Broadcom N1800GO 800GbE OCP 3.0 Adapter

The Broadcom N1800GO is a single-port 800GbE OCP 3.0 Ethernet adapter built on Broadcom's scalable 800G Ethernet controller architecture (BCM57708, code-named "Thor Ultra") and designed for AI/ML training clusters, high-performance computing, and hyperscale data centers. The adapter presents one 800Gbps Ethernet port in the OSFP112 cage and connects to the host over a PCIe 6th Generation x16 interface, matching the bandwidth of modern GPU/XPU platforms. Because AI workloads are highly parallel and latency-sensitive, the N1800GO extends RDMA over Converged Ethernet (RoCEv2) with packet-level multipathing, out-of-order packet delivery, hardware-based selective retransmission, programmable congestion control, and advanced telemetry to keep tail latency low at scale. Platform security is anchored in a silicon Root-of-Trust with secure boot, attestation, and inline PSP-based encryption/decryption. Multi-host connectivity and NIC partitioning let several CPUs or XPUs share a single adapter, while TruFlow and TruManage offload virtual-switch processing and simplify data-center-scale manageability.