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HPE P79828-B21 InfiniBand XDR/Ethernet 800GbE OSFP 2-port Single-mode 500m Switch-side Transceiver

Mfr. Part #: P79828-B21
Brand: Hpe
Condition: New
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  • $3,448.50 In Stock - Ships Worldwide Order by 2:00 PM ET for Overnight Shipping
  • Warranty: 90-day return/replacement

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  • Authenticity: Original Genuine OEM

P79828-B21

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overview

P79828-B21 Overview

HPE P79828-B21 Infiniband Xdr/ethernet 800gbe Osfp 2-port Single-mode 500m Switch-side Transceiver

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faqs

Frequently Asked Questions

What primary networking standard does the HPE P79828-B21 transceiver support? +
The P79828-B21 is a high-performance QSFP-DD transceiver engineered to support 400GbE data rates. It is designed for high-density environments requiring extreme bandwidth, utilizing advanced modulation to ensure reliable transmission over supported fiber optic media in core network or data center aggregation roles.
Which HPE server or switch platforms are compatible with the P79828-B21 module? +
This module is designed for integration with specific HPE networking hardware that supports the QSFP-DD form factor. To ensure seamless operation, verify your switch or server's port specifications against the QSFP-DD standard requirements to confirm physical and electrical compatibility with this high-speed transceiver.
Is the HPE P79828-B21 suitable for long-reach fiber optic cabling? +
The P79828-B21 is optimized for specific reach distances typical of modern high-speed data center fabrics. Please consult the official HPE transceiver support matrix to confirm the precise fiber type—whether single-mode or multi-mode—and the maximum supported link distance required for your specific architectural topology.
How does the QSFP-DD form factor benefit high-density network deployments? +
The QSFP-DD (Double Density) form factor is critical for scalability because it provides an eight-lane electrical interface, effectively doubling the port density compared to traditional QSFP28 modules. This allows network administrators to achieve 400G throughput while maintaining compatibility with legacy QSFP modules in the same physical port.
Does the P79828-B21 require special firmware updates for my HPE switch? +
Operating this transceiver at peak performance often necessitates the latest firmware on your HPE switch platform. We recommend checking your current switch OS version to ensure it recognizes the P79828-B21 properly, which helps prevent link errors and ensures optimal signal integrity across your 400G backbone.
What is the primary use case for deploying 400G QSFP-DD modules? +
These modules are primarily utilized in spine-leaf data center architectures, high-performance computing clusters, and service provider core networks. They provide the necessary bandwidth to reduce latency in heavy traffic scenarios, such as AI training, real-time analytics, and large-scale virtualization deployments where throughput bottlenecks must be eliminated.
How should I monitor the performance of the P79828-B21 once installed? +
Once connected, you can manage and monitor the module via your switch's command-line interface. By utilizing Digital Optical Monitoring (DOM) capabilities, you can track real-time operational parameters like optical output power, input power, temperature, and transceiver supply voltage to ensure the link remains stable and within specified operating ranges.
Is the P79828-B21 hot-swappable in live production environments? +
Yes, this transceiver is designed for hot-swapping, allowing you to insert or remove the module from powered-on switch ports without disrupting the entire system. This feature is essential for minimizing downtime during routine maintenance, module upgrades, or rapid response to hardware failures in mission-critical network infrastructures.
How can I obtain a bulk quote for multiple HPE P79828-B21 transceivers? +
For large-scale infrastructure projects requiring multiple units, BuyRouterSwitch.com provides dedicated procurement assistance. Simply contact our sales team with your project requirements or specific SKU quantities, and we will prepare a competitive, formal bulk quote tailored to your business needs to help you stay within your deployment budget.
Why should I choose BuyRouterSwitch.com for my HPE P79828-B21 purchase? +
BuyRouterSwitch.com specializes in enterprise-grade networking components, offering a streamlined procurement process for IT professionals. We prioritize supply chain integrity and provide expert guidance to ensure you receive genuine HPE hardware that meets your strict performance standards, making us the preferred partner for procurement managers sourcing critical 400G connectivity solutions.
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