NIAGARA 32266 | Hex Port Copper Gigabit Ethernet NIC with bypass | Server Adapter Card

  NIAGARA 32266
Hex Port Copper Gigabit Ethernet NIC with bypass
Server Adapter Card



Niagara 32266


  • Niagara 32266 Hex Port Copper Gigabit Ethernet Server Adapter is built on Intel’s Gigabit technology & Interface Masters’ sterling design and customer service.
  • Niagara 32266 is designed with a built-in programmable bypass circuit to provide maximum uptime for the network. The bypass circuit takes the Niagara 32266 ports offline in case of either power or software failure. The bypass circuit works in absence of power.
  • Niagara 32266 Hex Port Copper Gigabit Ethernet NIC is designed to integrate with PCI Express compatible servers and high-end appliances providing high speed networking and bypass/failover capabilities for any mission-critical application.



  • Intel 82576EB Dual MAC & PHY ethernet controller
  • Peak bandwidth 5 Gb/s in each direction per PCI Express lane
  • 12 Gigabits per second of traffic when fully utilized
  • PCI-E x4 (Gen 2.0 signaling) compatible, 64-bit/133MHz
  • Six RJ45 connectors
  • Passive Bypass which is essential during power loss or failure
  • Link Fault Detection (LFD) support
  • Programmable “Fail-Closed" or "Fail-Open" while in the power-off state
  • Programmable independent mode to function as a dual Gigabit copper card
  • Three Integrated PHY for full and half-duplex 10/100/1000 Base-T Support
  • TCP/UDP/IP checksum offload and TCP segmentation
  • Layer 2, 3 and 4 Advanced packet filtering capabilities (IPv4, IPv6)
  • Efficient form factor - 6.7 inches in length and 4.08 inches in height
  • Low power consumption (12W maximum power)
  • Full RoHS compliance
  • FCC Class A and CE certification

Component Specifications

The Intel 82576 provides support for:

  • PCI Express v2.0 (2.5 GT/s)
  • Low Power 2.4W
  • Protocols: TCP, UDP & SCTP
  • Queues per port: (16) Tx & (16) Rx Queues
  • Enhanced Virtualization Support
    • VMDq2 & PCI SIG IOV
  • Intel® I/OAT Acceleration v3.0
    • VM Direct Assignment (VT-d)
  • Data Center Ethernet
    • Traffic Classes (802.1q): 2
    • Flow Interrupt Priority (802.3ar)
    • Priority Grouping (802.1P)
  • End-to-End Congestion Mgmt (802.1 PAR)
  • IEEE 1588 Support
    • Manageability interfaces
      • RMII, SMBus, PXE, iSCSI Boot
  • Layer 2 & 3 Security: IPSec & LinkSec



  • Length 6.7" (170.18mm)
  • Height 4.08" (103.632mm)



  • Operating Temperature: 0°C – 50°C (32°F - 122°F)
  • Storage Temperature: -20°C – 65°C (-4°F – 149°F)
  • Operating Humidity: 0%–90%, non-condensing


Ordering Part Number

Part Number Description
Niagara 32266 Hex Port Copper Gigabit NIC with bypass



  NIAGARA 32266 Datasheet

  Intel 82576 Datasheet



Additional Specifications / Certifications

FCC Certification CE Certification RoHS Certification