Lenovo Flex System CN4054S 4-Port 10Gb Adapter | FCoE, PCIe 3.0 x8

Keep storage traffic moving through a compact adapter designed for Flex System compute environments. The Lenovo Flex System CN4054S 4-port 10Gb Virtual Fabric Adapter brings 10 Gbit/s data transfer, FCoE host bus adapter support, and PCIe 3.0 x8 host connectivity into a plug-in card form factor that fits dense blade deployments. This adapter is built for teams that need to connect virtualized workloads to shared storage without adding unnecessary complexity at the server edge. Its 4-port design supports flexible fabric segmentation, while compatibility with Flex System PCIe Expansion Node platforms helps standardize deployments across supported compute nodes. For infrastructure teams, that means fewer moving parts, cleaner cabling, and a more controlled path for storage connectivity. When the environment calls for predictable throughput and a storage-aware fabric adapter, this model fits the role. It is a practical choice for organizations extending Flex System infrastructure where FCoE support and 10Gb connectivity are required, and where the adapter must slot cleanly into existing Lenovo compute architectures.