
Finisar FCLF8521P2BTL active copper SFP transceiver module.
The Finisar FCLF8521P2BTL is an active copper SFP transceiver designed for 1000BASE-T Gigabit Ethernet applications. This module provides electrical connectivity over standard Category 5 or better copper cabling, enabling network equipment with SFP ports to connect to copper-based infrastructure without requiring dedicated RJ-45 ports.
Copper SFP transceivers are commonly deployed in enterprise switching and routing environments where flexibility is required between fibre and copper connectivity. The FCLF8521P2BTL allows network engineers to utilise existing copper cabling infrastructure whilst maintaining the port density benefits of SFP-based switching platforms.
Finisar, now part of II-VI Incorporated, was a leading manufacturer of optical and copper transceiver modules. The FCLF8521P2BTL remains widely compatible with multi-vendor switching platforms that support the SFP MSA standard for copper transceivers.
Available from Tech Star as new or refurbished stock. Submit a price enquiry for availability and lead time.

| Platform | FTLF8519P3BTL Series |
|---|---|
| Manufacturer | Finisar |
| Key Features | 1000BASE-T copper SFP; RJ-45 connector interface; Hot-swappable SFP form factor; MSA compliant design |
|---|---|
| Applications | Enterprise LAN switching; Data centre copper connectivity; Network infrastructure upgrades |
| Compatibility | Multi-vendor SFP-compatible switches; Cisco, Juniper, HP and other MSA-compliant platforms |
| Specifications | 1000BASE-T Gigabit Ethernet; SFP form factor; RJ-45 copper interface; Category 5 cabling support |
| Manufacturer | Finisar |
Prices change daily based on stock and supply.
Send your requirements and we’ll respond quickly with current pricing and availability.
WhatsApp: HAHosting 447537149341