P21112-B21 Intel E810-CQDA2 Ethernet 100Gb 2-port QSFP28 Adapter for HPE

The P21112-B21 Intel E810-CQDA2 Ethernet 100Gb 2-port QSFP28 Adapter for HPE is a premier, high-bandwidth networking infrastructure asset precision-engineered to meet the relentless throughput and performance demands of modern enterprise data centers, high-performance computing (HPC) environments, and hyper-scale cloud deployments.

Equipped with dual physical ports utilizing Quad Small Form-factor Pluggable 28 (QSFP28) technology, this network interface card delivers a staggering total bandwidth capability of up to 200 Gbps. It provides system architects with the high-velocity data pipeline required to eliminate critical input/output (I/O) bottlenecks within massive distributed storage networks, large-scale virtualization clusters, and intensive artificial intelligence (AI) or machine learning processing chains.

Built upon the advanced Intel Ethernet 800 Series controller architecture, this adapter introduces powerful hardware optimization algorithms such as Application Device Queues (ADQ) and Dynamic Device Personalization (DDP). These capabilities allow the network interface to intelligently prioritize critical application traffic, streamline packet processing, and significantly reduce latency fluctuations across the network fabric.

This network interface card leverages a high-bandwidth PCI Express (PCIe) bus interface designed to match the massive throughput of the 100GbE physical ports, ensuring synchronous, full-line-rate communication without internal bus saturation. The dual-port QSFP28 architecture introduces exceptional deployment flexibility, accommodating high-speed optical transceivers (SR4/LR4) or cost-effective Direct Attach Copper (DAC) twinaxial cabling arrays for streamlined top-of-rack switch links.

This multi-port configuration is perfect for establishing robust network segmentation, strict link aggregation (NIC teaming) for maximized bandwidth utilization, and automated multi-path failover to sustain uninterrupted enterprise uptime.

Furthermore, the P21112-B21 is completely optimized for modern software-defined data centers (SDDCs). It delivers comprehensive hardware support for advanced network virtualization and overlay tunneling isolation layers (such as VxLAN and GENEVE), enabling swift packet routing within multi-tenant public or private clouds while ensuring strict workload isolation. Hardened security features are deeply integrated within the physical adapter firmware, protecting the hardware against unauthorized orchestration compromises and providing clean, synchronized data telemetry to central data center monitoring suites.