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Dell E810-CQDA2 dual-port QSFP28 PCIe 4.0 network adapter

DELL

DELL E810-CQDA2 100Gbps Dual Port QSFP28 PCIe 4.0 network card

SKU CH-T833-MWZDW

Dual-port QSFP28 network adapter delivering 100Gbps Ethernet over a PCIe 4.0 interface

  • Interface typePCI-Express 4.0
  • 100 Gbps throughput for high-bandwidth workloads
  • Dual QSFP28 ports enable link aggregation or redundancy
  • PCI-Express 4.0 interface delivers low-latency data paths
  • Dell E810-CQDA2 part number ensures exact compatibility
  • Compact adapter fits dense server configurations

Dell E810-CQDA2 100Gbps Dual-Port Adapter

The Dell E810-CQDA2 is a PCI-Express 4.0 network adapter delivering two 100Gbps QSFP28 ports. It is built for servers and workstations that need high-throughput Ethernet connectivity. The card fits standard PCIe slots supporting the 4.0 interface.

Suits dual-port 100Gbps QSFP28 deployments

This adapter suits environments linking two 100Gbps QSFP28 cables directly. It does not suit builds needing a single-port card, a different connector type, or a slower link speed. Buyers without QSFP28 cabling or switch ports should look at other options.

Dual-port 100Gbps QSFP28 via PCIe 4.0

The decisive specification is the dual-port 100Gbps QSFP28 interface running on PCI-Express 4.0. Confirm the host system provides a compatible PCIe 4.0 slot and that the network fabric uses QSFP28 transceivers. Without both, the card cannot operate at its rated capacity.

How it compares

Measured against everything we stock in Ethernet Cards & NICs, at today’s prices. Recalculated every night.

Price $449.99
Pricier than about 85% of the 1,505 comparable items (median $90.99).

Specifications

Product
Brand nameDell
Part numberE810-CQDA2
Ports & slots
Interface typePCI-Express 4.0

Questions about this item

Will the QSFP28 ports need cleaning or module swaps over time?

The QSFP28 cages accept standard transceivers; dust covers should be kept on unused ports and optical modules cleaned with approved tools when links degrade.

What limits sustained throughput on the PCIe 4.0 x8 interface?

The card uses a PCIe 4.0 x8 slot, so maximum theoretical bandwidth is constrained by that link width and the 100 Gbps port speed.

How much heat does the adapter produce when both ports run at 100 Gbps all day?

The E810-CQDA2 is a passive-cooled design rated for continuous line-rate operation; ensure the server chassis provides adequate airflow across the heatsink.

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