Intel
Intel E10G42BTDA Ethernet Converged Network Adapter X520-DA2
Best high-speed adapter for demanding data center and virtualization workloads.
The Intel Ethernet Converged Network Adapter X520-DA2 is engineered for demanding data center environments requiring robust 10 Gbps connectivity. Featuring a PCIe 2.0 x8 interface and dual 10 GigE ports, this adapter excels at eliminating networking bottlenecks, especially in virtualized setups with multi-core processors. It supports unified networking and storage over a single fabric, helping to lower overall data center costs. This high-performance card is ideal for mission-critical applications, High Performance Computing (HPC), database clusters, and video-on-demand, delivering industry-leading reliability in a low-profile form factor.
$95.00
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Owner Satisfaction
4.7
/ 5
Category Rank
14
/ 961
#14 in Network Cards & Adapters
Price vs Category Average
-91%
Below average
Host Interface
8
/ PCI Express x
Who it's for
- IT administrators requiring rock-solid stability across diverse server environments
- System architects aiming to minimize CPU overhead during heavy traffic
- Budget-conscious businesses seeking reliable dual-port 10GbE performance
Who should skip it
- Data centers prioritizing modern power efficiency and advanced feature sets
- Operators managing high-density server racks with limited cooling capacity
- Network engineers planning for future upgrades to 25GbE or 40GbE
Performance breakdown
Data Throughput
Dual 10Gbps ports handle massive traffic loads with consistent, high-speed reliability.
Virtualization Efficiency
Optimized architecture minimizes CPU overhead in dense virtual machine environments.
Form Factor Versatility
Low-profile design fits seamlessly into compact server chassis and rack configurations.
Unified Fabric Support
Consolidates networking and storage traffic to streamline complex data center infrastructure.
System Compatibility
Standard PCIe x8 interface ensures broad integration with most enterprise-grade hardware.
Operational Reliability
Proven stability makes this a dependable choice for mission-critical database clusters.
Key Specs
Host Interface
PCI Express x8
Network Technology
10GBase-X
Total Number of Ports
2
Form Factor
Plug-in Card (Low Profile)
Maximum Data Rate
10000.0 Mbps
Device Supported
PC
Condition
New
Interface Type
PCI Express
Features
- Ideal for virtualization environments
- Enables unified networking and storage
- Delivers reliable, industry-leading performance
- Reduces data center total cost of ownership
- Supports demanding HPC and database clusters
- Low-profile plug-in card design
- Provides robust 10 Gbps connections
- Dual 10 GigE ports
What customers say
Customers overwhelmingly view the Intel E10G42BTDA X520-DA2 as the standard for 10 Gigabit Ethernet due to its exceptional reliability and robust performance. Users consistently report flawless operation, especially under heavy server and data center loads, making it ideal for virtualization and high-speed storage. A major factor in satisfaction is Intel's excellent driver support, ensuring broad compatibility and minimal setup issues. While the initial cost is higher than generic options, the long-term stability, guaranteed performance, and reduced maintenance deliver superior value. This proven dependability solidifies its reputation as a high-quality, essential networking component.
Know before you buy
This adapter uses 10GBase-X technology, which requires SFP+ direct attach copper cables or optical transceivers. Ensure your switch or patch panel supports the specific SFP+ modules you intend to use.
Yes, the X520-DA2 features a low-profile form factor, making it suitable for 2U rackmount servers and other space-constrained enclosures. It includes the necessary bracket hardware for installation.
No, this specific model does not support Jumbo Frames or Wake on LAN. If your network infrastructure relies on these features, you may need to consider a different adapter.
While it is physically compatible with a PCIe x8 slot, it is designed primarily for enterprise-grade servers and data center environments. Ensure your operating system has the appropriate drivers available before installation.
Yes, the X520-DA2 supports unified networking, allowing you to run both storage and standard network traffic over the same fabric. This helps reduce the number of cables and adapters required in your server.
The adapter provides dual 10 Gbps ports, offering a maximum theoretical bandwidth of 10,000 Mbps per port. It is specifically engineered to handle high-demand tasks like database clusters and virtualization.
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