Lenovo Flex System CN4054S 4-Port 10Gb Virtual Fabric Adapter

Introducing the Lenovo Flex System CN4054S, a purpose-built plug-in card that brings high-speed, flexible networking to Lenovo server environments. Designed as a four-port 10Gb Virtual Fabric Adapter with FCoE (Fibre Channel over Ethernet) capabilities, the CN4054S offers an optimized path for virtualization, storage, and data-center traffic. This adapter is engineered to simplify complex I/O architectures by consolidating network and storage fabrics onto a single fabric, reducing cabling, and improving manageability without sacrificing performance. The CN4054S integrates seamlessly into PCIe 3.0 x8 slots, delivering substantial bandwidth while preserving room for other critical components in dense blade and chassis configurations. IT teams seeking scalable virtualization, improved SAN access, and an efficient, reliable network fabric will appreciate the CN4054S for its straightforward deployment, robust reliability, and Lenovo-backed support ecosystem. From virtual machines to traditional storage networking, this adapter helps you deploy, scale, and optimize modern compute environments with confidence.

• Performance and versatility: The CN4054S provides four 10Gb ports that support virtual fabric provisioning, enabling multiple virtual NICs and storage paths on a single physical adapter. With up to 8000 MB/s bandwidth, this card is designed to handle data-intensive workloads, virtualization clusters, and SAN traffic with low latency and steady throughput. The option to carve out dedicated fabrics ensures isolation of storage, management, and compute traffic, driving predictable performance across demanding applications.
• FCoE integration for streamlined storage: As a Fibre Channel over Ethernet host bus adapter, the CN4054S unifies storage and network fabrics onto a single Ethernet-based infrastructure. This consolidation reduces cable clutter, lowers total cost of ownership, and simplifies storage access for servers running mission-critical databases, virtualization platforms, and enterprise workloads. The FCoE capability is designed to deliver reliable SAN connectivity while maintaining compatibility with existing Fibre Channel storage targets and SAN switches.
• PCIe 3.0 x8 compatibility for modern chassis: Built to fit contemporary Lenovo Flex System environments, the CN4054S plugs into PCI Express 3.0 x8 slots, balancing bandwidth, power efficiency, and chassis density. This compatibility makes it suitable for both standalone servers and dense blade configurations, enabling administrators to deploy high-speed networking without reconfiguring existing hardware or sacrificing expansion room for other peripherals.
• Plug-in card simplicity with enterprise-grade management: The CN4054S is engineered as a straightforward PCIe plug-in card that installs quickly and cleanly. Once in place, Lenovo’s management tools and drivers provide a familiar interface for configuring virtual fabrics, monitoring throughput, and optimizing performance. This ease of use helps IT teams accelerate deployments, reduce downtime, and streamline ongoing maintenance across hybrid cloud and on-premises environments.
• Ideal for virtualization and data-center modernization: With four 10Gb ports and robust virtualization support, the CN4054S is well-suited for evolving workloads, including virtualized desktops, server virtualization clusters, cloud-ready applications, and storage-intensive databases. The adapter’s virtualization features enable flexible network segmentation and scalable bandwidth, making it a forward-looking choice for organizations planning consolidation, migration, or expansion within Lenovo Flex System ecosystems.

Technical Details of Lenovo Flex System CN4054S

• Product family: Lenovo Flex System CN4054S
• Ports: 4 x 10 Gb/s Ethernet ports with virtual fabric capabilities
• Interface: PCI Express 3.0 x8
• Functionality: FCoE (Fibre Channel over Ethernet) host bus adapter with virtualization support
• Bandwidth: Up to approximately 8000 MB/s total bandwidth
• Form factor: PCIe plug-in card designed for Lenovo Flex System chassis

How to Install Lenovo Flex System CN4054S

• Power down the server and unplug the system to ensure safe handling of the chassis and expansion cards.
• Remove the access panel or required covers to expose the PCIe expansion area and identify an available PCIe 3.0 x8 slot compatible with the CN4054S.
• Gently insert the CN4054S into the PCIe slot until it is seated firmly. Ensure the backplate aligns with the chassis I/O slot for proper mounting.
• Reconnect any required cables per Lenovo installation guidelines, then reassemble the chassis and power the system back on.
• Install the latest Lenovo Flex System drivers and management tools, then configure the virtual fabrics and FCoE settings in the management console for optimal performance and monitoring.

Frequently Asked Questions

• Q: What is the Lenovo CN4054S used for? A: It is a 4-port 10Gb Virtual Fabric Adapter with FCoE capabilities designed to deliver fast Ethernet connectivity and Fibre Channel over Ethernet storage access within Lenovo Flex System environments, enabling virtualization, storage consolidation, and flexible network fabrics.
• Q: How many ports does the CN4054S have and what speeds are supported? A: The CN4054S provides four 10Gb ports, optimized for virtualized networking and storage traffic on a high-speed fabric designed to support demanding workloads.
• Q: What interface does the CN4054S require? A: It requires a PCI Express 3.0 x8 slot, making it suitable for modern servers and Lenovo Flex System chassis that provide this expansion interface.
• Q: Is FCoE supported with CN4054S? A: Yes. The CN4054S includes Fibre Channel over Ethernet capabilities, enabling streamlined storage access across SAN targets while using Ethernet-based fabric.
• Q: How do I install and configure the CN4054S? A: Install the card into a PCIe 3.0 x8 slot, connect any required cables per your storage and network topology, boot the system, install Lenovo drivers/manage tools, and configure virtual fabrics and FCoE settings using the Lenovo management interface.
• Q: Is the CN4054S suitable for virtualization-heavy workloads? A: Yes. With four 10Gb ports and virtual fabric support, it is well-suited for virtualization deployments, cloud-ready infrastructure, and environments requiring flexible, scalable network and storage connectivity.