Safe checkout
Secure payments
Fast dispatch
1–2 day handling
Free shipping
U.S. ground
Warranty & RMA
Support after delivery
Finisar FTRJ8519P1BNL-B1 2.125Gb/s SFP 550m Duplex LC MMF Transceiver
- Speed: 2.125 Gb/s (Fibre Channel) / 1 Gbps (Gigabit Ethernet).
- Form Factor: SFP (Small Form-Factor Pluggable).
- Interface: Duplex LC connector.
- Media Type: Multi-Mode Fiber (MMF).
- Maximum Distance: 550 meters.
- Wavelength: Typically 850nm (for MMF).
- Manufacturer: Finisar.
- Designed for Fibre Channel SANs and Gigabit Ethernet networks.
- Hot-swappable.
Was $54.94 · You save $7.94
Key specifications
See full specs ↓- Product Type
- Transceiver Module
- Speed
- 2.125Gb/s
- Form Factor
- SFP
- Connector
- Duplex LC
- Fiber Type
- Multi-Mode Fiber (MMF)
- Wavelength
- 850nm
Product details
The Finisar FTRJ8519P1BNL-B1 is a 2.125Gb/s SFP transceiver module for multi-mode fiber, supporting distances up to 550 meters. It uses a duplex LC connector and is designed for Fibre Channel or Gigabit Ethernet applications.
Technical Information
| Product Type | Transceiver Module |
| Speed | 2.125Gb/s |
| Form Factor | SFP |
| Connector | Duplex LC |
Additional Specifications
| Fiber Type | Multi-Mode Fiber (MMF) |
| Wavelength | 850nm |
| Max Distance | 550m |
| Manufacturer | Finisar |
Description
The Finisar FTRJ8519P1BNL-B1 is a high-performance SFP (Small Form-Factor Pluggable) transceiver module designed for multi-mode fiber optic applications. It supports data rates of up to 2.125 Gb/s, making it suitable for Fibre Channel networks (e.g., 2GFC) and also compatible with Gigabit Ethernet applications. This versatility allows it to be used in a variety of storage and networking environments. The module features a duplex LC connector, which is the standard interface for fiber optic connections, and operates over multi-mode fiber (MMF). It is engineered to achieve distances of up to 550 meters, providing a reliable solution for intra-building or campus network links where moderate reach is required. The typical operating wavelength for multi-mode SFP transceivers is 850nm. As a hot-swappable component, the FTRJ8519P1BNL-B1 can be installed or removed from network switches or host bus adapters (HBAs) without interrupting network operations. Finisar is a well-respected manufacturer in the optical transceiver market, known for producing reliable and high-quality components. This transceiver is ideal for storage area networks (SANs) and Ethernet networks requiring robust connectivity over multi-mode fiber.
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 FTRJ8519P1BNL-B1.




