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Dual-port SFP network card on PCIe x1 bracket

Allied Telesis

Allied Telesis AT-2911SFP/2-901 network card

SKU CH-9TWA-FZMY5 MPN AT-2911SFP/2-901

Dual SFP Gigabit Ethernet PCIe x1 adapter with Broadcom BCM5718 chipset and RoHS compliance

  • Rated speed1,000 Mbit/s
  • Interface typePCI-Express
  • Key featuresProduct Type:Gigabit Ethernet Card Number of Total Expansion
  • Product weight0.22
  • Dual SFP ports enable flexible fibre uplinks
  • PCI Express x1 interface fits low-profile slots
  • Broadcom BCM5718 chipset delivers 1000 Mbps throughput
  • RoHS certified for reduced hazardous substances
  • Lightweight 0.22 kg card eases installation

Dual-port Gigabit adapter for servers

The Allied Telesis AT-2911SFP/2-901 is a PCI-Express x1 network card with two SFP slots for 1000Base-X fibre connections. It uses the Broadcom BCM5718 chipset and fits a single low-profile expansion slot. The card suits administrators adding redundant Gigabit links to rack-mount servers or workstations.

Replaces single-port copper NICs

Moving from a single copper port to dual SFP ports adds link redundancy and lets you choose fibre type per run. The upgrade is worthwhile when you need failover between switches or must span distances beyond copper limits without adding a second card.

PCIe x1 lane caps throughput

The x1 Gen 2 interface limits total bidirectional bandwidth to the lane rate, so simultaneous full-duplex traffic on both ports will contend for that ceiling. Each SFP port negotiates 1000 Mbps, but aggregate throughput cannot exceed the host slot capacity. RoHS compliant.

How it compares

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

Price $227.99
Pricier than about 71% of the 1,505 comparable items (median $90.99).

Specifications

Product
Brand nameAllied Telesis
Model nameAT-2911SFP/2
Performance
Rated speed1,000 Mbit/s
Ports & slots
Interface typePCI-Express
Size & build
Shipping weight0.20 kg
Package size235 × 175 × 25 mm

Questions about this item

Does the AT-2911SFP/2-901 fit a standard PCI Express x1 slot?

Yes, the card uses a PCI Express x1 version 2 host interface and occupies one full-height expansion slot in the chassis.

What is the correct way to install the SFP transceivers into the dual ports?

Insert each transceiver firmly until it clicks into the SFP cage, then connect the fiber cables; the common mistake is seating the module loosely so the link fails to come up.

When should the SFP modules be replaced in this adapter?

Replace modules if link errors increase, optical power drops below the vendor threshold, or after a firmware update changes supported transceiver codes.

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