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Outstanding 100Gb connectivity with low latency and consistent throughput.
E810CQDA2
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Intel Ethernet Network Adapter E810-CQDA2 - network adapter...
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E810CQDA2
- Description:
- Intel Ethernet Network Adapter E810-CQDA2 - network adapter - PCIe 4.0 x16 - QSFP28 x 2
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E810CQDA2 Overview
E810CQDA2 is an advanced Ethernet adapter that delivers a robust 25Gbps data rate through its PCIe Gen4 x8 connection interface. Designed for high-performance environments, it supports key protocols including TCP/IP, UDP, iSCSI, and NFS, while ensuring full compatibility with operating systems such as Windows, Linux, and VMware.
Built as an internal PCIe card, the E810CQDA2 is ideal for data centers, high-speed workstations, and converged network deployments, offering features like auto-negotiation, Wake-on-LAN, Jumbo Frames, and QoS. Its design promises reliable and optimized connectivity, making it a perfect choice for demanding enterprise networks and virtualization scenarios.
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E810CQDA2 Specifications
- Product Type
- Network Adapter
- Adapter Type
- Ethernet
- Data Rate
- 25Gbps
- Connection Interface
- PCIe Gen4 x8
- Supported Protocols
- TCP/IP, UDP, iSCSI, NFS
- Form Factor
- Internal PCIe Card
- Operating Temperature
- 0 to 70°C
- Storage Temperature
- -40 to 85°C
- Input Voltage
- 3.3V
- Compatibility
- Windows, Linux, VMware
- Max Speed
- 25Gbps
- Supported Features
- Auto-negotiation, Wake-on-LAN, Jumbo Frames, QoS
- Power Consumption
- N/A
- Connector Type
- SFP28
- Maximum Range
- 100 meters
- Bus Type
- PCIe x8
- Product Name
- Intel Ethernet Network Adapter E810CQDA2
- Height
- N/A
- Width
- N/A
- Depth
- N/A
- Weight
- N/A
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table 
| E810CQDA2 |  X710T4LOCPV3 |  EX710DA4G1P5 |  E810CQDA1OCPV3 |  E8102CQDA2 | |
|---|---|---|---|---|---|
| Product Type | Network Adapter | Network Adapter | Network Adapter | Network Adapter | Network Adapter |
| Adapter Type | Ethernet | Ethernet | Ethernet | Ethernet | Ethernet |
| Data Rate | 25Gbps | 10Gbps | 10Gbps | 10Gbps | 10Gbps |
| Connection Interface | PCIe Gen4 x8 | PCIe | PCIe | PCIe | PCIe |
| Supported Protocols | TCP/IP, UDP, iSCSI, NFS | TCP/IP / UDP / iSCSI / NFS | TCP/IP, UDP | TCP/IP, UDP | TCP/IP / UDP / iSCSI |
| Form Factor | Internal PCIe Card | Internal PCIe Card | Internal PCIe Card | Internal PCIe Card | Internal PCIe Card |
| Operating Temperature | 0 to 70°C | 0 to 70°C | 0 to 70°C | 0 to 70°C | 0 to 70°C |
| Storage Temperature | -40 to 85°C | -40 to 85°C | -40 to 85°C | -40 to 85°C | -40 to 85°C |
| Input Voltage | 3.3V | 3.3V | 3.3V | 3.3V | 3.3V |
| Compatibility | Windows, Linux, VMware | Windows / Linux / macOS / VMware / Hyper-V | Windows / Linux / macOS | Windows, Linux, VMware, Hyper-V | Windows / Linux / macOS / VMware / Hyper-V |
| Max Speed | 25Gbps | 10Gbps | 10Gbps | 10Gbps | 10Gbps |
| Supported Features | Auto-negotiation, Wake-on-LAN, Jumbo Frames, QoS | Auto-negotiation / Wake-on-LAN / Jumbo Frames / QoS | Auto-negotiation, Wake-on-LAN, Jumbo Frames, QoS | Auto-negotiation, Wake-on-LAN, Jumbo Frames, QoS | Auto-negotiation / Wake-on-LAN / Jumbo Frames / QoS |
| Power Consumption | N/A | 25W | 5W | 25W | 15W |
| Connector Type | SFP28 | RJ-45 | RJ-45 | RJ-45 | RJ-45 |
| Maximum Range | 100 meters | 100 meters | N/A | 100 meters | 100 meters |
| Bus Type | PCIe x8 | PCIe x8 | PCIe x4 | PCIe x8 | PCIe x4 |
| Product Name | Intel Ethernet Network Adapter E810CQDA2 | X710T4LOCPV3 10GbE Quad-Port Network Adapter | EX710DA4G1P5 10GbE Network Adapter | Intel Ethernet Adapter E810CQDA1OCPV3 | E8102CQDA2 Ethernet Network Adapter |
| Height | N/A | 1.5 inches | 1.5 inches | 1.5 inches | 1.2 inches |
| Width | N/A | 4.4 inches | 3.5 inches | 5 inches | 3.3 inches |
| Depth | N/A | 0.8 inches | 0.5 inches | 9 inches | 0.8 inches |
| Weight | N/A | 0.5 lbs | 0.4 lbs | 0.8 lbs | 0.5 lbs |
Reviews & Ratings
L
Logan Carter
5
PCIe 4.0 performance is impressive under heavy data loads.
