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Stable 10GBase-LR connectivity with consistent long-range fiber performance.
E10G41BFLRBLK
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Intel Ethernet Converged Network Adapter X520-LR1 - network...
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E10G41BFLRBLK
- Description:
- Intel Ethernet Converged Network Adapter X520-LR1 - network adapter - PCIe 2.0 x8 - 10GBase-LR
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- Brand:
- Intel
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E10G41BFLRBLK Overview
E10G41BFLRBLK is a high-performance Ethernet adapter that delivers a data rate of 10Gbps via a PCIe interface and is engineered to provide robust connectivity for demanding network environments. Designed for compatibility with leading operating systems including Windows, Linux, and macOS, it supports key network protocols such as TCP/IP, UDP, and iSCSI, making it an optimal solution for data centers, high-speed workstations, and enterprise networks.
This internal PCIe card combines durability with essential networking features like auto-negotiation, Wake-on-LAN, jumbo frames, and QoS for enhanced network performance. Its streamlined design, operative within a temperature range of 0 to 70°C, and its use of an RJ-45 connector ensure reliable integration and efficient performance in various high-demand use cases.
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E10G41BFLRBLK Specifications
- Product Type
- Network Adapter
- Adapter Type
- Ethernet
- Data Rate
- 10Gbps
- Connection Interface
- PCIe
- Supported Protocols
- TCP/IP, UDP, iSCSI
- 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
- Max Speed
- 10Gbps
- Supported Features
- Auto-negotiation, Wake-on-LAN, Jumbo Frames, QoS
- Power Consumption
- N/A
- Connector Type
- RJ-45
- Maximum Range
- N/A
- Bus Type
- PCIe x4
- Product Name
- E10G41BFLRBLK 10GbE Network Adapter
- 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 
| E10G41BFLRBLK |  9260.NGWG |  I350T4V2BLK |  XL710QDA2BLK |  AXXRMM4LITE2 | |
|---|---|---|---|---|---|
| Product Type | Network Adapter | Network Adapter | Network Adapter | Network Adapter | Network Adapter |
| Adapter Type | Ethernet | Ethernet | Ethernet | Ethernet | Ethernet |
| Data Rate | 10Gbps | 10Gbps | 1Gbps | 10Gbps | 1Gbps |
| Connection Interface | PCIe | PCIe | PCIe | PCIe | PCIe |
| Supported Protocols | TCP/IP, UDP, iSCSI | TCP/IP, UDP, iSCSI | TCP/IP / UDP | TCP/IP / UDP / iSCSI / NFS | TCP/IP / UDP |
| 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 / 5V | 3.3V | 3.3V |
| Compatibility | Windows, Linux, macOS | Windows, Linux, macOS, VMware, Hyper-V | Windows / Linux / VMware / Hyper-V | Windows / Linux / VMware | Windows / Linux / macOS |
| Max Speed | 10Gbps | 10Gbps | 1Gbps | 10Gbps | 1Gbps |
| 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 | N/A | 7.3W | N/A | 2W |
| Connector Type | RJ-45 | RJ-45 | RJ-45 | RJ-45 | RJ-45 |
| Maximum Range | N/A | N/A | 100 meters | N/A | 100 meters |
| Bus Type | PCIe x4 | PCIe x4 | PCIe x4 | PCIe x8 | PCIe x1 |
| Product Name | E10G41BFLRBLK 10GbE Network Adapter | 9260.NGWG Network Adapter | Intel I350T4V2BLK | XL710QDA2BLK | AXXRMM4LITE2 Network Adapter |
| Height | N/A | N/A | N/A | N/A | 0.5 inches |
| Width | N/A | N/A | N/A | N/A | 3.0 inches |
| Depth | N/A | N/A | N/A | N/A | 1.5 inches |
| Weight | N/A | N/A | N/A | N/A | 0.2 lbs |
Reviews & Ratings
Z
Zane Fletcher
4
Reliable PCIe integration and predictable latency.
C
Calvin Rhodes
5
Excellent adapter for extended-distance enterprise links.
S
Simon Carter
5
Professional-grade fiber networking solution.
O
Omar Phillips
4
Strong throughput and dependable compatibility.
Questions & Answers
What is the Intel Ethernet Converged Network Adapter X520-LR1?
The Intel Ethernet Converged Network Adapter X520-LR1 is a PCIe 2.0 x8 10GBase-LR network card designed for high-performance data center and enterprise connectivity over single-mode fiber.
Which connection type does the X520-LR1 support?
The adapter supports 10GBase-LR over single-mode fiber (SMF) using an LC duplex connector, delivering link distances up to 10 kilometers.
What host interface does the X520-LR1 use?
It uses a PCI Express 2.0 x8 interface for seamless integration into servers and workstations with available PCIe slots.
Which operating systems are compatible with the X520-LR1?
Intel provides drivers for Windows Server, RHEL and CentOS, SUSE Linux Enterprise Server, Ubuntu, VMware ESXi, and other common enterprise operating systems.
Does the X520-LR1 support virtualization technologies?
Yes. It supports SR-IOV for hypervisor bypass, VMDq for queue management, and Intel Virtualization Technology for connectivity consolidation.
What advanced features does the X520-LR1 offer?
The adapter offers DPDK support, iSCSI offload, Fibre Channel over Ethernet (FCoE), Receive Side Scaling (RSS), and Intel Data Direct I/O Technology.
How do I install the Intel X520-LR1 adapter?
Power down your system, insert the adapter into an available PCIe 2.0 x8 slot, secure it, install the SFP+ transceiver, connect the fiber cable, power on and install Intel drivers.
Which SFP+ transceivers are compatible with the X520-LR1?
Use Intel-compatible SFP+ LR transceivers rated for 10GBase-LR, such as Intel’s E10GSFPLR or any MSA-compliant 1310nm single-mode LC module.
What is the maximum link distance supported?
With a 10GBase-LR SFP+ module over single-mode fiber, the adapter supports link distances up to 10 kilometers.
Is the X520-LR1 backward compatible with 1GbE?
Yes. When paired with a compatible SFP transceiver, it auto-negotiates to 1GBase-LX, ensuring interoperability with existing 1GbE networks.
What is the typical power consumption of the X520-LR1?
Typical power draw is around 5.5 watts, varying slightly depending on traffic patterns and SFP+ transceiver selection.
Does the adapter support RDMA over Converged Ethernet (RoCE)?
Yes. The X520-LR1 supports RDMA over Converged Ethernet v1 and v2 (RoCE v1/v2) for low-latency, high-throughput clustering and storage.
How do I update drivers and firmware for the X520-LR1?
Download the latest drivers and firmware packages from Intel’s Download Center, then run the installer on your host OS following the provided instructions.
What are the dimensions of the X520-LR1 adapter?
The full-height card measures 4.376” x 9.5” (111.2mm x 241.3mm). A half-height bracket is also available separately.
What warranty does Intel provide for the X520-LR1?
Intel offers a three-year limited hardware warranty, covering defects in materials and workmanship under normal use and service.
How can I optimize the X520-LR1 for low latency?
Enable features like RSS, DPDK, and Receive Side Coalescing (RSC) in Intel’s driver settings and BIOS for minimal packet processing delay.