The SuperMicro AOC-S25G-b2S is a server add-on card manufactured by SuperMicro. It features a low-profile form factor and supports two 25 Gigabit Ethernet SFP28 ports through a PCIe 3.0 x8 interface, enabling up to 25 Gbps transmission speed per port.

Compatible with servers supporting standard PCIe slots, the dual-port configuration allows for high-bandwidth connectivity in data center or enterprise environments requiring increased throughput between nodes. The module uses passive cooling and draws power from the host system via its PCI Express slot without external power connectors. Mounting hardware for both full-height and low-profile brackets is typically included based on chassis requirements.

SuperMicro AOC-S25G-b2S: Dual Port SFP+ 25GbE Network Adapter.