A
Aaron Mitchell
5
Reliable QSFP28 adapter delivering enterprise-grade stability.
B
Blake Turner
5
Smooth installation and predictable high-speed networking.
C
Connor Hayes
4
Ideal for high-bandwidth storage and compute clusters.
Questions & Answers
What is the Intel Ethernet Network Adapter E810-CQDA2 (SKU: E810CQDA2)?
The Intel Ethernet Network Adapter E810-CQDA2 (SKU: E810CQDA2) is a high-performance PCIe 4.0 x16 network card with two QSFP28 ports, delivering up to 200 Gb/s aggregate bandwidth for demanding data center and enterprise environments.
What are the key specifications of the E810-CQDA2 network adapter?
Key specifications include a PCIe 4.0 x16 interface, two QSFP28 ports, 100 GbE per port, support for SR4 and LR4 optics, advanced offloads, and industry-standard Intel® E810 chipset for optimized performance.
Which operating systems support the Intel E810-CQDA2 adapter?
The Intel E810-CQDA2 adapter is supported on Windows Server (2016, 2019, 2022), Linux distributions (RHEL, CentOS, Ubuntu, SUSE), VMware ESXi, and FreeBSD with Intel-provided drivers and firmware.
How do I install the E810-CQDA2 network adapter?
To install the E810-CQDA2, power down your server, insert the card into an available PCIe 4.0 x16 slot, secure it, power on, then install the latest Intel® Ethernet drivers and firmware from intel.com.
What cable and transceiver options are compatible with QSFP28 ports?
QSFP28 ports support OM3/OM4 multimode fiber with SR4 transceivers, single-mode fiber with LR4 optics, and DAC/AOC cables up to 5 m, ensuring flexibility for short- and long-reach applications.
Can the E810-CQDA2 adapter handle virtualization workloads?
Yes, the E810-CQDA2 delivers advanced virtualization features including SR-IOV, Intel® Virtualization Technology for Connectivity (VT-c), and offloads for VMware vSphere, Microsoft Hyper-V, and KVM environments.
What performance benefits does PCIe 4.0 x16 provide?
PCIe 4.0 x16 doubles per-lane bandwidth versus PCIe 3.0, offering up to 64 GB/s bi-directional throughput. This maximizes 200 GbE data transfers with minimal latency and CPU overhead.
How much latency can I expect with the E810-CQDA2 adapter?
Intel E810-CQDA2 delivers ultra-low latency under 1.5 μs with optimized hardware packet processing and RDMA features, ideal for high-frequency trading, HPC, and real-time analytics.
What total throughput does the E810-CQDA2 support?
The E810-CQDA2 supports up to 2×100 GbE, providing 200 Gb/s aggregate throughput. With Intel® Flow Director and packet steering, you achieve consistent high-speed performance under heavy loads.
Is the adapter hot-pluggable?
No, the Intel E810-CQDA2 is not hot-pluggable. Always power down the host system before installing or removing the adapter to prevent data loss or hardware damage.
What power consumption should I anticipate?
Typical power consumption for the E810-CQDA2 is 25 W under full load and below 5 W in idle mode, enabling efficient operation in dense server configurations.
Does the adapter support link aggregation?
Yes, the Intel E810-CQDA2 supports IEEE 802.3ad link aggregation (LACP), allowing you to combine multiple 100 GbE links into a single logical connection for redundancy and higher bandwidth.
What advanced offload features are available?
Advanced offloads include TCP/UDP/IP checksum, large send/receive offload, RSS, NPAR, DDP, and Intel® QuickData Technology, all designed to reduce CPU usage and accelerate packet processing.
Which server platforms are compatible?
The Intel E810-CQDA2 is compatible with any server supporting PCIe 4.0 x16, including offerings from Dell EMC, HPE, Lenovo, Cisco, and Supermicro, following standard low-profile or full-height form factors.
How do I update drivers and firmware?
Download the latest drivers and firmware from Intel® Download Center. Use the Intel® Ethernet Network Adapter Tools or OEM utilities to apply updates and verify version compatibility.
What support and warranty does Intel provide?
Intel offers a limited lifetime warranty on the E810-CQDA2 adapter, plus 24/7 technical support, online knowledge base, firmware/driver updates, and access to Intel® Premier Support for critical deployments.