Network adapter HP Ethernet Adapter 546SFP 10G 2-port, SFP+ dual-port 10GbE

The HP Ethernet Adapter 546SFP 10G 2-port is a server network interface card with two SFP+ ports that support 10 Gigabit Ethernet. Designed for data center and enterprise server environments, this dual-port 10GbE adapter provides high-throughput connectivity suitable for virtualization, storage area networks and clustered systems. Its compact PCIe form factor and industry-standard SFP+ interfaces allow flexible deployment with fiber or direct-attach connections, and the dual-port layout enables link redundancy or aggregation to improve throughput and resilience.

Advantages

This network adapter delivers consistent 10GbE performance across both ports while maintaining low CPU overhead through offload features and optimized drivers. The SFP+ interfaces provide flexible cabling options, including multimode or single-mode fiber and direct-attach copper, which helps adapt the card to existing cabling infrastructure. Dual-port capability supports failover and link aggregation for higher available bandwidth and simplified network management in clustered or virtualized server deployments.

Suitable for

• Server virtualization and hyper-converged infrastructure
• Storage area networks (iSCSI, NFS) and SAN front-end connectivity
• High-performance computing clusters and distributed applications
• Redundant or aggregated uplinks to aggregation switches and core networks

Key specifications

• Interface type: two SFP+ ports supporting 10 Gigabit Ethernet
• Form factor: server PCIe network adapter (low-profile compatible depending on server chassis)
• Supported media: fiber (multimode/single-mode) and direct-attach copper with compatible SFP+ modules or cables
• Network features: link aggregation, link redundancy (failover), VLAN tagging support
• Typical use: data center and enterprise server networking, storage and virtualization

How to use

Install the adapter into an available PCIe slot in a supported server following the server manufacturer's guidance for safe handling and ESD precautions. Insert compatible SFP+ modules or direct-attach SFP+ cables into the ports, then connect to the appropriate switch or storage device. After physical installation, install the vendor-supplied drivers or use the operating system's supported driver package to enable the adapter. Configure link settings, VLANs, or link aggregation through the server OS or management interface according to network design.

Usage recommendations

For optimal performance, use matching SFP+ modules or direct-attach cables certified for 10GbE, keep firmware and drivers up to date, and configure link aggregation or redundancy in line with your network architecture. Verify server PCIe slot bandwidth and lane configuration to ensure full 10GbE throughput per port.