4XC1R69219 NVIDIA ConnectX-6 DX 25G PCIe 4.0 x8 Ethernet Network Card

Low-Profile PCIe 4.0 Ethernet Network Adapter with RoCE v2 RDMA using the 4XC1R69219

The 4XC1R69219 is a low-profile, single-port 25GbE NIC built on the NVIDIA ConnectX-6 Dx platform, designed to deliver deterministic uplink performance for virtualized servers, storage fabrics, and HPC nodes. By combining a PCIe 4.0 x8 host interface with SFP28 connectivity, the 4XC1R69219 targets high-throughput east-west traffic while maintaining predictable latency under mixed compute and storage workloads.

Architecturally, the 4XC1R69219 focuses on reducing CPU overhead through hardware offloads and RDMA acceleration. RoCE v2 enables low-latency, lossless Ethernet fabrics for cluster communication and NVMe-oF transports, while SR-IOV provides scalable I/O virtualization with strong isolation for multi-tenant hypervisors. Integrated IPsec and TLS crypto offloads help preserve core cycles for application processing, and IEEE 1588 PTP support improves time synchronization where microservice tracing, packet capture, or financial workloads require consistent timing. Boot support via PXE and UEFI PXE streamlines bare-metal provisioning at rack scale.

Why Choose the 4XC1R69219?

The 4XC1R69219 delivers a balanced density-to-performance profile by pairing a compact low-profile form factor with a PCIe 4.0 x8 interface tuned for modern server platforms. It supports enterprise reliability through mature driver ecosystems, predictable offload behavior, and a scalability path from standard 25GbE uplinks to RDMA-enabled fabrics for clustered growth.

NVIDIA engineers ConnectX adapters for sustained data center operation, emphasizing stable throughput, low latency, and feature completeness aligned with current virtualization, security, and disaggregated storage standards.

Key Applications:

• 25GbE server uplinks
• Virtualization hosts with SR-IOV
• RoCE v2 RDMA clusters
• NVMe over Fabrics (NVMe-oF)
• Low-latency microservices

At Happyware - Server Hardware you benefit from non-binding offers tailored to your rollout plan for the 4XC1R69219 and extended warranty options of up to 6 years to secure long-term availability for your NVIDIA ConnectX-6 Dx based network standard.