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Dual 10Gb Ethernet ports deliver steady throughput and strong compatibility.
E10G42BTDABLK
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Intel Ethernet Converged Network Adapter X520-DA2 - network...
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E10G42BTDABLK
- Description:
- Intel Ethernet Converged Network Adapter X520-DA2 - network adapter - PCIe 2.0 x8 - 10Gb Ethernet x 2
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E10G42BTDABLK Overview
E10G42BTDABLK is a high-performance Ethernet adapter engineered to deliver blazing 10Gbps data rates through a PCIe interface. It offers reliable connectivity and supports key protocols such as TCP/IP and UDP, ensuring smooth data transfer and network stability across major operating systems including Windows, Linux, and macOS.
Designed as an internal PCIe card, E10G42BTDABLK is ideal for data centers, high-speed workstations, and small office networks. With advanced features like auto-negotiation, Wake-on-LAN, jumbo frames, and QoS support, this adapter guarantees low-latency performance and exceptional efficiency in mission-critical networking environments.
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E10G42BTDABLK Specifications
- Product Type
- Network Adapter
- Adapter Type
- Ethernet
- Data Rate
- 10Gbps
- Connection Interface
- PCIe
- Supported Protocols
- TCP/IP, UDP
- Form Factor
- Internal PCIe Card
- Operating Temperature
- 0 to 70°C
- Storage Temperature
- -40 to 85°C
- Input Voltage
- 3.3V
- Compatibility
- Windows, Linux, macOS, VMware, Hyper-V
- Max Speed
- 10Gbps
- Supported Features
- Auto-negotiation, Wake-on-LAN, Jumbo Frames, QoS
- Power Consumption
- 12W
- Connector Type
- RJ-45
- Maximum Range
- 100 meters
- Bus Type
- PCIe x4
- Product Name
- E10G42BTDABLK 10Gb Ethernet Adapter
- Height
- 1.2 inches
- Width
- 3.4 inches
- Depth
- 0.8 inches
- Weight
- 0.5 lbs
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table 
| E10G42BTDABLK |  E10G42BTDA |  AXX10GBIOMOD |  XL710QDA2OCP |  X527DA2OCPG1P5 | |
|---|---|---|---|---|---|
| Product Type | Network Adapter | Network Adapter | Network Adapter | Network Adapter | Network Adapter |
| Adapter Type | Ethernet | Ethernet | Ethernet | Ethernet | Ethernet |
| Data Rate | 10Gbps | 10Gbps | 10Gbps | 40Gbps | 10Gbps |
| Connection Interface | PCIe | PCIe | PCIe | PCIe | PCIe |
| Supported Protocols | TCP/IP, UDP | TCP/IP, UDP, iSCSI | TCP/IP, UDP, iSCSI | TCP/IP, iSCSI, NFS | 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, macOS, VMware, Hyper-V | Windows, Linux, macOS | Windows, Linux, macOS | Windows, Linux, VMware | Windows, Linux, macOS |
| Max Speed | 10Gbps | 10Gbps | 10Gbps | 40Gbps | 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 | Auto-negotiation, Wake-on-LAN, Jumbo Frames, QoS |
| Power Consumption | 12W | N/A | 15W | N/A | 15W |
| Connector Type | RJ-45 | RJ-45 | SFP+ | N/A | RJ-45 |
| Maximum Range | 100 meters | N/A | N/A | N/A | 100 meters |
| Bus Type | PCIe x4 | PCIe x4 | PCIe x4 | PCIe x8 | PCIe x4 |
| Product Name | E10G42BTDABLK 10Gb Ethernet Adapter | E10G42BTDA Ethernet Adapter | AXX10GBIOMOD | XL710QDA2OCP | X527DA2OCPG1P5 10GbE Network Adapter |
| Height | 1.2 inches | N/A | N/A | N/A | 1.5 inches |
| Width | 3.4 inches | N/A | N/A | N/A | 4.5 inches |
| Depth | 0.8 inches | N/A | N/A | N/A | 0.8 inches |
| Weight | 0.5 lbs | N/A | N/A | N/A | 0.5 lbs |
Reviews & Ratings
T
Tristan Bell
4
Reliable PCIe 2.0 performance in our storage network.
G
Gavin Turner
5
Handles heavy traffic loads with consistent stability.
P
Preston Ward
4
Professional adapter delivering predictable 10Gb performance.
