Broadcom BCM57612 2.5GbE/1GbE PCIe Ethernet Controller

Broadcom BCM57612 2.5GbE/1GbE PCIe Ethernet Controller

Brand: Broadcom | Category: Network Adapters & NICs

SKU: BCM-BCM57612 | Part #: BCM57612 | MPN: BCM57612

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About the Broadcom BCM57612 2.5GbE/1GbE PCIe Ethernet Controller

The Broadcom BCM57612 is a compact single-port Ethernet controller that bridges the gap between legacy Cat5e/Cat6 copper infrastructure and modern multi-gigabit networking demands. Deployed across entry-level workstations, NAS appliances, and managed network switches, this PCIe 2.0 x1 adapter eliminates costly cabling overhauls by delivering 2.5GbE performance over standard twisted-pair connections already in place across most enterprise and SMB environments.

Technical Capabilities:

  • Multi-speed auto-negotiation – Seamless fallback from 2.5GbE to 1GbE and 100Mbps ensures compatibility with heterogeneous network topologies
  • Efficient PCIe 2.0 x1 integration – Minimal host CPU overhead through hardware offload (TCP/UDP checksum, LRO, TSO)
  • Ultra-low power consumption – Less than 2W typical, ideal for energy-constrained appliances and edge deployments
  • Cost-effective upgrade path – Extend existing Cat5e/Cat6 runs to 2.5G speeds without infrastructure replacement

Widely used in NAS clusters, virtualization edge nodes, and network management platforms across GCC and Asia-Pacific regions, the BCM57612 combines proven Broadcom reliability with straightforward integration.

Technical Specifications

BrandBroadcom
CategoryNetwork Adapters & NICs
SKUBCM-BCM57612
Part NumberBCM57612
ConditionNew
Manufacturer Part NumberBCM57612
Ethernet Speed2.5GbE / 1GbE / 100Mbps
Port Count1 × 2.5GbE
Interface TypePCIe 2.0 x1
Cable CompatibilityCat5e / Cat6
Form FactorEthernet Controller Card
Auto-Negotiation2.5G, 1G, 100M
Target ApplicationsEntry-Level Workstations, NAS Appliances, Network Switches
ProtocolEthernet

Frequently Asked Questions about Broadcom BCM57612 2.5GbE/1GbE PCIe Ethernet Controller

What does the Broadcom BCM57612 2.5GbE/1GbE PCIe Ethernet Controller do?

The Broadcom BCM57612 2.5GbE/1GbE PCIe Ethernet Controller is enterprise networking hardware for data-center, campus, and branch deployments. Common roles include core/distribution switching, server uplinks, top-of-rack fabric, and edge connectivity in mixed Cisco/Arista environments.

What are the headline specs of the Broadcom BCM57612 2.5GbE/1GbE PCIe Ethernet Controller?

Key specifications for the Broadcom BCM57612 2.5GbE/1GbE PCIe Ethernet Controller: new condition; manufacturer part number BCM57612; ethernet speed 2.5GbE / 1GbE / 100Mbps; port count 1 × 2.5GbE; interface type PCIe 2.0 x1; cable compatibility Cat5e / Cat6; form factor Ethernet Controller Card. Manufacturer part number BCM57612. For the full datasheet with electrical, environmental, and compliance details, contact our pre-sales engineering team.

Is the Broadcom BCM57612 2.5GbE/1GbE PCIe Ethernet Controller compatible with my infrastructure?

The Broadcom BCM57612 2.5GbE/1GbE PCIe Ethernet Controller interoperates with standard switching protocols (LACP, MLAG/VPC, 802.1Q, OSPF/BGP). For specific cross-vendor scenarios — Cisco-to-Arista MLAG peering, fabric integration with Cumulus/SONiC, or migration from legacy Catalyst — our network engineers map a compatibility plan as part of the RFQ.