Optical SFP28 transceiver HP Enterprise S3N85A 32Gbps short-wave single-pack low-profile

HP Enterprise S3N85A is a short-wave SFP28 optical transceiver designed for 32 Gbit/s data links over single-mode fiber. This low-profile single-pack module provides a compact solution for high-density server, switch and storage environments where short-reach optical connectivity and low latency are required. The transceiver uses the SFP28 form factor and is intended for short-wave fiber links, offering plug-and-play insertion into compatible network ports and predictable signal performance for modern data center and enterprise networks.

Advantages

The transceiver delivers a 32 Gbit/s line rate in an SFP28 form factor, combining high throughput with space-efficient design. Its low-profile single-pack casing reduces occupied slot space in dense chassis and mezzanine configurations. Designed for short-wave fiber operation, the module provides stable optical performance and low latency suitable for demanding storage and server interconnects. Compatibility with common SFP28 ports simplifies deployment and replacement in existing network infrastructures.

Suitable for

• Short-reach fiber links between switches and servers
• High-performance SAN and storage connectivity
• High-density data center top-of-rack and aggregation ports
• Server NIC and host bus adapter uplinks

Key specifications

• Form factor: SFP28 low-profile single-pack
• Maximum data rate: 32 Gbit/s
• Optical type: short-wave fiber
• Typical application: short-reach links in data center environments
• Physical dimensions: approximately 84.8 × 165.1 × 16 mm

How to use

Install the transceiver by inserting the SFP28 module into a compatible SFP28 port on a switch, server NIC or storage controller until it latches. Connect appropriate short-wave single-mode fiber with matching connectors and verify link status through the host device management interface. Ensure correct port configuration and speed settings on connected equipment to enable 32 Gbit/s operation. If required, monitor optical parameters and link diagnostics from the host device to confirm signal quality.

Recommendations

Handle the optical module with care to avoid contamination of fiber connectors and transceiver interfaces; use dust caps when ports are not connected. Verify compatibility with host hardware and firmware revisions before deployment. For optimal performance in dense racks, ensure adequate ventilation and follow manufacturer guidelines for hot-plugging and static safety.