PCI-E Intel 82576 Gigabit Dual- SFP Server NICs

Dual-port Gigabit Ethernet server adapters, designed with performance enhancing features and new power management technologies

  • PO.: ST722
  • P/N.: SE-LGI576A-2FB
  • Bus Type: PCI Express X4
  • Media Port: SFP Connector
  • Main Chipset: Intel® 82576

Intel® 82576 Gigabit Dual- SFP Fiber Server Adapter

with performance enhancing features and new power management technologies


       PCI Express X4 Network adapter adopts Intel a high performance Gigabit network controller JL82576EB, By providing unparalleled features of virtualization, flexible features, and proven reliable performance, it solves the high requirements of the generation data center, it has dual 1Gps SFP port which can setup a long-distance link with a file server or a remote workstation.


- PCI-Express host interface specification v2.0 with 2.5GT/s BUS width

- Complies with dual port 1GbE SFP port 

Complies with the IEEE802.3ab specification

Layer 2 functions: IEEE 802.3x Flow Control - IEEE 802.1q VLAN

Supports Receive-side scaling (RSS)

Supports IPv 4, IPv 6 protocols

Supports Jumbo Frames up to 9.5K

Supports UDP.TCP and IP Checksum offloading 

Statistics for management and RMON

Support for virtual machines device queues

Next Generation VMDq Support (8VMs)

Interrupt throttling control to limit maximum interrupt rate and improve CPU usage

intel-82576EB 1G Dual SFP
General specification
Controller-processorIntel® 82576
Bus typePCI Express v2.0, 2.5 GT/s
Bus widthPCI Express x4, Compatible with PCIe x8/x16 slot
Connectors2 x SFP LC Fiber Optic (Fiber)
Data rate1 Gb/s
Network Standards
Physical Layer Interface
1000Base-SX / 1000Base-X / 1000Base-LX
1000BASE-LX: 10Km at 9µm
1000BASE-SX: 275 m at 62.5 µm; 550 m at 50 µm
Operating SystemWindows 7 / Windows 8 / Windows 8.1 / Windows 10
Windows Server* 2008 / Windows Server* 2012 / Windows Server* 2016

FreeBSD, Linux, VMWare ESXi

Hardware & environment

LED IndicatorsLink: Green-LED; ACT: Yellow-LED
CertificationsFCC, CE, RoHS
Operating temperature0 °C to 55 °C (32 °F to 131 °F)
Storage temperature-40 °C to 70 °C (-40 °F to 158 °F)
Storage humidityMaximum: 90% non-condensing relative humidity at 35 °C

Packing Accessories list

1 x PCIe intel 82576 Dual SFP Fiber Server NICs
1 x User's Manual
1 x CD Driver
1 x Low profile bracket


Only the above package contents, other products are not included. 

The allowable error of size measurement is +/- 1~3mm, and the weight of the product is subject to the actual product. 

DimensionsL104 x W69mm (measured without PCIe bracket)
Package SizeL175 x W125 x H30mm (Built-in blister)
Product weight 64.8g
Package weight




PO#P/NSpecificationsOrdering Note
ST722SE-LGI576A-2FBPCIe X4 Gigabit Dual SFP Fiber Server NICs  
Based on Intel 82576 Ethernet Controller


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