
Huawei FCLF-8521-3 1000BASE-T copper SFP transceiver module.
The Huawei FCLF-8521-3 is a 1000BASE-T copper SFP transceiver module manufactured by Finisar. This small form-factor pluggable module enables Gigabit Ethernet connectivity over standard Category 5 or better copper cabling, providing a flexible solution for network infrastructure where fibre deployment is impractical or unnecessary.
The FCLF-8521-3 is designed for use in switches, routers and network interface cards requiring Gigabit Ethernet copper connectivity. It supports auto-negotiation and operates over distances up to 100 metres using standard RJ-45 connections, making it suitable for data centre, enterprise LAN and telecommunications applications.
This transceiver follows the SFP MSA (Multi-Source Agreement) standard, ensuring broad compatibility across multiple vendor platforms. The module is available in refurbished condition, offering a cost-effective option for network expansion or replacement purposes.
Available from Tech Star as new or refurbished stock. Submit a price enquiry for availability and lead time.

| Manufacturer | Huawei |
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| Manufacturer | Huawei |
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| Manufacturer | Huawei |
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| Key Features | 1000BASE-T copper interface; RJ-45 connector; Hot-swappable SFP form factor; Auto-negotiation support |
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| Applications | Enterprise LAN connectivity; Data centre copper uplinks; Telecommunications infrastructure |
| Compatibility | Huawei switches and routers; SFP MSA compliant equipment |
| Specifications | 1000BASE-T; RJ-45 interface; Up to 100m over Cat5e/Cat6; SFP form factor |
| Platform | SFP Transceiver |
| Manufacturer | Huawei |
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