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Green printed circuit board with silver metal bracket and two SFP+ cages

DELL

DELL 540-BBUN Broadcom 57412 10GbE Dual-Port SFP+ Network Card

SKU CH-2VXF-B0AHQ MPN 540-BBUN

Dual-port SFP+ 10GbE plug-in card with Broadcom 57412 controller for server networking

  • Product weight0.5
  • Dual 10 GbE ports for high-bandwidth server links
  • PCI Express host interface for broad server compatibility
  • Two SFP+ cages accept optical fibre transceivers
  • 10GBase-X technology delivers 10 Gb/s Ethernet performance
  • Lightweight 0.5 kg plug-in card simplifies installation

Dual-Port 10GbE SFP+ Server Adapter

The Dell 540-BBUN adds two 10 Gigabit Ethernet ports to a server through a PCI Express slot. Each port accepts an SFP+ optical transceiver for fibre connectivity. The card is built for installation in compatible server chassis.

PCI Express Host Interface Limitation

The adapter connects to the host system via a PCI Express bus, so available lane width and generation on the motherboard determine the maximum practical throughput. A slot with insufficient lanes or an older generation will cap the realised bandwidth below the 10GbE line rate. Optical fibre media is required; copper direct-attach cables are not supported by the SFP+ ports.

Two-Port Configuration Defines Use Case

The card provides exactly two SFP+ ports, making it suitable for servers that need a redundant link or a small aggregation group. Buyers who need more than two 10GbE connections from a single add-in card must select a different adapter with a higher port count.

How it compares

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

Price $302.99
Pricier than about 77% of the 1,505 comparable items (median $90.99).

Specifications

Product
Brand nameDell
Size & build
Shipping weight0.24 kg
Package size254 × 178 × 51 mm

Questions about this item

How do I decide between the single-port and dual-port versions of the 57412?

This 540-BBUN model provides two SFP+ ports on one PCI Express card, so you get dual 10GbE links without occupying a second slot.

What does the 10GbE rating actually deliver in a server?

Each port supports 10GBase-X optical fibre, giving up to 10 Gbps per port for high-throughput server workloads.

Which PCI Express generation does the card use and what bandwidth ceiling does that impose?

The card installs in a standard PCI Express slot; the host interface is PCI Express, and each SFP+ port is capped at 10 Gbps by the 10GBase-X media.

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