Cisco X2-10GB-LR 10Gbps 10GBase-LR Single-Mode Fiber Transceiver

In this review the Cisco X2-10GB-LR is evaluated as a straightforward, single-mode 10Gbps transceiver aimed at network engineers and IT teams that need reliable long-reach fiber connectivity. The bottom line: it is a purpose-built 10GBase-LR module that delivers up to 10 km reach over single-mode fiber at 1310nm and uses duplex SC connectivity, making it a practical choice when compatibility with existing single-mode links and rack-level optics is the priority.

Key Features

• 10Gbps throughput: Provides full-rate 10GBase-LR performance for backbone and aggregation links where bandwidth consistency matters.
• Single-mode 10km reach: Supports up to 10 km over single-mode fiber, which covers campus and metropolitan point-to-point runs without intermediate amplification.
• 1310nm wavelength: Uses the industry-standard 1310nm wavelength for predictable signal behavior and broad interoperability with other single-mode equipment.
• Duplex SC connector: Employs duplex SC termination that aligns with many existing fiber infrastructures for easier installation and reduced re-cabling.
• Cisco form factor: Matches Cisco optics expectations and workflow for shops that standardize on Cisco-branded transceivers for inventory and support consistency.

Who It's For

The X2-10GB-LR is best suited for network administrators managing Cisco gear or mixed environments that accept standard X2 optics and need stable 10 Gbps single-mode links across campus buildings or between data closets. It is a focused choice for teams that require predictable 1310nm LR behavior and duplex SC connectors rather than multi-mode alternatives.

Professionals who need shorter-reach multi-mode modules, SFP+ ports, or non-SC connectors should look elsewhere; this module is specifically a long-reach single-mode X2 transceiver and is not intended for application-level features beyond basic physical-layer connectivity.

Pros & Cons

Pros

• Reliable 10Gbps performance suitable for backbone and aggregation links in enterprise networks.
• 10 km single-mode reach at 1310nm covers most campus and inter-building connections without extra equipment.
• Duplex SC connector keeps compatibility with many existing single-mode cabling installations.
• Cisco-branded X2 form factor simplifies inventory for teams standardizing on Cisco optics.

Cons

• Limited to single-mode LR use cases and not appropriate for short multi-mode links or SFP+ ports.
• No advanced management features included; it is a single-purpose physical transceiver.

Specifications

Product	Cisco X2-10GB-LR
Data rate	10Gbps
Standard	10GBase-LR
Fiber type	Single-mode fiber
Wavelength	1310nm
Maximum reach	10 km
Connector	Duplex SC

Our Verdict

The Cisco X2-10GB-LR is a no-frills, reliable long-reach 10Gbps transceiver that suits network teams needing predictable single-mode links up to 10 km. It represents good value where compatibility with Cisco X2 optics and duplex SC cabling is required, though those needing other form factors or short-reach multi-mode solutions should choose a different module.

Frequently Asked Questions

Is this transceiver compatible with non-Cisco switches?
It is a standard 10GBase-LR X2 transceiver for single-mode fiber, but buyers should verify hardware and firmware compatibility with non-Cisco switches before purchase.

What connector type does it use?
The module uses a duplex SC connector, which is common in single-mode fiber installations.

How far can the link run?
The module supports up to 10 km over single-mode fiber at the 1310nm wavelength.