Finisar FTLX1471D3BCL 10.5Gb/s SFP+ Transceiver - 10km Reach

In this review the Finisar FTLX1471D3BCL is evaluated as a practical choice for network engineers and IT teams that need a reliable long-reach 10G SFP+ module. The bottom line: it is a genuine, standards-compliant transceiver that delivers 10GBASE-LR performance over singlemode fiber to 10 km while supporting 9.95Gb/s to 11.3Gb/s data rates, making it a straightforward swap-in replacement for compatible switches and optics bays.

Key Features

• Genuine Finisar module: Using an original FTLX1471D3BCL ensures compatibility with hardware validated for Finisar optics.
• Wide data rate support: Operates from 9.95Gb/s to 11.3Gb/s to cover 10G Ethernet and related links without negotiation issues.
• Long singlemode reach: The uncooled 1310nm DFB laser provides reliable transmission up to 10 km over singlemode fiber for metro and campus links.
• Standards compliance: Complies with 10GBASE-LR/-LW and 10 Gb/s Fibre Channel, making it suitable for mixed networking and storage environments.
• RoHS 6 compliant: Built to current environmental standards for easier deployment in regulated installations.
• Lifetime warranty: The included lifetime warranty reduces risk for purchases intended to replace failed or legacy optics.

Who It's For

This transceiver is aimed at IT professionals, network administrators, and integrators who need a dependable 10G SFP+ module for long-reach connections between switches, routers, or SAN equipment. It works well in enterprise wiring closets, data center interconnects, and campus backbone links where singlemode fiber is already in place.

Those working in short-reach, multimode environments, or who require CWDM/DWDM functionality should look elsewhere; this module is purpose-built for uncooled 1310nm singlemode links and does not replace multimode or wavelength-multiplexing optics.

Pros & Cons

Pros

• Genuine Finisar hardware improves compatibility and reduces the chance of port locking on many vendors' equipment.
• Supports the full 10GBASE-LR spec for up to 10 km, suitable for most campus and metro spans.
• RoHS 6 compliance and lifetime warranty provide environmental and purchase protections.
• Uncooled DFB laser reduces power and cooling complexity compared with actively cooled optics.

Cons

• Not intended for multimode fiber installations, so it is not a one-size-fits-all optic.
• Specific vendor compatibility can vary; in rare cases a switch may require manual acceptance of third-party optics.

Specifications

Brand	Finisar
Model	FTLX1471D3BCL
Data rate	9.95Gb/s to 11.3Gb/s
Protocol	10GBASE-LR / 10 Gb/s Fibre Channel
Wavelength	1310nm (DFB)
Reach	Up to 10 km over singlemode fiber
Compliance	RoHS 6, SFP+ form factor

Our Verdict

The Finisar FTLX1471D3BCL is a solid choice for network teams who need a standards-compliant, long-reach 10G SFP+ transceiver that fits existing singlemode infrastructure and reduces compatibility risk. Its lifetime warranty and genuine manufacturer origin make it good value for maintenance and upgrade projects where predictable behavior and standards adherence matter most.

Frequently Asked Questions

Will this work in any SFP+ slot?
It is compatible with most equipment that accepts standard SFP+ 10GBASE-LR modules, though some vendors require optics to be accepted or trusted in firmware.

What fiber type and distance does it support?
It is designed for singlemode fiber with a reach up to 10 km using the 1310nm uncooled DFB laser.

Is this module covered by warranty?
Yes, the product includes a lifetime warranty from the seller or manufacturer as specified with the unit.