H
Harrison Cruz
5
Solid networking solution for enterprise deployments.
Questions & Answers
What are the key features of the Intel Ethernet Converged Network Adapter X520-DA2 (SKU: E10G42BTDABLK)?
The Intel X520-DA2 offers dual-port 10GbE connectivity, PCIe 2.0 x8 interface, advanced offloads (TCP/UDP checksum, large send/receive), SR-IOV, and support for FCoE and iSCSI. It delivers high throughput, low latency, and enterprise-grade reliability.
Which PCI Express slot is required for the X520-DA2 network adapter?
The X520-DA2 requires a PCIe 2.0 x8 (or higher) slot for optimal performance. It is backward compatible with PCIe 1.0/x8 and forwards compatible with PCIe 3.0/4.0 slots.
What operating systems are supported by the Intel X520-DA2 adapter?
Intel provides certified drivers for Windows Server (2008 R2, 2012, 2016, 2019), various Linux distributions (RHEL, CentOS, Ubuntu, SUSE), VMware ESXi, and FreeBSD, ensuring broad compatibility in physical and virtual environments.
Can I use the X520-DA2 with optical modules and DAC cables?
Yes. The adapter features two SFP+ cages that support a wide range of SR/LR fiber transceivers and passive/active Direct Attach Copper (DAC) cables, enabling flexible short- and long-reach connectivity.
What maximum data throughput does the X520-DA2 deliver?
Each port delivers line-rate 10Gbps Ethernet throughput, totaling 20Gbps of aggregate bandwidth. Combined with hardware offloads, it maintains wire-speed performance under heavy loads.
Does the X520-DA2 support virtualization technologies?
The adapter supports Intel VT-c, SR-IOV, and multi-queue (RSS) for efficient VM networking, enabling high VM density, reduced CPU overhead, and near-native packet I/O in VMware, Hyper-V, and KVM.
Is RDMA over Converged Ethernet (RoCE) or iWARP supported?
Yes. The X520-DA2 supports both RoCE and iWARP RDMA protocols, providing low-latency, high-throughput data transfers ideal for HPC, storage fabrics, and latency-sensitive applications.
How do I install and configure the X520-DA2 in my server?
Insert the card into an empty PCIe x8 slot, secure the bracket, install Intel PROSet drivers from intel.com/downloads, and use the PROSet utility or OS network settings to enable ports and offload features.
What is the typical power consumption of the Intel X520-DA2?
The adapter typically consumes 6.5W per port under full load (13W total). Power-saving features reduce idle power draw to approximately 4W overall, supporting energy-efficient data centers.
Which advanced offload and acceleration features are included?
Offloads include TCP/UDP checksum, large send/receive, VLAN tagging, GSO/GSOv2, RSS, DCB (802.1Qbb/802.1Qaz), FCoE, iSCSI boot, and DPDK support for accelerated packet processing.
What cable lengths and media types are supported on each port?
Using SFP+ SR transceivers, the adapter supports up to 300 m over OM3 multimode fiber. LR modules support up to 10 km single-mode fiber. Passive DACs are available in lengths up to 7 m.
Can I use this adapter for storage traffic like iSCSI or FCoE?
Yes. The X520-DA2 supports hardware iSCSI Offload and FCoE, reducing CPU overhead and delivering high-performance storage connectivity in SAN and converged infrastructure deployments.
How does the X520-DA2 handle network traffic prioritization?
It supports Data Center Bridging (DCB) with 802.1Qbb (PFC) and 802.1Qaz (ETS), enabling lossless Ethernet and traffic classes for converged LAN/SAN environments, ensuring QoS for latency-sensitive workloads.
What management and monitoring tools are available?
Intel PROSet for Windows and ixgbe‐tools for Linux offer GUI and CLI for link aggregation, VLANs, RSS configuration, and SNMP MIB support. SNMP and sFlow facilitate remote monitoring and alerting.
Which server use cases are best suited for this adapter?
Ideal for virtualization hosts, cloud servers, HPC clusters, storage arrays, and web farms. The X520-DA2 delivers high-throughput, low-latency, and converged LAN/SAN functionality for enterprise and hyperscale data centers.
What warranty and reliability features does the Intel X520-DA2 offer?
Backed by a three-year limited warranty, Intel’s global support, and rigorous qualification testing for signal integrity, thermal performance, and long-term reliability in 24/7 data center operations.