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Green printed circuit board with metal bracket and two QSFP28 ports

Intel

Intel E810CQDA2 Dual Port QSFP28 100Gbps network card

SKU CH-GNP6-XHYBB MPN E810CQDA2

Dual-port QSFP28 adapter delivering 10, 25, 50 or 100GbE over PCIe 4.0 x16 with ADQ and DDP for cloud workloads

  • Speed100Gbps
  • Connectors2 x QSFP28
  • InterfacePCIe 4.0 (16 GT/s)

Model E810CQDA2

Connector QSFP28

Ports & Speed 2 Ports - 100/50/25/10GbE

  • Dual QSFP28 ports deliver 100Gbps bandwidth per port
  • PCIe 4.0 x16 interface provides 16 GT/s lane speed
  • Application Device Queues steer traffic for predictable response times
  • Dynamic Device Personalization enhances packet classification for cloud workloads
  • Supports RDMA iWARP and RoCEv2 for low-latency storage connectivity

Dual-Port QSFP28 100Gbps Adapter

The Intel E810CQDA2 is a dual-port QSFP28 network adapter built on the Intel Ethernet Controller E810. It connects through a PCIe 4.0 x16 interface and targets servers handling NFV, storage, HPC-AI or hybrid cloud workloads. The card delivers 10, 25, 50 or 100GbE per port for high-throughput environments.

PCIe 4.0 x16 Bandwidth Envelope

The adapter uses a PCIe 4.0 x16 electrical link running at 16 GT/s. This lane width and generation set the practical ceiling for bidirectional throughput available to the host. Workloads that exceed the bus capacity will be constrained by the interface rather than the controller.

100Gbps Per Port Headroom

Each QSFP28 port supports data rates of 10, 25, 50 and 100Gbps, giving flexibility across mixed-speed fabrics. The dual-port design provides aggregate bandwidth for storage targets, caching tiers and database clusters. Buyers needing more than two 100Gbps links or speeds beyond 100Gbps per port should consider alternative form factors.

Highlights

  • Dual QSFP28 ports deliver 100Gbps bandwidth per port
  • PCIe 4.0 x16 interface provides 16 GT/s lane speed
  • Application Device Queues steer traffic for predictable response times
  • Dynamic Device Personalization enhances packet classification for cloud workloads
  • Supports RDMA iWARP and RoCEv2 for low-latency storage connectivity

Specifications

BrandIntel
ModelE810CQDA2
Speed100Gbps
Connectors2 x QSFP28
InterfacePCIe 4.0 (16 GT/s)
Shipping weight0.45 kg
Package size224 × 145 × 30 mm

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Questions about this item

Which speed variant of the E810CQDA2 should I select?

The adapter supports 10, 25, 50 and 100 GbE per port; choose the rate that matches your switch and cabling.

What does the 100 Gbps headline figure deliver in a live server?

Each QSFP28 port provides up to 100 Gbps Ethernet throughput for NFV, storage or HPC-AI workloads.

How does the PCIe 4.0 x16 interface limit real-world performance?

The 16 GT/s x16 lanes supply enough bandwidth for both ports at 100 Gbps without a PCIe bottleneck.

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