Home/Network & Accessories/Transceivers/FWLF1634RL41 - Finisar 4.25Gbps 1000Base-ZX DWDM S...

Safe checkout

Secure payments

Fast dispatch

12 day handling

Free shipping

U.S. ground

Warranty & RMA

Support after delivery

FWLF1634RL41 - Finisar 4.25Gbps 1000Base-ZX DWDM Single-mode Fiber 80km 1544.53nm Duplex LC Connector SFP Transceiver Module

SKU FWLF1634RL41
  • Product Type: SFP Transceiver Module
  • Data Rate: 4.25Gb/s
  • Fiber Type: Single-Mode Fiber (SMF)
  • Transmission Distance: 80km
  • Connector Type: Duplex LC
  • Wavelength: Typically 1550nm (for long reach SMF)
  • Application: Long-haul networking, carrier Ethernet, data centers
  • Form Factor: Pluggable
Available to order

FWLF1634RL41 isn't on our shelf today — we source it to order. Request a quote and we'll confirm price and lead time within one business day.

Key specifications

See full specs ↓
Product Type
SFP Transceiver Module
Data Rate
4.25Gb/s
Fiber Type
Single-Mode Fiber (SMF)
Max Distance
80km
Connector
Duplex LC
Wavelength
1550nm (typical)

Product details

The Finisar FWLF1634RL41 is a high-performance SFP (Small Form-Factor Pluggable) transceiver module. It is designed for 4.25Gb/s data rates and operates over single-mode fiber (SMF) for long-distance communication. The module features an 80km transmission range and utilizes a duplex LC connector for reliable fiber optic connections.

Technical Information

Product TypeSFP Transceiver Module
Data Rate4.25Gb/s
Fiber TypeSingle-Mode Fiber (SMF)

Additional Specifications

Max Distance80km
ConnectorDuplex LC
Wavelength1550nm (typical)

Description

The Finisar FWLF1634RL41 is a high-performance SFP (Small Form-Factor Pluggable) transceiver module engineered for demanding long-reach optical networking applications. Operating at a data rate of 4.25Gb/s, this module is suitable for a variety of high-speed communication protocols, including Fibre Channel and certain Ethernet standards where extended reach is required. Its design prioritizes reliability and performance over long distances, making it a critical component in carrier networks and enterprise backbones. The module is specifically designed for use with single-mode fiber (SMF), which allows for the transmission of optical signals over significantly greater distances compared to multi-mode fiber. The FWLF1634RL41 boasts an impressive maximum transmission distance of 80 kilometers, making it ideal for connecting geographically dispersed locations or for backbone links within large campuses or metropolitan areas. It typically operates at a wavelength of 1550nm, which is optimized for long-haul transmission on single-mode fiber due to lower attenuation at this wavelength. Connectivity is established via a standard duplex LC connector, ensuring a secure and robust physical connection to the fiber optic cable. The SFP form factor allows for hot-swapping, meaning the transceiver can be inserted or removed from a compatible network device without powering down the system, facilitating maintenance and upgrades. The Finisar FWLF1634RL41 is a reliable choice for network engineers seeking high-bandwidth, long-distance optical connectivity solutions.

Condition: Refurbished

Free U.S. ground shipping

Typically 12 days handling, 37 days in transit.

Purchase orders accepted

Government, enterprise, data center and small business.

Warranty & RMA support

See warranty and returns.

Buying 10+ units?

Get volume pricing and availability for FWLF1634RL41.

Running security check — you can keep filling the form.

Questions about this part?

Compatibility, condition, lead times — ask a specialist.

(888) 988-8093

Related products

Loading related inventory…
FWLF1634RL41 - Finisar 4.25Gbps 1000Base-ZX DWDM Single-mode Fiber 80km 1544.53nm Duplex LC Connector SFP Transceiver Module | CoreRex