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Green PCIe card with two SFP+ cages and a metal bracket

IBM

IBM Intel X520-DA2 10GbE Dual Port SFP+ Network Card 49Y7961

SKU CH-RBGJ-2QZYZ

A dual-port 10GbE SFP+ adapter on a PCIe 2.0 x8 interface using the Intel 82599ES chipset

  • Dual 10 GbE ports accelerate data-intensive workloads
  • PCI Express 2.0 x8 interface ensures efficient server integration
  • Intel 82599ES chipset delivers reliable high-speed networking
  • Two SFP+ slots enable flexible fibre or copper connectivity
  • Part 49Y7961 guarantees compatibility with select IBM systems

Dual-port 10GbE SFP+ adapter for enterprise servers

The IBM 49Y7961 Intel X520-DA2 provides two 10 Gigabit Ethernet SFP+ ports for high-speed, low-latency networking. It targets data-centre, cloud and virtualisation workloads that demand consistent throughput. The card uses the Intel 82599ES chipset and connects through a PCI Express 2.0 x8 slot.

Passive cooling suited to managed airflow

The adapter relies on system airflow rather than an onboard fan, so it adds no acoustic load in a properly cooled rack chassis. Power draw is modest for a dual-port 10GbE controller, keeping thermal contribution low inside dense server configurations. No auxiliary power connectors are required.

PCIe 2.0 x8 slot and SFP+ optics required

Installation needs a free PCI Express 2.0 x8 lane and compatible SFP+ transceivers or direct-attach cables for each port. The half-height bracket fits standard server chassis without blocking adjacent slots. Part number 49Y7961 confirms validated compatibility with select IBM systems.

How it compares

Measured against everything we stock in Ethernet Cards & NICs, at today’s prices. Recalculated every night.

Price $53.99
Cheaper than about 65% of the 1,505 comparable items (median $90.99).

Specifications

No published specifications for this item yet.

Questions about this item

How do I install the IBM 49Y7961 Intel X520-DA2 into a PCI Express 2.0 x8 slot, and what step is often missed?

Insert the card firmly into an available PCIe 2.0 x8 slot, secure the bracket screw, then attach compatible SFP+ transceivers and cables to the two ports; the step often missed is installing the correct driver for the Intel 82599ES chipset before expecting link lights.

What maintenance or replacement will the dual-port 10GbE SFP+ adapter need over time?

The adapter itself has no moving parts, but the SFP+ transceivers inserted into its two ports are consumable optics that may need replacement if links degrade or speeds change; keep spare modules matching your fibre or copper media.

What limit appears first on the Intel X520-DA2 when sustaining 10 Gb/s traffic on both ports?

The PCI Express 2.0 x8 host interface provides the ceiling; combined throughput above its bandwidth will queue at the chipset before the 10GbE line rate becomes the bottleneck.

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