Intel PCIe 4.0 x16 - QSFP28 x 2 Network Adapter

Overview

The Intel E8102CQDA2 is a high-performance network adapter designed to meet the demanding needs of server and data center environments. Featuring two QSFP28 ports, it supports up to 100Gbps per port and can deliver a combined throughput of 200Gbps when configured for bifurcation. This adapter is built on the Intel Ethernet Controller E810 and uses a PCIe 4.0 x16 interface to ensure fast and efficient communication with the host system, making it ideal for applications requiring high bandwidth and low latency.

Key features

• Two QSFP28 ports provide flexible high-speed networking options with up to 100Gbps per port.
• PCIe 4.0 x16 interface enables rapid data transfers and reduces communication delays with the host system.
• Supports advanced virtualization features to optimize performance in complex server environments.
• Includes RDMA support through iWARP and RoCEv2, allowing low-latency, high-throughput data transfers essential for modern workloads.
• Compatible with DAC, optical, and active optical cables, offering versatile network setup choices.
• Full-height bracket design fits standard server configurations for straightforward installation.

Key specs

• Network ports: 2 x QSFP28
• Maximum throughput: 100Gbps per port, 200Gbps total with bifurcation
• Controller: Intel Ethernet Controller E810
• Interface: PCIe 4.0 x16
• RDMA support: iWARP and RoCEv2
• Bracket type: Full-height

Connectivity and compatibility

This adapter supports a range of cable types, including direct attach copper (DAC), optical fiber, and active optical cables, allowing it to integrate seamlessly into various network infrastructures. Its PCIe 4.0 x16 interface ensures compatibility with modern server motherboards, providing the bandwidth necessary for high-speed data transfers. The inclusion of RDMA protocols like iWARP and RoCEv2 enhances compatibility with data center applications that demand low latency and efficient CPU utilization.

Performance and reliability

Built on the Intel Ethernet Controller E810, this network adapter delivers reliable and consistent performance under heavy workloads. Its advanced virtualization capabilities help reduce CPU overhead, improving overall system efficiency. The support for RDMA technologies enables faster data movement with minimal latency, which is critical for cloud computing, high-frequency trading, and storage over Ethernet. The robust design and standard full-height bracket ensure it fits securely in server racks, maintaining stable operation in demanding environments.

Ideal uses and environments

The Intel E8102CQDA2 is well suited for data centers and enterprise servers that require high bandwidth and low latency networking. It works effectively in cloud computing setups, financial trading platforms, and storage networks where fast and reliable data transfer is essential. Its flexibility with cable types and virtualization support makes it a strong choice for IT professionals upgrading infrastructure or building new high-performance networks.