Global Leading Market Research Publisher QYResearch announces the release of its latest report “Converged Network Adapter (CNA) – Global Market Share and Ranking, Overall Sales and Demand Forecast 2026-2032”. Based on current situation and impact historical analysis (2021-2025) and forecast calculations (2026-2032), this report provides a comprehensive analysis of the global Converged Network Adapter (CNA) market, including market size, share, demand, industry development status, and forecasts for the next few years.
For data center architects, IT infrastructure managers, and cloud service providers, the proliferation of separate networks for storage (SAN) and general-purpose data (LAN) has created significant complexity in cabling, switch ports, and adapter management. A converged network adapter (CNA), also called a converged network interface controller (C-NIC), is a computer input/output device that combines the functionality of a host bus adapter (HBA) with a network interface controller (NIC). In other words, it “converges” access to, respectively, a storage area network and a general-purpose computer network. The global market for Converged Network Adapter (CNA) was estimated to be worth US$ 120 million in 2024 and is forecast to a readjusted size of US$ 204 million by 2031 with a CAGR of 8.0% during the forecast period 2025-2031. This robust growth reflects the accelerating adoption of server virtualization, software-defined networking, and converged infrastructure in enterprise and cloud data centers, where reducing adapter count, power consumption, and cabling complexity while maintaining high performance for storage and network traffic has become a strategic imperative.
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Market Definition: Unified Storage and Network Connectivity
Converged network adapters constitute a specialized category within the data center networking hardware landscape, characterized by the integration of Fibre Channel (storage) and Ethernet (network) functionality on a single adapter. A converged network adapter (CNA), also called a converged network interface controller (C-NIC), is a computer input/output device that combines the functionality of a host bus adapter (HBA) with a network interface controller (NIC). Traditional data center architectures required separate HBAs for storage traffic (using Fibre Channel) and NICs for LAN traffic (using Ethernet), consuming multiple PCIe slots, increasing power and cooling requirements, and complicating cable management. CNAs consolidate these functions, typically using Fibre Channel over Ethernet (FCoE) or iSCSI protocols to carry storage traffic over converged Ethernet fabrics.
The market is segmented by technology type into Fiber Channel and Networking Driver implementations. Fibre Channel-based CNAs (using FCoE) dominate enterprise data center deployments, offering lossless transport and compatibility with existing Fibre Channel storage investments. Networking driver-based implementations are more common in cloud and hyper-scale environments where iSCSI or NVMe-over-Fabrics storage protocols are preferred.
By end-user, the market is segmented into SMEs and Large Enterprises. Large enterprises account for the larger revenue share, with established data center infrastructure and migration paths from legacy SAN/LAN separation. SMEs represent the faster-growing segment, as converged infrastructure reduces the complexity and cost of deploying shared storage.
Industry Dynamics: Four Pillars Shaping Market Evolution
1. Server Virtualization and Hyper-Converged Infrastructure
Some of the future market trends of CNA are: Increasing adoption of cloud-based solutions and IoT platforms for data storage, analysis, and sharing. The widespread adoption of server virtualization (VMware, Hyper-V, KVM) created the initial demand for CNAs, as virtualized servers require both network and storage connectivity for each virtual machine. Hyper-converged infrastructure (HCI) platforms, which integrate compute, storage, and networking in software-defined building blocks, rely on CNAs to provide the high-bandwidth, low-latency connectivity between nodes.
A critical distinction exists between discrete manufacturing considerations in adapter production—where individual CNAs are manufactured as discrete PCIe cards with specific port configurations—versus process manufacturing approaches in data center deployment, where CNAs must be integrated with server hardware, hypervisors, storage arrays, and network switches. This distinction has driven development of certified compatibility programs and reference architectures.
A typical case study from 2025 illustrates this market dynamic. A financial services company consolidating its data center infrastructure migrated from separate Fibre Channel HBAs and Ethernet NICs to CNAs in its new server fleet. The transition reduced per-server adapter count from 4 to 2, freed PCIe slots for GPUs, reduced power consumption by 35 watts per server, and simplified cabling. The company reported a 22% reduction in data center networking-related operational expenses following the migration.
