Supermicro AOC-A25G-b2S - Netzwerkadapter - Advanced I/O Module (AIOM)

Modern data centers demand high-speed, low-latency networking to handle virtualization, cloud computing, and storage traffic. The Supermicro AOC-A25G-B2S-O Advanced I/O Module (AIOM) addresses this need with dual 25 Gigabit Ethernet ports, delivering up to 50 Gbps aggregate bandwidth in a compact, energy-efficient form factor. Built on the Mellanox ConnectX-4 Lx controller, this adapter offloads CPU-intensive tasks and accelerates data-intensive applications.

Who is it for

This AIOM is ideal for IT professionals deploying Supermicro servers in enterprise data centers, cloud service providers, and high-performance computing environments. It suits those needing to upgrade network connectivity to 25GbE for improved throughput, reduced latency, and enhanced virtualization support.

Main features

• Dual 25GbE SFP28 ports with 50 Gbps total bandwidth
• Mellanox ConnectX-4 Lx EN controller for advanced offloads
• PCI Express 3.0 x8 host interface via Supermicro AIOM slot
• Support for RDMA over Converged Ethernet (RoCE), SR-IOV, and NVMe over Fabrics
• Hardware offloads for TCP/UDP/IP checksum, LSO, RSS, and TSS
• Jumbo frame support up to 9.6KB and VLAN tagging
• PXE boot for network-based OS deployment
• Low power consumption (~12W typical)

Specifications

• Form Factor: Advanced I/O Module (AIOM)
• Ports: 2 x 25 Gigabit Ethernet SFP28
• Data Transfer Rate: 25 Gbps per port (50 Gbps aggregate)
• Controller: Mellanox ConnectX-4 Lx EN
• Host Interface: PCI Express 3.0 x8
• Network Technology: 25 Gigabit Ethernet
• Features: RoCE, SR-IOV, NVMe-oF, PXE Boot, Jumbo Frames (up to 9.6KB), VLAN Tagging
• OS Support: Windows Server, Linux, VMware ESXi
• Power Consumption: ~12W typical
• Compliance: IEEE 802.3ae, IEEE 802.3by, IEEE 802.1Q, IEEE 802.1p
• Connector: SFP28
• LED Indicators: Link/Activity

Tips

Ensure your Supermicro server has an available AIOM slot and compatible PCIe x8 lanes. For optimal performance, use SFP28 transceivers or DAC cables rated for 25GbE. Update the adapter firmware and drivers to the latest versions from Supermicro to enable all features and ensure stability.