StarTech.com MSA UNCODED Compatible QSFP+ Module - 40GBASE-SR4 - 40GE Gigabit Ethernet QSFP+ Multi Mode Fiber (MMF) - 300m

Designed for today’s data centers, cloud facilities, and high-performance computing environments, the StarTech.com MSA UNCODED QSFP+ module delivers reliable 40 Gigabit Ethernet connectivity over multimode fiber. This MSA-compliant transceiver is engineered to be compatible with a broad range of MSA-brand switches and routers, enabling seamless interoperation across vendors and scalable upgrades without sacrificing performance. The 40GBASE-SR4 specification uses four parallel lanes on MMF to achieve high aggregate bandwidth, making it an excellent choice for interconnects between top-of-rack switches, spine switches, storage networks, and HPC clusters. With a reach of up to 300 meters, this transceiver supports mid- to large-scale data-center deployments, campus backbones, and multi-building links where fiber runs traverse rooms or floors. The UNCoded variant emphasizes straightforward signaling supporting efficient, low-latency data transport, while the compact QSFP+ form factor maximizes port density in densely packed chassis environments. In short, this module combines reliability, interoperability, and performance to meet the most demanding, future-ready network infrastructures.

• Uncoded MSA-compatible QSFP+ transceiver that supports 40GBASE-SR4 networks, enabling scalable uplinks across data centers and cloud infrastructures with broad interoperability across multiple device brands.
• Delivers 40 Gbps of aggregate bandwidth over four parallel lanes on multimode fiber, employing 850 nm signaling per lane to support high-throughput server-to-switch, switch-to-switch, and storage-network connectivity.
• Long reach for MMF deployments, with a maximum distance of up to 300 meters, ideal for spine-leaf architectures, cross-room links, and campus backbones where fiber runs span multiple locations.
• Plug-and-play, hot-pluggable design that simplifies deployment in compatible equipment, minimizes network downtime, and reduces maintenance overhead while preserving service-level commitments.
• Optimized for reliability and consistent performance, featuring robust signaling, LED indicators for link status, and broad compatibility with StarTech.com and other MSA-brand devices to support mixed-vendor networks.

Technical Details of StarTech.com MSA UNCODED Compatible QSFP+ Module - 40GBASE-SR4 - 40GE Gigabit Ethernet QSFP+ Multi Mode Fiber (MMF) - 300m

• Standard: 40GBASE-SR4
• Form Factor: QSFP+
• Fiber Type: Multi-Mode Fiber (MMF)
• Distance: Up to 300 m
• Data Rate: 40 Gbps
• Wavelength: 850 nm (per lane)
• Connector: QSFP+
• Compliance: MSA Compliant; UNCoded variant designed for broad interoperability
• Compatibility: Works with MSA-brand switches and routers and other MSA-compatible devices
• Application: Ideal for data center interconnects, high-performance computing networks, and storage-area networks requiring 40GBASE-SR4 MMF links

How to install StarTech.com MSA UNCODED Compatible QSFP+ Module

• Power down the host device, or verify hot-swap capability, and follow proper electrostatic discharge (ESD) precautions before handling the module.
• Identify an available QSFP+ slot in a chassis or switch/router that supports 40GBASE-SR4 transceivers and MMF connections.
• Carefully align the module with the slot and slide it in straight until it seats with a firm click; do not apply excessive force.
• Connect multimode fiber cables to the module using four LC duplex connectors per end (as required by SR4 and your network design); ensure fiber type is MMF (OM3/OM4 as appropriate for your link budget).
• Power on the device and verify the link status via the management interface or LEDs; perform a basic connectivity test to confirm bidirectional data transmission and link stability.
• Document cabling and labeling, maintain clean connectors, and monitor performance to ensure long-term reliability and optimal throughput.

Frequently asked questions

• Q: What is the StarTech.com MSA UNCODED QSFP+ Module used for?
  A: It is a high-performance transceiver that provides 40GBASE-SR4 connectivity over multimode fiber, enabling high-bandwidth links between data-center devices while supporting interoperability across multiple vendors.
• Q: What fiber type and distance does it support?
  A: It uses Multi-Mode Fiber (MMF) and supports up to 300 meters depending on fiber type and network design.
• Q: Is this module compatible with non-StarTech hardware?
  A: Yes. The module is MSA-compliant, designed to work with a broad range of MSA-brand switches, routers, and other compatible equipment.
• Q: How do I know if my device supports 40GBASE-SR4?
  A: Check your device’s hardware specifications for a QSFP+ slot that supports 40GBASE-SR4 and MMF connectivity; verify that the chassis or module lineup is MSA-compatible.
• Q: Can I install this module in a live network?
  A: In most cases, it is designed for hot-swapping in compatible equipment; however, always follow vendor recommendations and perform appropriate risk assessments before making changes in a production environment.