environments because it combines 800Gbps bandwidth with a compact QSFP-DD form factor.

Walsun has specifically positioned its 800G DR8 products for high-speed data center internal links and AI/ML cluster applications. Walsun 800G/400G product announcement

Power Consumption

The Walsun 800G QSFP-DD DR8 specifies a maximum power consumption of 16W. The module uses a single +3.3V power supply.

Because 800G modules operate at significantly higher bandwidth than previous-generation 100G and 400G optics, switch thermal design, airflow and port-level power budgets should be checked before deployment.

Compatibility

The 800G QSFP-DD DR8 must be installed in networking equipment that supports 800G QSFP-DD optics and the appropriate electrical interface.

Before purchasing, confirm the exact switch or router model, supported 800G optical standards, firmware requirements, connector configuration and vendor coding.

Installation Considerations

• Use compatible single-mode fiber.
• Use the correct dual MPO-12 cabling.
• Verify MPO polarity and connector configuration.
• Check the complete 500m optical link budget.
• Account for MPO insertion and return losses.
• Clean and inspect MPO connectors before installation.
• Verify that the host equipment supports 800G QSFP-DD.
• Confirm the required vendor coding before purchase.
• Check switch power and thermal requirements.
• Ensure both ends use compatible 800G DR8 optics or supported interconnect architecture.

Benefits

• 800Gbps aggregate bandwidth
• 800GBASE-DR8 support
• 8 × 100GBASE-DR optical lanes
• Up to 500m single-mode fiber reach
• 1310nm optical operation
• EML laser transmitter
• PIN receiver
• PAM4 signaling
• Dual MPO-12 optical interface
• Digital monitoring
• Compact QSFP-DD form factor
• Maximum 16W power consumption
• +3.3V power supply
• Suitable for AI, HPC and high-density data centers

Why Buy from Datacom Technologies (BD)?

Datacom Technologies (BD) supplies Walsun 800G QSFP-DD DR8 optical transceivers, 400G/800G data center optics, high-speed Ethernet modules and fiber networking solutions in Bangladesh. Customers can receive competitive pricing, technical consultation, compatibility guidance and nationwide delivery.

• Call/WhatsApp: +8801748173213
• Email: sales@datacomtechbd.com
• Alternative Email: datacomtechnologiesbd@gmail.com
• Office: Tropical Center, 218, Dr. Kudroti Khuda Road, New Elephant Road, Dhaka-1205, Bangladesh

Frequently Asked Questions (FAQ)

Q1: What is the Walsun 800G QSFP-DD DR8?
It is an 800Gbps high-speed optical transceiver using eight 100Gbps-class DR optical lanes for short-reach single-mode fiber connectivity.

Q2: What is the Walsun part number?
Walsun's official product page lists HXEP-GM3P1C for the 800G QSFP-DD DR8 family.

Q3: What is the maximum transmission distance?
The 1310nm DR8 configuration supports up to 500m over single-mode fiber.

Q4: What wavelength does it use?
The DR8 configuration uses 1310nm optical transmission.

Q5: What type of fiber does it require?
It uses single-mode fiber.

Q6: What connector does it use?
The Walsun 800G QSFP-DD DR8 uses a dual MPO-12 optical interface.

Q7: How many optical lanes does it have?
It provides eight 100GBASE-DR optical lanes, delivering an aggregate 800Gbps connection.

Q8: Does it use PAM4?
Yes. The 800G DR8 architecture uses 100G-class PAM4 optical signaling.

Q9: What transmitter and receiver does it use?
The 1310nm 500m version uses EML lasers and PIN receivers.

Q10: What is the maximum power consumption?
Walsun specifies maximum power consumption of 16W.

Q11: Is 800G QSFP-DD DR8 the same as 800G OSFP DR8?
No. Both can provide 800G DR8 connectivity, but QSFP-DD and OSFP are different physical form factors. The module must match the host equipment.

Q12: Where can I buy Walsun 800G QSFP-DD DR8 in Bangladesh?
You can contact Datacom Technologies (BD) for Walsun 800G QSFP-DD DR8 optical transceivers, 800G data center optics and AI/HPC networking solutions with nationwide delivery.