The standard model for 10 Gigabit Ethernet over multimode fiber is the 10GBASE-SR SFP+ transceiver.

Overview

The 10GBASE-SR (Short Reach) SFP+ module is the most widely used 10 Gigabit Ethernet optical transceiver for multimode fiber (MMF) networks . It is designed for short-distance, high-speed connectivity in data centers, enterprise networks, and high-density switch environments . The SFP+ form factor is compact, hot-swappable, and supports duplex LC connectors, making it suitable for flexible deployment and easy replacement .

Key Specifications

• Fiber Type: Multimode fiber (OM3 or OM4)
• Wavelength: 850 nm using VCSEL laser technology
• Maximum Distance:
  • Up to 300 meters on OM3 fiber
  • Up to 400 meters on OM4 fiber
• Connector Type: Duplex LC UPC
• Power Consumption: Low, optimized for high-density deployments

Use Cases

• Data Center Links: Switch-to-server or switch-to-switch connections within racks
• Enterprise Networks: Short-range connections between network devices
• High-Density Environments: Ideal for applications requiring multiple 10GbE links in a compact space

Comparison with Other 10G SFP+ Modules

• 10GBASE-LR: Single-mode fiber, 1310 nm, up to 10 km, used for building-to-building or campus links
• 10GBASE-LRM: Multimode fiber, supports up to 220 meters on FDDI-grade MMF, requires mode conditioning for OM1/OM2 fibers For most short-reach multimode fiber applications, the 10GBASE-SR SFP+ is recommended due to its cost efficiency, low power consumption, and compatibility with OM3/OM4 fibers .