Intel® 82576NS Gigabit Ethernet Controller
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Legacy Ethernet Products
Products formerly Kawela
See Published PCN for EOL Details
Operating Temperature Range
0°C to 55°C
Operating Temperature (Maximum)
Operating Temperature (Minimum)
System Interface Type
PCIe v2.0 (2.5 GT/s)
NC Sideband Interface
Jumbo Frames Supported
Drivers and Software
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Latest Drivers & Software
Intel® Ethernet Product Software Release Notes
Provides Intel® Ethernet Product Software Release Notes. (26.4)View download options.
Administrative Tools for Intel® Network Adapters
This download record installs version 26.4 of the administrative tools for Intel® Network Adapters.View download options.
Adapter User Guide for Intel® Ethernet Adapters
This download contains the 26.4 version of the Intel® Ethernet Adapter User Guide.View download options.
Intel® Network Adapter Driver for 82575/6, 82580, I350, and I210/211-Based Gigabit Network Connections for Linux*
Intel® Network Adapter Driver for 82575/6, 82580, I350, and I210/211-based Gigabit Network Connections for Linux*View download options.
Intel® Network Adapter Driver for Windows Server 2012*
This download record installs version 26.4 of the Intel® Network Adapters driver for Windows Server 2012*.View download options.
Intel® Network Adapter Driver for 82575/6 and 82580-Based Gigabit Network Connections under FreeBSD*
Installs the FreeBSD* base driver 2.5.19 for Intel® 82575/6, 82580, I210/1 and I350 Ethernet Controllers.View download options.
Intel® Network Adapter Driver for Windows 7* - Final Release
Installs Intel® Network Adapter drivers release 25.0 for Windows 7*. - Final ReleaseView download options.
Intel® Network Adapter Driver for Windows Server 2008 R2* - Final Release
This download record installs version 25.0 of the Intel® Network Adapter driver for Windows Server 2008 R2*. - Final ReleaseView download options.
Intel® Ethernet Adapter Drivers for MS-DOS*
This download record installs version 24.3 of the Intel® Ethernet Adapter drivers for MS-DOS*. Final ReleaseView download options.
Disabling TCP-IPv6 Checksum Offload Capability with Intel® 1/10 GbE Controllers
Disabling TCP-IPv6 Checksum Offload Capability with Intel® 1/10 GbE ControllersView download options.
Intel® Network Adapter Driver for Windows 8* - Final Release
This installs base drivers, Intel® PROSet/Wireless Software version 22.7.1 for Windows Device Manager*, ANS, and SNMP for Intel® Network Adapters for Windows 8*.View download options.
The date the product was first introduced.
Expected Discontinuance is an estimate of when a product will begin the Product Discontinuance process. The Product Discontinuance Notification (PDN), published at the start of the discontinuance process, will include all EOL Key Milestone details. Some business units may communicate EOL timeline details before the PDN is published. Contact your Intel representative for information on EOL timelines and extended life options.
Lithography refers to the semiconductor technology used to manufacture an integrated circuit, and is reported in nanometer (nm), indicative of the size of features built on the semiconductor.
Thermal Design Power (TDP) represents the average power, in watts, the processor dissipates when operating at Base Frequency with all cores active under an Intel-defined, high-complexity workload. Refer to Datasheet for thermal solution requirements.
Fiber Channel over Ethernet
Fibre Channel over Ethernet (FCoE) is an encapsulation of Fibre Channel frames over Ethernet networks. This allows Fibre Channel to use 10 Gigabit Ethernet networks (or higher speeds) while preserving the Fibre Channel protocol.
MACsec IEEE 802.1 AE
802.1AE is the IEEE MAC Security (MACsec) standard which defines connectionless data confidentiality and integrity for media access independent protocols.
IEEE 1588, also knows as the Precision Time Protocol (PTP) is a protocol used to synchronize clocks throughout a computer network. On a local area network it achieves clock accuracy in the sub-microsecond range, making it suitable for measurement and control systems.
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Refer to Datasheet for formal definitions of product properties and features.
‡ This feature may not be available on all computing systems. Please check with the system vendor to determine if your system delivers this feature, or reference the system specifications (motherboard, processor, chipset, power supply, HDD, graphics controller, memory, BIOS, drivers, virtual machine monitor-VMM, platform software, and/or operating system) for feature compatibility. Functionality, performance, and other benefits of this feature may vary depending on system configuration.
“Announced” SKUs are not yet available. Please refer to the Launch Date for market availability.
System and Maximum TDP is based on worst case scenarios. Actual TDP may be lower if not all I/Os for chipsets are used.