​​Module Overview and Core Functionality​​

The ​​Cisco A99-4T-FC=​​ is a hybrid line card designed to support ​​converged data and storage networks​​. It provides ​​4 x 10GBase-T (copper) Ethernet ports​​ and ​​1 x 16G Fibre Channel (FC) interface​​, making it ideal for environments requiring cost-effective, high-speed connectivity for both IP and SAN traffic.

​​Key Technical Specifications​​

• ​​10GBase-T Ports​​: ​​4 x RJ45 copper ports​​ supporting 1/10G speeds, optimized for short-reach server connections or legacy Cat6a cabling.
• ​​Fibre Channel Integration​​: A single ​​16G FC port​​ for direct SAN connectivity, compatible with ​​Cisco MDS 9000 series switches​​ via SFP+ transceivers.
• ​​Unified Management​​: Operates under ​​Cisco NX-OS​​, enabling ​​FCoE (Fibre Channel over Ethernet)​​ for simplified SAN/IP convergence.
• ​​Chassis Compatibility​​: Designed for Cisco Nexus 5500/5600 series switches, with firmware support for ​​NX-OS 7.3(5)+​​.

​​Addressing Critical User Questions​​

​​1. How does the 10GBase-T design benefit deployment?​​

The ​​copper Ethernet ports​​ eliminate the need for SFP+ optics in scenarios where Cat6a/Cat7 cabling is already deployed, reducing costs for ​​server access layers​​ or ​​edge storage clusters​​.

​​2. Can the FC port handle modern storage workloads?​​

While the ​​16G FC port​​ supports midrange SANs, it may bottleneck ​​all-flash arrays​​ requiring 32G FC speeds. For high-performance storage, consider pairing with dedicated ​​Cisco MDS 9700 directors​​.

​​3. What licenses are required for FCoE functionality?​​

Cisco’s ​​Storage Networking License​​ is mandatory for FCoE and FC features. Ensure compatibility with existing Nexus chassis licenses to avoid deployment delays.

​​Procurement and Validation Tips​​

For verified new or refurbished units, “A99-4T-FC=” is available here. Confirm the inclusion of ​​Cisco’s Limited Lifetime Warranty (LLW)​​ and validate firmware compatibility with your Nexus platform.

​​Strategic Perspective​​

The ​​A99-4T-FC=​​ is a pragmatic choice for small-to-midsize data centers seeking to consolidate IP and storage traffic without overhauling cabling. However, its reliance on copper Ethernet and 16G FC limits scalability compared to ​​Nexus 9000​​ modules with 25/100G or NVMe-oF support. For organizations with existing Nexus 5500/5600 infrastructure, it’s a budget-friendly upgrade—especially for hyperconverged edge deployments. Newer environments, though, should prioritize platforms aligned with ​​cloud-native storage protocols​​ to avoid obsolescence.