A6516A HP 1000Base-LX SFP Transceiver Module: A Reliable Solution for High-Speed Networking

David John

July 22, 2025

Table of Content

In today’s fast-evolving digital landscape, businesses and data centers demand fast, reliable, and secure network solutions that can handle large volumes of data over extended distances. With rising expectations for connectivity, every component of your IT infrastructure matters—especially the transceivers that power your network backbone. Among the most reliable in this space is the A6516A HP 1000Base-LX SFP Transceiver Module.

Available through Subserve, the A6516A is designed for long-distance, high-speed fiber connectivity. It offers enterprise-grade performance that helps organizations maintain seamless communication between their key networking systems.

Product Overview: What Is the A6516A?

The A6516A is an HP-branded SFP (Small Form-factor Pluggable) transceiver that supports 1000Base-LX Gigabit Ethernet over single-mode fiber. It is built for long-wave transmission at a wavelength of 1310nm and can reach distances of up to 10 kilometers. With a duplex LC connector interface, the A6516A is an ideal choice for connecting switches, routers, or other networking devices across wide spaces.

Compatible with Brocade switches and many HP networking systems, the A6516A provides flexible, hot-swappable deployment for IT environments where uptime and compatibility are essential.

Key Features of the A6516A

Long-Distance Capability

One of the most critical features of the A6516A is its ability to transmit data up to 10 kilometers using single-mode fiber. This makes it suitable for use in campus networks, multi-building business setups, and even metropolitan area networks that need consistent, long-range performance.

High-Speed Data Transmission

With 1Gbps transmission speed, the A6516A ensures smooth data flow for critical applications like storage networking, virtual machine migration, and large file transfers. The module supports full-duplex communication, enhancing both upload and download efficiency.

Duplex LC Connector Interface

The duplex LC interface enables efficient and stable bi-directional communication over fiber optic cabling. This ensures better alignment and less signal loss, which is vital for long-distance connections where precision and consistency are key.

Compatibility and Versatility

Designed for use in HP and Brocade systems, the A6516A integrates easily into existing infrastructures. It is fully compliant with IEEE 802.3z standards and is hot-swappable, allowing it to be replaced or added without powering down the system.

Applications in Modern IT Environments

Enterprise Campus Networking

Businesses with multiple buildings on a single campus benefit from transceivers like the A6516A that can connect networking hardware over long distances. It enables seamless communication between departments or facilities without relying on slower copper cabling.

Data Centers

The A6516A is widely used in data centers for interconnecting switches, servers, and storage systems. With its reliable 1Gbps speed and long-distance capabilities, it provides the high performance that mission-critical environments require.

Internet Service Providers (ISPs)

ISPs and telecom companies frequently use long-range transceivers like the A6516A to connect infrastructure between central offices and remote nodes. Its durability and consistent performance make it a trusted choice in high-demand networking scenarios.

Government and Education Networks

Secure and stable data transmission is crucial for public institutions, schools, and universities. The A6516A delivers dependable long-distance connectivity that supports administrative systems, research networks, and student access platforms.

Technical Specifications

Part Number: A6516A
Form Factor: SFP (Small Form-factor Pluggable)
Data Rate: 1 Gigabit per second
Transmission Standard: 1000Base-LX
Optical Wavelength: 1310nm
Connector Type: Duplex LC
Fiber Type: Single-mode
Transmission Distance: Up to 10 kilometers
Compatibility: Brocade switches and HP networking equipment
Hot-Swappable: Yes
Operating Temperature: 0°C to 70°C
Compliance: IEEE 802.3z

Why Choose the A6516A from Subserve?

At Subserve, quality and performance are our top priorities. Each A6516A module we supply undergoes rigorous testing to ensure it meets original manufacturer specifications. We are committed to helping IT professionals and organizations source dependable hardware at competitive prices.

Our A6516A units are ready to deploy in a wide variety of enterprise setups, and we offer expert support to help customers find the most compatible solutions for their infrastructure needs.

Trusted Quality

All networking modules sold at Subserve, including the A6516A, are sourced from reliable channels and inspected for compliance with industry standards. Our focus on genuine, tested components helps eliminate compatibility issues and reduces downtime.

Competitive Pricing

We understand that enterprise IT budgets require balance between performance and cost. That’s why our pricing on the A6516A and other networking products is structured to offer both affordability and value without sacrificing quality.

Expert Customer Support

Our sales and technical support teams are available to guide customers through product selection, compatibility questions, and deployment strategies. Whether you’re installing one transceiver or designing a full fiber network, Subserve is here to assist.

Installation and Deployment Tips

Installing the A6516A module is simple. Insert it into an available SFP port on your switch or router, and then connect the duplex LC fiber cable. The module will typically be auto-detected by the system, requiring no additional software or configuration in most cases.

Before installation, ensure that your network equipment supports 1000Base-LX transceivers and is compatible with the specific wavelength and connector type. Always use clean fiber cables and handle transceivers with care to prevent damage or signal degradation.

Maintaining Network Performance

Using a high-quality transceiver like the A6516A can significantly reduce latency and packet loss over long distances. For optimal performance, regularly inspect your fiber cables for cleanliness and wear, monitor network activity for anomalies, and ensure your switches and routers are running the latest firmware.

Subserve also recommends keeping spare transceivers available for critical links, so replacements can be made quickly in the event of hardware failure.

Energy Efficiency and Sustainability

The A6516A operates with low power consumption, making it suitable for dense networking environments where energy efficiency matters. Reduced heat output also contributes to a longer lifespan for both the module and the equipment it supports. This supports eco-conscious IT strategies and helps manage operational costs over time.

Final Thoughts

The A6516A HP 1000Base-LX SFP Transceiver Module offers the perfect balance of range, speed, and reliability for organizations that demand high-performance fiber networking. Whether you’re upgrading an existing system, extending your campus network, or building a new data center, this module provides dependable 1Gbps connectivity over long distances.

Available now at Subserve, the A6516A is backed by quality assurance, competitive pricing, and expert support to help keep your network running smoothly and efficiently. Explore our full range of networking hardware and find the right solution for your infrastructure today.

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