855800-B21 HPE Sfp28 Transceiver Module - 25Gb Ethernet

Overview of HPE 855800-B21 25Gb SFP28 Transceiver Module

The HPE 855800-B21 SFP28 transceiver module is a high-performance networking component engineered to deliver reliable and ultra-fast 25 Gigabit Ethernet connectivity. Designed for modern data centers and enterprise infrastructures, this plug-in module ensures efficient data transmission, low latency, and seamless integration into compatible networking equipment.

General Information

• Manufacturer: HPE
• Part Number: 855800-B21
• Product Type: Transceiver Module

Technical Specifications

• Device Type: SFP28 transceiver module
• Form Factor: Plug-in module
• Connectivity: Wired optical fiber
• Protocol: 25 Gigabit Ethernet
• Speed: Up to 25 Gbps
• Cabling Type: 25GBASE-SR
• Maximum Distance: 328 feet
• Connector: LC multi-mode (dual)
• Duplex Mode: Full duplex

The HPE 855800-B21 SFP28 25Gb SR 100m Transceiver Module

The HPE 855800-B21 SFP28 25Gb SR 100m transceiver module represents a high-performance optical solution designed to meet the increasing demands of modern data center networking. Built for 25 Gigabit Ethernet environments, this compact and efficient module delivers exceptional bandwidth, low latency, and seamless compatibility with enterprise-grade infrastructure. As organizations continue to scale their IT operations, the need for reliable and high-speed connectivity solutions becomes critical, making this SFP28 transceiver an essential component in next-generation network deployments.

25 Gigabit Ethernet Technology

25 Gigabit Ethernet has emerged as a preferred networking standard due to its optimal balance between performance, cost-efficiency, and scalability. Compared to legacy 10GbE solutions, 25GbE provides significantly higher throughput while maintaining similar infrastructure requirements. The HPE 855800-B21 module leverages this technology to deliver superior data transfer rates, ensuring smooth operation for bandwidth-intensive applications such as virtualization, cloud computing, and high-performance storage systems.

Advantages of 25GbE Over Legacy Speeds

The transition from 10GbE to 25GbE brings numerous advantages, including improved lane efficiency, reduced power consumption per gigabit, and better utilization of existing fiber infrastructure. By using a single lane for 25Gbps transmission, the HPE SFP28 module simplifies network design while enhancing overall performance. This efficiency is particularly valuable in dense data center environments where space and energy consumption are critical considerations.

Short Range (SR) Optical Technology

The “SR” designation in the HPE 855800-B21 refers to short-range optical transmission, which is specifically designed for distances up to 100 meters over multimode fiber (MMF). This makes the module an excellent choice for intra-rack and inter-rack connectivity within data centers, where high-speed communication over short distances is essential.

Multimode Fiber Compatibility

This transceiver module is engineered to operate seamlessly with OM3 and OM4 multimode fiber cables. These fiber types are widely used in enterprise environments due to their cost-effectiveness and ability to support high data rates over relatively short distances. The compatibility ensures easy integration into existing network infrastructures without the need for extensive upgrades.

Enhanced Signal Integrity

The use of advanced optical components ensures minimal signal degradation, providing stable and reliable communication across connected devices. This level of signal integrity is essential for maintaining data accuracy and preventing transmission errors.

SFP28 Form Factor and Design Efficiency

The SFP28 form factor is a compact and hot-pluggable interface that allows for flexible deployment in a variety of networking equipment. The HPE 855800-B21 module adheres to industry standards, ensuring compatibility with a wide range of switches, routers, and servers.

Hot-Pluggable Capability

The hot-pluggable nature of the module allows for easy installation and replacement without interrupting network operations. This feature reduces downtime and simplifies maintenance, making it a practical choice for dynamic IT environments.

Compatibility with HPE Networking Ecosystem

One of the key strengths of the HPE 855800-B21 transceiver module is its seamless integration with HPE networking hardware. It is specifically optimized for use with HPE switches and servers, ensuring reliable performance and simplified configuration.

Integration with HPE Switches

The module is fully compatible with a wide range of HPE switches, enabling high-speed connectivity across the network. This compatibility ensures that organizations can leverage their existing infrastructure while upgrading to faster networking speeds.

Data Transfer Rate

The module supports a data rate of 25 Gigabits per second, providing a significant upgrade over traditional 10GbE solutions. This increased bandwidth allows for faster data processing and improved network efficiency.

Transmission Distance

With a maximum transmission distance of 100 meters, the module is идеально suited for short-range applications within data centers. This makes it an efficient choice for connecting servers and switches within the same facility.

Optical Wavelength and Connector Type

The module operates using a short-wavelength laser and features an LC duplex connector, ensuring secure and reliable connections. The use of standardized connectors simplifies installation and maintenance.