Safe checkout
Secure payments
Fast dispatch
1–2 day handling
Free shipping
U.S. ground
Warranty & RMA
Support after delivery
FWLF1634RL61 - Finisar 4.25Gbps 1000Base-ZX DWDM Single-mode Fiber 80km 1528.77nm Duplex LC Connector SFP Transceiver Module
- Data Rate: 4.25Gb/s
- Form Factor: SFP
- Fiber Type: Single-Mode Fiber (SMF)
- Maximum Reach: 80km
- Connector Type: Duplex LC
- Wavelength: Not specified (likely 1550nm for long-haul SMF)
FWLF1634RL61 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
- Transceiver Module
- Interface
- SFP
- Data Rate
- 4.25 Gb/s
- Fiber Mode
- Single-Mode Fiber (SMF)
- Reach
- 80 km
- Connector
- Duplex LC
Product details
The Finisar FWLF1634RL61 is a 4.25Gb/s SFP transceiver module designed for long-haul single-mode fiber (SMF) communication up to 80km. It features a duplex LC connector.
Technical Information
| Product Type | Transceiver Module |
| Interface | SFP |
| Data Rate | 4.25 Gb/s |
Additional Specifications
| Fiber Mode | Single-Mode Fiber (SMF) |
| Reach | 80 km |
| Connector | Duplex LC |
Description
The Finisar FWLF1634RL61 is a high-performance SFP transceiver module engineered for demanding long-reach applications, supporting data rates of up to 4.25Gb/s over single-mode fiber (SMF). With an impressive maximum transmission distance of 80 kilometers, this module is designed for critical backbone and metropolitan area network (MAN) deployments where extended connectivity is paramount. This transceiver utilizes a duplex LC connector, the industry standard for fiber optic connections, ensuring a secure and reliable interface. The module's capability to operate over 80km of SMF makes it suitable for connecting geographically dispersed sites, such as linking different campuses or extending network reach across a city. The specific wavelength is typically in the 1550nm range, optimized for long-distance transmission. Manufactured by Finisar, a leader in optical communication technology, the FWLF1634RL61 is built to deliver exceptional performance and reliability. Its hot-swappable design allows for easy integration and maintenance without network downtime. This module is essential for extending high-speed network infrastructure over significant distances, providing a robust and efficient optical link.
Condition: Refurbished
Free U.S. ground shipping
Typically 1–2 days handling, 3–7 days in transit.
Purchase orders accepted
Government, enterprise, data center and small business.
Buying 10+ units?
Get volume pricing and availability for FWLF1634RL61.



