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IBM NetXtreme II dual-port Gigabit Ethernet PCIe x4 network card, bare board no bracket

IBM

IBM 49Y7947 NetXtreme II dual-port 1Gbps PCIe x4 network card

SKU CH-GV2Y-9F57Y

Dual-port 10/100/1000 Gigabit Ethernet adapter on PCI-Express x4, supplied as bare card without bracket

  • Dual ports provide redundant 10/100/1000 links
  • PCIe x4 interface delivers full 1 Gbps throughput per port
  • Bare card design fits low-profile or custom brackets
  • IBM NetXtreme II controller offloads TCP/IP processing
  • Lightweight 1.0 pound form factor simplifies installation

Dual-port Gigabit server adapter

This IBM NetXtreme II card adds two 10/100/1000 Ethernet ports through a single PCI-Express x4 slot. It targets administrators who need redundant links or separate traffic planes on rack-mount or tower servers without consuming multiple expansion slots.

PCIe x4 lane ceiling

The x4 electrical interface caps combined throughput at the PCIe generation signalling rate of the host platform. Each port negotiates at 10, 100 or 1000 Mbps, so total bi-directional traffic cannot exceed the slot bandwidth available in the specific server chassis.

Replaces single-port NICs

Swapping a single-port gigabit adapter for this dual-port model doubles the available copper links while occupying one slot. The upgrade is worthwhile when link aggregation, fail-over or network segmentation is required and the server has a free x4 or wider slot.

Highlights

  • Dual ports provide redundant 10/100/1000 links
  • PCIe x4 interface delivers full 1 Gbps throughput per port
  • Bare card design fits low-profile or custom brackets
  • IBM NetXtreme II controller offloads TCP/IP processing
  • Lightweight 1.0 pound form factor simplifies installation

Specifications

No published specifications for this item yet.

Questions about this item

Should I pick the dual-port or single-port version of the 49Y7947?

This listing is the dual-port 49Y7947 with two 10/100/1000 ports; a single-port variant would carry a different part number.

What does the 1Gbps rating mean when the card is installed in a server?

Each port negotiates at 10, 100 or 1000 Mbps, so the 1Gbps figure is the maximum line rate per port under full-duplex traffic.

The card uses PCI-Express x4 — what bandwidth does that actually provide?

A PCI-Express x4 slot supplies four lanes, giving enough throughput for both 1Gbps ports to run at line speed simultaneously.

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