2. High-Speed, Low-Latency Requirements for AI/ML Workloads
Growing demand for high-speed and low-latency networking solutions for data-intensive applications such as big data analytics, artificial intelligence, and machine learning. AI/ML training workloads generate significant east-west traffic between servers in distributed training clusters. CNAs supporting high-speed Ethernet (25/100/400 GbE) with RDMA (Remote Direct Memory Access) and RoCE (RDMA over Converged Ethernet) enable the low-latency, high-throughput communication essential for scaling AI training across hundreds or thousands of GPUs.
A notable trend is the integration of programmable data planes (using DPUs or SmartNICs) into CNA architectures. These programmable adapters offload networking, storage, and security functions from host CPUs, improving performance for AI/ML and cloud-native workloads.
3. Software-Defined Networking and Virtualization
Rising use of virtualization and software-defined networking (SDN) to optimize network resources and enhance scalability and flexibility. SDN decouples network control and forwarding functions, enabling centralized programmability and automation. CNAs provide the hardware forwarding plane for SDN deployments, supporting overlay protocols (VXLAN, NVGRE) and virtual switch offloads (OVS hardware acceleration).
Expanding application of CNA in various sectors such as healthcare, education, finance, and media. Each sector has distinct requirements: healthcare demands low-latency for PACS and telemedicine; finance requires deterministic performance for trading systems; media requires high-throughput for video editing and streaming.
4. Security Integration and Encryption
Enhancing integration of security and encryption features to protect data and network from cyberattacks. Modern CNAs increasingly integrate hardware-based encryption for data-in-flight (MACsec, IPsec) and data-at-rest (storage encryption offload). These features protect sensitive data without imposing host CPU overhead, critical for regulated industries and multi-tenant cloud environments.
The market is segmented by technology type into Fiber Channel and Networking Driver implementations. Broadcom, Intel, HP, CenturyLink, ATTO Technology, Cisco, IBM, and Ixia (Keysight Technologies) are among the key players.
Competitive Landscape: Networking Silicon Vendors and Adapter Manufacturers
The converged network adapter market features a competitive landscape dominated by networking silicon vendors and server OEMs. Broadcom (through its Emulex and Brocade acquisitions) leads the Fibre Channel and FCoE CNA segment. Intel dominates the Ethernet NIC and iSCSI CNA segment, with extensive server OEM relationships. Cisco offers CNAs as part of its Unified Computing System (UCS) platform. HP (through HPE) integrates CNAs into its server and converged infrastructure portfolios. ATTO Technology serves the media and entertainment storage market. IBM offers CNAs for its Power Systems servers. CenturyLink is a service provider. Ixia (Keysight Technologies) provides network test and validation equipment.
A critical competitive dynamic is the emergence of DPU (Data Processing Unit) architectures that integrate CNA functionality with additional processing capability for storage virtualization, security, and network acceleration. This trend could reshape the adapter market, with DPUs potentially displacing traditional CNAs in next-generation data centers.
Strategic Implications for Decision-Makers
For data center architects, CNA adoption enables consolidation of separate storage and network fabrics, reducing adapter count, cabling complexity, power consumption, and PCIe slot usage. The primary trade-off is the requirement for converged Ethernet switches supporting lossless transport (DCB, PFC, ETS).
For IT infrastructure managers, migration from separate HBAs and NICs to CNAs requires coordination between server, storage, and network teams. Certified compatibility with existing Fibre Channel storage arrays is essential for mixed environments.
For investors, the 8.0% CAGR forecast signals a growth market driven by server virtualization, AI/ML workloads, and software-defined data center trends. Companies with strong positions in FCoE, RoCE, and DPU technologies are best positioned for sustained growth.
Conclusion: A Market Defined by Data Center Consolidation
The converged network adapter market occupies a strategic position in data center infrastructure. The projected expansion to US$ 204 million by 2031 reflects the continued demand for simplified, high-performance connectivity in virtualized and cloud environments. For data center operators, CNAs reduce complexity and operational costs; for server and storage vendors, enablers of converged infrastructure solutions; for the industry, a technology that has successfully merged previously separate networking and storage domains.
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