SFP-10G-LRM - Cisco 10GB SFP+ LR Module MMF/SMF

Cisco SFP-10G-LRM — 10GBASE-LR/LRM SFP+ Fiber Transceiver

What it is

SFP-10G-LRM is a Cisco 10 Gigabit SFP+ fiber transceiver designed for 10GBASE-LR/LRM links. It supports both single-mode and certain multimode fiber types (with the right launch conditions) and is used in switches, routers, and other networking gear with SFP+ ports to provide high-speed fiber uplinks or horizontal connections.

Why buyers pick SFP-10G-LRM (plain English)

10 Gigabit fiber connectivity: Provides high-speed fiber links where copper isn’t sufficient or cables are long.

Flexible medium support: Works on multimode fiber with optional mode-conditioning patch cables or on single-mode fiber for extended reach.

SFP+ standard form factor: Plugs into SFP+ ports on compatible Cisco gear for easy high-speed uplinks.

Good for campus and data center: Ideal for connecting aggregation switches, distribution stacks, and long fiber runs in enterprise networks.

60-second spec box (SFP-10G-LRM)

Form factor

• SFP+ (10 Gigabit Small Form-Factor Pluggable)

Speed / protocol

• 10GBASE-LRM (10 Gbps)

Fiber type

• Multimode (MMF) with mode conditioning or

• Single-mode (SMF) depending on fiber launch conditions

Wavelength

• 1310 nm

Connector

• LC duplex

Reach

• Up to ~220 m on standard MMF without conditioning

• Longer on SMF (depending on optics and fiber)

Where it fits (and when to choose something else)

Perfect for:

• Campus and data center 10 Gb fiber uplinks

• Multimode fiber links with mode conditioning

• High-speed switch-to-switch connections

Choose something else if:

• You need longer reach over SMF → 10GBASE-LX optics

• You need even higher speeds → 25G / 40G / 100G optics

• You want copper at 10 Gb → 10GBASE-T modules

TL;DR

SFP-10G-LRM is a Cisco 10GBASE-LRM SFP+ fiber transceiver — a high-speed fiber module for 10 Gb links over multimode or single-mode fiber depending on conditions.