PNY QSFP28 Module – 100GBase-SR4 MPO QSFP28 Transceiver for Data Networking

Experience high-density, low-latency 100 Gigabit Ethernet with the PNY QSFP28 Module. Optimized for data centers, campus networks, and high-performance computing, this hot-pluggable transceiver delivers reliable short-reach connectivity over multimode fiber using an MPO/MTP interface. From compact form factor to efficient 850 nm signaling, this module is engineered to maximize bandwidth while simplifying deployment and maintenance in modern network infrastructures.

• High-density 100GBase-SR4 performance in a QSFP28 package: The module supports four 25 Gbps lanes, delivering an aggregate bit rate up to 103.1 Gbps. This enables scalable, next-generation data-center interconnects and leaf/spine architectures without sacrificing port density or wiring complexity. Designed for data networking environments that demand robust, multi-lane throughput, it fits seamlessly into standard QSFP28 ports on switches and routers while leveraging parallel optics for demanding workloads.
• Short-reach multimode fiber reach with 850 nm signaling: Built around 850 nm VCSEL technology for SR4 operation, the transceiver is optimized for multimode fiber and short-range deployments. It supports a maximum distance of up to 100 meters (328.08 feet), making it ideal for top-of-rack, server-to-switch, and intra-data center connections where high bandwidth is required over relatively short runs. The configuration minimizes latency while preserving signal integrity across parallel optical lanes.
• Hot-pluggable QSFP28 form factor for flexible deployment: The PNY module is designed for easy insertion and removal in standard QSFP28 ports, enabling rapid scaling and simplified maintenance. Hot-plug compatibility reduces downtime during upgrades and replacements, helping data centers achieve higher uptime and faster service restoration. Its compact footprint enables dense cabling layouts without sacrificing performance or reliability.
• Low power consumption and RoHS-6 compliance for efficient operation: With power dissipation under 2.5 W, this transceiver supports energy-efficient operation and contributes to lower cooling costs in data centers. The RoHS-6 compliant construction aligns with environmental standards and corporate sustainability initiatives, ensuring responsible procurement and long-term reliability across enterprise networks.
• Commercial-grade reliability with standard-compliant interfaces: Engineered for commercial networking environments, the module adheres to industry standards for interoperability and stability. The MPO/MTP interface (12-fiber) is compatible with common parallel optic cables used in 100G SR4 deployments, delivering consistent performance across a range of networking equipment while staying resilient to routine data-center conditions.

Technical Details of PNY QSFP28 Module

• Product type: QSFP28 transceiver for 100GBase-SR4
• Connector/interface: 1 x MPO/MTP (12-fiber) fiber interface for parallel 100G SR4 operation
• Wavelength: 850 nm (short-reach optical signaling)
• Standards supported: 100GBase-SR4
• Aggregate data rate: 103.1 Gbps (approximate) across four 25 Gbps lanes
• Distance: Up to 100 meters (328.08 feet) on multimode fiber
• Fiber type: Multimode fiber (MMF) suitable for short-reach data center links
• Form factor: QSFP28 hot-pluggable module
• Power dissipation: < 2.5 W
• RoHS compliance: RoHS-6
• Applications: Data Networking, Optical Networking
• Grade: Commercial
• Compatibility: Designed to work with standard QSFP28 ports in switches, routers, and network devices

How to install PNY QSFP28 Module

• Prepare the networking device: Power down or ensure risk-free hot-swapping according to your equipment’s guidelines. Confirm that the host device has an available QSFP28 port and supports 100GBase-SR4 operation with an MPO/MTP interface.
• Inspect the module and cables: Check the PNY QSFP28 module for any visible damage and confirm the MPO/MTP fiber harness is appropriate for SR4 use. Verify fiber type (MMF) and ensure the fiber cables are clean and free of contaminants.
• Insert the module: Align the QSFP28 module with the server or switch port and carefully seat it into the QSFP28 slot until it is securely seated and the latching mechanism engages. Do not apply excessive force; the module should click into place when properly installed.
• Connect the fiber harness: Attach the MPO/MTP fiber harness to the module’s MPO/MTP connector. Use careful, even routing to avoid sharp bends and excess stress on the fibers. Ensure connectors are clean and seated properly to prevent signal loss.
• Power and verify: Power on the device (if not performing a hot swap) and verify link status through the host’s management interface. Confirm that the port negotiates to 100GBase-SR4 and that all lanes are reporting healthy activity. If available, run a basic throughput test to validate expected performance.
• Monitor and manage: Observe temperature and power consumption during initial operation. Maintain proper airflow and cabling to prevent overheating and ensure long-term reliability. Document the installation for future troubleshooting and upgrades.

Frequently asked questions

• Q: What is the PNY QSFP28 Module used for? A: It is a high-density transceiver designed for 100GBase-SR4 short-reach networking over multimode fiber. It is suitable for data centers, high-performance computing environments, and network backbones that require scalable 100G connectivity in a compact QSFP28 form factor.
• Q: What type of fiber and connector does it use? A: It uses multimode fiber with an MPO/MTP connector (12-fiber) for parallel SR4 operation, enabling four 25 Gbps lanes to deliver the aggregate bandwidth.
• Q: What is the maximum transmission distance? A: Up to 100 meters (328.08 feet) on standard multimode fiber, which makes it ideal for intra-data center connections and short-reach links between racks and switches.
• Q: Is the module hot-pluggable? A: Yes. The QSFP28 form factor is designed for hot-swapping, allowing installation and replacement without powering down networking equipment, depending on device policy.
• Q: How much power does it consume? A: The module dissipates less than 2.5 watts, contributing to lower overall data-center power usage and simpler thermal management.
• Q: Is this product RoHS compliant? A: Yes, the module is RoHS-6 compliant, aligning with environmental and sustainability standards for modern data-center hardware.