Supermicro AOC-S40G-I1Q-O Single-Port 40GbE QSFP+ PCIe 3.0 x8 Network Interface Card

The Supermicro AOC-S40G-I1Q-O is a high-performance single-port 40 Gigabit Ethernet network interface card designed for data centers and enterprise environments. Based on the Mellanox ConnectX-3 Pro chipset, it delivers low-latency, high-bandwidth connectivity for demanding applications such as virtualization, storage, and high-performance computing.

Advantages

With support for 40GbE speeds, SR-IOV virtualization, and RDMA over Converged Ethernet (RoCE), this adapter maximizes throughput and reduces CPU overhead. Its low-profile form factor with included full-height bracket ensures compatibility with various server chassis.

Suitable for

• Data center servers requiring high-speed network connectivity
• Virtualized environments leveraging SR-IOV for efficient I/O
• Storage networks using iSCSI or FCoE offload
• High-performance computing clusters needing low-latency interconnects

Key specifications

• Chipset: Mellanox ConnectX-3 Pro
• Host Interface: PCI Express 3.0 x8
• Network Ports: 1 x QSFP+
• Data Transfer Rate: 40 Gbps (40GbE)
• Form Factor: Low-profile (full-height bracket included)
• Supported Standards: IEEE 802.3ba, IEEE 802.3ae
• Virtualization: SR-IOV
• Offload: TCP/UDP/IP Checksum, LSO, LRO
• RDMA: RoCE
• Storage Offload: iSCSI, FCoE
• Jumbo Frame Support: Up to 9.6 KB
• PXE Support: Yes
• Power Consumption: 10-12W typical
• Cooling: Passive heatsink
• Compliance: RoHS, CE, FCC, UL, VCCI, RCM

Recommendations

This adapter is ideal for upgrading server connectivity to 40GbE, providing a cost-effective solution for high-bandwidth applications. Ensure your system has an available PCIe 3.0 x8 slot and proper cooling for optimal performance.