[specifications]

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Cisco SFP-10G-LR 10GBASE-LR SFP+ Transceiver — 10 km

When your high-speed network requires long-reach 10 Gigabit Ethernet over fiber, the genuine Cisco SFP-10G-LR SFP+ transceiver is the trusted choice. Factory-sealed and Cisco-compliant, it supports 10GBASE-LR up to 10 km over single-mode fiber using a 1310 nm DFB laser. With DOM (Digital Optical Monitoring) and full SFP+ MSA compatibility, this hot-swappable module integrates seamlessly into Cisco Catalyst, Nexus, ASR, and UCS platforms.

LR (Long Reach) vs. SR (Short Reach): Choose LR for long-distance connections up to 10 km over Single-Mode Fiber (SMF), ideal for connecting buildings or spanning campus networks. Choose SR for short-range links within a data center—typically up to 300 m—using Multi-Mode Fiber (MMF).

Technical Features

• Speed: 10 Gbps (10GBASE-LR)
• Reach: 10 km over SMF
• Optics: 1310 nm DFB laser, LC duplex
• Diagnostics: DOM (Tx/Rx power, temperature, voltage)
• Hot-Swappable: Yes
• Operating Temp: 0 °C → 70 °C (commercial)
• Compliance: IEEE 802.3ae, SFP+ MSA, Class 1 laser
• Ideal For: Data center spine-leaf fabrics, campus uplinks, metro DCI
  

For complete technical details, check the Specifications tab above.