845398-B21 HPE 25GB SFP28 100m LC Fiber Transceiver Module

Overview of HPE 845398-B21 SFP28 Transceiver Module

The HPE 845398-B21 SFP28 transceiver module is a high-speed networking component engineered to deliver exceptional 25 Gigabit Ethernet connectivity. Designed for modern data centers, enterprise infrastructures, and cloud environments, this plug-in module ensures reliable, high-bandwidth communication over short-range fiber connections. Its compact form factor and superior performance make it an ideal solution for businesses seeking scalable and efficient networking hardware.

General Information

• Manufacturer: HPE
• Part Number: 845398-B21
• Product Type: Transceiver Module

Technical Specifications

• Device Type: SFP28 transceiver module
• Form Factor: Plug-in module
• Connectivity: Wired
• Cabling Type: 25GBASE-SR
• Data Link Protocol: 25 Gigabit Ethernet
• Data Rate: 25 Gbps
• Maximum Distance: 328 ft (100 meters)
• Duplex Mode: Full duplex
• Interface: 1 x 25GBASE-SR LC multi-mode connector

Interface Details

• 1 x Ethernet 25GBASE-SR port
• Dual LC connectors for multimode fiber
• Reliable and industry-standard interface compatibility

Bandwidth Benefits

• 2.5x faster than 10GbE connections
• Optimized for modern applications
• Supports growing data demands

The HPE 845398-B21 25GB SFP28 100m LC Transceiver

The HPE 845398-B21 25GB SFP28 100m LC multimode fiber transceiver module is engineered to deliver reliable, high-speed data transmission for modern data centers, enterprise networks, and high-performance computing environments. Designed for seamless compatibility with HPE networking hardware, this SFP28 module enables 25 Gigabit Ethernet connectivity over multimode fiber (MMF), supporting distances up to 100 meters. Its advanced design ensures efficient data transfer, low latency, and optimized bandwidth utilization, making it an ideal choice for businesses seeking to scale their network infrastructure.

Advanced Optical Technology

This 25GBASE-SR transceiver leverages short-range optical technology to deliver high-speed communication across multimode fiber links. By utilizing LC connectors and supporting duplex fiber transmission, the module ensures precise signal delivery with minimal interference. The use of vertical-cavity surface-emitting laser (VCSEL) technology enables efficient optical signal generation, reducing power consumption while maintaining high performance.

Short-Range Connectivity

Short-range (SR) transceivers like the HPE 845398-B21 are optimized for intra-rack and inter-rack connectivity within data centers. Their ability to maintain high throughput over short distances makes them ideal for connecting switches, servers, and storage systems. This ensures seamless data exchange within localized network environments.

Optimized for Multimode Fiber

The module is specifically designed to operate with multimode fiber cabling, including OM3 and OM4 fiber types. These fiber standards support high-speed data transmission with reduced signal attenuation, ensuring consistent performance across the supported 100-meter range.

Form Factor and Physical Compatibility

The SFP28 form factor is designed for hot-pluggable operation, allowing network administrators to install or replace the module without powering down the system. This feature enhances network uptime and simplifies maintenance procedures.

Port Configuration and Data Transmission Hot-Swap Capability 

The transceiver provides one 25 Gigabit Ethernet port using LC multimode connectors. The dual-fiber design ensures simultaneous transmission and reception of data, improving overall network efficiency.

Hot-Swap Capability 

Hot-swappable functionality enables quick upgrades and replacements, reducing downtime and ensuring uninterrupted network operations. This is particularly beneficial in mission-critical environments where continuous connectivity is essential.

Reliable Wired Connectivity Technology

Built for wired networking environments, this module guarantees stable and interference-free communication. It leverages fiber optic cabling to deliver consistent high-speed data transmission, making it superior to traditional copper-based solutions for short-range applications.

High-Speed Data Transmission

The module supports a blazing-fast data transfer rate of 25 Gbps, enabling rapid data exchange across network infrastructures. This capability is essential for bandwidth-intensive workloads such as virtualization, big data analytics, and high-performance computing.

Optimized Cabling with 25GBASE-SR

The 25GBASE-SR standard is specifically designed for short-range optical communication over multimode fiber. This ensures cost-effective deployment while maintaining high-speed performance within data centers and enterprise networks.

Maximum Transfer Distance

The HPE 845398-B21 supports a maximum transfer distance of up to 328 feet (approximately 100 meters). This makes it perfectly suited for intra-rack and inter-rack connectivity within data centers.

Fiber Cable Selection

Using high-quality multimode fiber cables, such as OM3 or OM4, is crucial for achieving optimal performance. These cables are designed to support high-speed data transmission with minimal signal loss.

Advantages of 25Gb SFP28 Technology

The transition to 25Gb Ethernet offers significant advantages over previous generations, including improved performance, cost efficiency, and scalability. The HPE 845398-B21 module embodies these benefits, making it a valuable addition to modern networks.

Higher Bandwidth Efficiency

25Gb Ethernet provides a more efficient use of bandwidth compared to 10Gb solutions, allowing organizations to handle increasing data demands without significantly increasing infrastructure costs.