Broadcom N1400GD Single-Port 400 Gb/s QSFP-DD PCI Express 5.0 x16 OCP 3.0 Ethernet Network Interface Card | BCM957608-N1400GDP00

Broadcom N1400GD — Single-Port 400G OCP 3.0 PCIe 5.0 Ethernet Adapter

Based on Broadcom's scalable 400G Ethernet controller architecture, the N1400GD 1x400G OCP 3.0 adapter is engineered to build highly scalable, feature-rich networking solutions for the most demanding server environments — spanning Artificial Intelligence (AI), Machine Learning (ML), high-performance computing (HPC), cloud and enterprise data center servers, Network Function Virtualization, NVMe storage disaggregation, Mobile Edge Computing, and storage server deployments. By combining a high-bandwidth Ethernet controller with a unique set of highly optimized hardware acceleration engines, the N1400GD enhances network performance and improves server efficiency at every layer of the modern data center stack.

400G OCP 3.0 Flexibility — Single Port, Multiple Speeds

The N1400GD delivers standards-compliant 400G line-rate, full-duplex throughput via a QSFP112-DD OCP 3.0 form factor, with multi-speed support across 400/200/100/50/25G on a single port. High-speed SerDes capable of 100/50G PAM4 and 25G NRZ.

4th-Gen RoCE with Hardware Congestion Control — Lowest Latency RDMA at Scale

The N1400GD supports fourth-generation, standards-based RDMA over Converged Ethernet (RoCE) with hardware-based congestion control, delivering the lowest latency in real-life scenarios and dramatically reducing RoCE deployment complexity at scale. Purpose-built for the performance requirements of AI/ML training clusters, Frontend and GPU server.

TruFlow™ Line-Rate vSwitch Offload & Multi-Host Architecture — Free Your CPUs

The TruFlow™ engine delivers line-rate offload for virtual switch processing, freeing CPU cycles to increase virtual machine density across cloud and enterprise server deployments. Multi-host support allows multiple CPUs to connect to a single Ethernet adapter, maximizing hardware utilization and reducing infrastructure costs. NIC partitioning with 16 physical functions (PFs) enables flexible, isolated multi-tenant workload management — ideal for cloud providers and enterprises running shared, high-density server infrastructure.

Secure OCP 3.0 Adapter

Security is built into the N1400GD at the silicon level. The adapter delivers secure OCP 3.0 adapter solution, with secure boot and hardware attestation anchored in Broadcom's Silicon Root-of-Trust (RoT) — providing unparalleled platform security for zero-trust data center architectures and the most stringent enterprise compliance frameworks.